Summary Of Their Eyes Were Watching God - 1252 Words

Sheila Arman Mrs. Coghill AP Literature 18 December 2015 Their Eyes Were Watching God Overview Questions 1. Janie’s relationship with her first husband Logan Killicks consists of no true feelings. Her grandmother suggests that she marries this man because of his ability to provide for her and give her the protection she needs. Her grandmother believes that in time, Janie will develop undying love for her husband however she fails to see that. She fulfilled her household duties but after a year of marriage Janie â€Å"noticed that her husband had stopped talking in rhymes to her. He ceased to wonder at her long black hair† (26). From this relationship she learned that â€Å"marriage did not make love† so her â€Å"first dream was dead† (25). Logan’s last name Killicks means a heavy stone or anchor which illustrates how her desired to have a women who would anchor herself to him and listen to him regaurdless since he is the more dominant. When Janie challenges him, he breaks down as he abruptly states that he would â€Å"come in dere and kill [her]† (31) which reflects his las name â€Å"kill†icks. The passion they once had dissipated which left Janie unsatisfied causing her to remarry to another man named Jody Starks. Initially, Janie enjoys being with Starks as he treats her with value and importance. However, soon she recognizes how he is just like Killicks as he treats her like a possession and object of beauty and does not allow her to voice her opinion as she is â€Å"getting’ too moufy† (75). HeShow MoreRelatedThe Book Of Leviticus Singles Out What God Has Done For The Israelites852 Words   |  4 Pagesbook of Deuteronomy singles out what God has done for the Israelites. It also teaches them what they need to do. Obedience and loving the Lord is a major theme. It was written by Moses as a summary of the last 40 years that the Israelites wandered the desert before he died. Deuteronomy stresses the theme of obedience. 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The time period in which mythological tales were told began over one hundred years ago in 19 BC for the Romans through the epicRead MoreAnalysis Of The Book The Eyes Were Watching God 1556 Words   |  7 PagesIB English III Summer Assignment Universal Statement: Summary: All of Janie Crawford life she always hoped for true love, but while growing up she had to find love a specific way. After having to failed marriages she found the love of her life, which was Tea Cake. After spending a short period of time together, Tea Cake became ill and eventually died. Even though she lost her soul mate Janie still felt the spirit of him in the sky. Theme Word: Love Sentence: In this novel, Janie’s ultimate goalRead More The Conveyance of Emotion in the Writing of Zora Neale Hurston1668 Words   |  7 PagesThe Conveyance of Emotion in the Writing of Zora Neale Hurston Sharpening Her Oyster Knife: I am not tragically colored. There is no great sorrow dammed up in my soul, nor lurking behind my eyes. I do not mind at all. I do not belong to the sobbing school of Negrohood who hold that nature somehow has given them a lowdown dirty deal and whose feelings are all hurt about it....No, I do not weep at the world -- I am too busy sharpening my oyster knife. Read MoreUncle Tom s Cabin By Chapter Summary And Arrangement Of The Book1024 Words   |  5 PagesBrief Summary and Arrangement of the Book: The book Uncle Tom’s Cabin is about slavery in the South. The book follows Eliza, a mother living in Kentucky with the Shelbys. Eliza loved them as if they were her parents, but they fell into debt and Mr. Shelby had to sell two of his slaves: Eliza’s son and Uncle Tom. Eliza fearing for the life of her child fled to Canada. Part of the book focuses on her journey to Canada; being chased by slave catchers, and reuniting with her lost husband. The otherRead MoreCritique of Oprah Winfreys Film Version of Their Eyes Were Watching God1771 Words   |  8 PagesOprah Winfrey lied on the opposite end of Zora Neale Hurston’s spectrum when she produced her atrocious rendition of Hurston’s stellar novel, Their Eyes Were Watching God. She modified characters and symbols, altered the theme and re lationships, and utterly desolated the significance of the title, making it almost unrecognizable to someone who has read the book. Winfrey totally eviscerated Hurston’s unsurpassed novel, extrapolating what she thought important without going in depth in to the trueRead MoreHow It Feels To Be Colored Me By Zora Neale Hurston825 Words   |  4 Pages1891 and lived in the first all-black town in the United States, Eatonville, Florida. Her 1937 novel, Their Eyes Were Watching God and played a vital role in the literacy movement the Harlem Renaissance is what she is best known for. Zora Neale Hurston depicts racism in her writings and has contributed greatly to African-American literature. Her work became more popular posthumously. Summary: Zora Neale Hurston How It Feels to Be Colored Me is an autobiographical short story wrote in 1926. She takesRead MoreDavid and Goliath Analysis Essay965 Words   |  4 Pagesthe sheep while feeding and keeping them safe from the lions and bears. While watching the sheep David would spend many moments speaking to God and playing a harp. David’s brothers were at the battlefield and one day he was â€Å"sent to the battle lines by his father to bring back news of his brothers.† (Fairchild, 2012) David was not afraid to go to the place where the soldiers were fighting because he had the faith of God beside him. â€Å"While there David heard Goliath shouting his daily defiance and he

Exploration Of Holistic Development Within A Child s Life

Introduction The following essay will address issues in relation to the nature and nurture debate. The indicated debate reviews aspects of behaviours, either inherited or obtained by environmental influences (Waches 1992). Wachs (1992 p. 2) states ‘the development of a child could be viewed as akin to the growth of a plant- a little sunshine and a little water was all the environmental contribution that was necessary to promote what was inherent in the organism’. The main focus of the essay is exploration of holistic development incorporated in a child’s life such as; physical, emotional, intellectual, language and communication (NCM, 2014). Holistic development views the child as a whole individual (Meggitt 2012); and considers the†¦show more content†¦Cognitive structures are developed when a child is accustomed to their surroundings. Meanwhile the child is exposed to new experiences creating new information, resulting in schemas developing, either being changed or modified (About 2014). Accommodation is reviewing an existing schema, desiring change (McLeod 2012). For example, a child raised in a home has a stereotypical approach on another social group. However, when the child moves away from the environment and surrounds themselves with people from the group realises the schema is wrong, in distinction to interactions and experiences. Furthermore, Piaget believes a balance among assimilation and accommodation must be formed so the child can learn (About 2014). Equilibration is an operation searching to accomplish cognitive stability in assimulation and accommodation (Hummed, 1998). The child will continuously interpret and fathom the world through experiences. Conversely, challenged by experiences challenging their understanding (Oakley 2004). Lev Vygotsky is the foundation of extravagant amounts of research in cognitive development (McLeod 2014). Vygotsky observed children as curious and active in their own learning, he underlined the central role of social interaction in cognitive development (McLeod 2014). The nature and nurture debate is combined with cognitive development. The central debate is accustomed with developmental psychology, including; physical

Frostbite Chapter 7 Free Essays

Seven I ANGRILY PUSHED THROUGH THE double doors that led into the Moroi dorm. Snow swirled in behind me, and a few people lingering on the main floor glanced up upon my entrance. Not surprisingly, several of them did double takes. We will write a custom essay sample on Frostbite Chapter 7 or any similar topic only for you Order Now Swallowing, I forced myself not to react. It would be okay. No need to freak out. Novices got injured all the time. It was actually rarer not to get injured. Admittedly, this was a more noticeable injury than most, but I could live with it until it healed, right? And it wasn’t like anyone would know how I’d received it. â€Å"Hey Rose, is it true your own mother punched you?† I froze. I’d know that taunting soprano voice anywhere. Turning slowly, I looked into the deep blue eyes of Mia Rinaldi. Curly blond hair framed a face that might have been cute if not for the malicious smirk on it. A year younger than us, Mia’d taken on Lissa (and me by default) in a war to see who could tear apart the other’s life most quicklya war, I should add, that she started. It had involved her stealing Lissa’s ex-boyfrienddespite the fact Lissa had decided in the end she didn’t want himand the spreading of all sorts of rumors. Admittedly, Mia’s hatred hadn’t been entirely unjustified. Lissa’s older brother, Andrewho had been killed in the same car accident that technically â€Å"killed† mehad used Mia pretty badly when she was a freshman. If she weren’t such a bitch now, I would have felt sorry for her. It had been wrong of him, and while I could understand her anger, I don’t know that it was fair of her to take that out on Lissa in the way she did. Lissa and I had technically won the war in the end, but Mia had inexplicably bounced back. She didn’t run with the same elite that she once had, but she had rebuilt a small contingent of friends. Malicious or not, strong leaders always attract followers. I’d found that about 90 percent of the time, the most effective response was to ignore her. But we had just crossed over to the other 10 percent, because it’s impossible to ignore someone announcing to the world that your mother just punched youeven if it was true. I stopped walking and turned around. Mia stood near a vending machine, knowing she’d drawn me out. I didn’t bother asking how she’d found out about my mother giving me the black eye. Things rarely stayed secret around here. When she caught full sight of my face, her eyes widened in unabashed delight. â€Å"Wow. Talk about a face only a mother could love.† Ha. Cute. From anyone else, I would have applauded the joke. â€Å"Well, you’re the expert on face injury,† I said. â€Å"How’s your nose?† Mia’s icy smile twitched a little, but she didn’t back down. I’d broken her nose about a month agoat a school dance of all placesand while the nose had since healed, it now sat just the tiniest bit askew. Plastic surgery could probably fix it up, but from my understanding of her family’s finances, that wasn’t possible just now. â€Å"It’s better,† she replied primly. â€Å"Fortunately, it was only broken by a psychopathic whore and not anyone actually related to me.† I gave her my best psychopathic smile. â€Å"Too bad. Family members hit you by accident. Psychopathic whores tend to come back for more.† Threatening physical violence against her was usually a pretty sound tactic, but we had too many people around right now for that to be a legitimate concern for her. And Mia knew it. Not that I was above attacking someone in this kind of settinghell, I’d done it lots of timesbut I was trying to work on my impulse control lately. â€Å"Doesn’t look like much of an accident to me,† she said. â€Å"Don’t you guys have rules about face punches? I mean, that looks really far out of bounds.† I opened my mouth to tell her off, but nothing came out. She had a point. My injury was far out of bounds; in that sort of combat, you aren’t supposed to hit above the neck. This was way above that forbidden line. Mia saw my hesitation, and it was like Christmas morning had come a week early for her. Until that moment, I don’t think there’d ever been a time in our antagonistic relationship in which she’d rendered me speechless. â€Å"Ladies,† came a stern, female voice. The Moroi attending the front desk leaned over it and fixed us with a sharp look. â€Å"This is a lobby, not a lounge. Either go upstairs or go outside.† For a moment, breaking Mia’s nose again sounded like the best idea in the worldto hell with detention or suspension. After a deep breath, I decided retreat was my most dignified action now. I stalked off toward the stairs leading up to the girls’ dorm. Over my shoulder, I heard Mia call, â€Å"Don’t worry, Rose. It’ll go away. Besides, it’s not your face guys are interested in.† Thirty seconds later, I beat on Lissa’s door so hard, it was a wonder my fist didn’t go through the wood. She opened it slowly and peered around. â€Å"Is it just you out here? I thought there was an army at theoh my God.† Her eyebrows shot up when she noticed the left side of my face. â€Å"What happened?† â€Å"You haven’t heard already? You’re probably the only one in the school who hasn’t,† I grumbled. â€Å"Just let me in.† Sprawling on her bed, I told her about the day’s events. She was properly appalled. â€Å"I heard you’d been hurt, but I figured it was one of your normal things,† she said. I stared up at the spackled ceiling, feeling miserable. â€Å"The worst part is, Mia was right. It wasn’t an accident.† â€Å"What, you’re saying your mom did it on purpose?† When I didn’t answer, Lissa’s voice turned incredulous. â€Å"Come on, she wouldn’t do that. No way.† â€Å"Why? Because she’s perfect Janine Hathaway, master of controlling her temper? The thing is, she’s also perfect Janine Hathaway, master of fighting and controlling her actions. One way or another, she slipped up.† â€Å"Yeah, well,† said Lissa, â€Å"I think her stumbling and missing her punch is more likely than her doing it on purpose. She’d have to really lose her temper.† â€Å"Well, she was talking to me. That’s enough to make anyone lose their temper. And I accused her of sleeping with my dad because he was the soundest evolutionary choice.† â€Å"Rose,† groaned Lissa. â€Å"You kind of left out that part in your recap. Why’d you say that to her?† â€Å"Because it’s probably true.† â€Å"But you had to know it’d upset her. Why do you keep provoking her? Why can’t you just make peace with her?† I sat upright. â€Å"Make peace with her? She gave me a black eye. Probably on purpose! How do I make peace with someone like that?† Lissa just shook her head and walked over to the mirror to check her makeup. The feelings coming through our bond were ones of frustration and exasperation. Lingering in the back was a bit of anticipation, too. I had the patience to examine her carefully, now that I’d finished my venting. She had on a silky lavender shirt and a knee-length black skirt. Her long hair had the kind of smooth perfection only achieved by spending an hour of your life on it with a hair dryer and flat iron. â€Å"You look nice. What’s up?† Her feelings shifted slightly, her irritation with me dimming a little. â€Å"I’m meeting Christian soon.† For a few minutes there, it had felt like the old days with Lissa and me. Just us, hanging out and talking. Her mention of Christian, as well as the realization that she’d have to leave me soon for him, stirred up dark feelings in my chest†¦feelings I had to reluctantly admit were jealousy. Naturally, I didn’t let on to that. â€Å"Wow. What’d he do to deserve that? Rescue orphans from a burning building? If so, you might want to make sure he didn’t set the building on fire in the first place.† Christian’s element was fire. It was fitting since it was the most destructive one. Laughing, she turned from the mirror and noticed me gently touching my swollen face with my fingers. Her smile turned kind. â€Å"It doesn’t look that bad.† â€Å"Whatever. I can tell when you’re lying, you know. And Dr. Olendzki says it’ll be even worse tomorrow.† I lay back down on the bed. â€Å"There probably isn’t enough concealer in the world to cover this, is there? Tasha and I’ll have to invest in some Phantom of the Opera-style masks.† She sighed and sat on the bed near me. â€Å"Too bad I can’t just heal it.† I smiled. â€Å"That would be nice.† The compulsion and charisma brought on by spirit were great, but really, healing was her coolest ability. The range of things she could achieve was staggering. Lissa was also thinking about what spirit could do. â€Å"I wish there were some other way to control the spirit †¦ in a way that still let me use the magic†¦.† â€Å"Yeah,† I said. I understood her burning desire to do great things and help people. It radiated off of her. Hell, I would also have liked to have this eye cleared up in an instant rather than days. â€Å"I wish there were too.† She sighed again. â€Å"And there’s more to me than just wishing I could heal and do other stuff with spirit. I also, well, just miss the magic. It’s still there; it’s just blocked off by the pills. It’s burning inside of me. It wants me, and I want it. But there’s a wall between us. You just can’t imagine it.† â€Å"I can, actually.† It was true. Along with having a general sense for her feelings, I could sometimes also â€Å"slip into her.† It was hard to explain and ever harder to endure. When that happened, I could literally see through her eyes and feel what she experienced. During those times, I was her. Many times, I’d been in her head while she longed for the magic, and I’d felt the burning need she spoke of. She often woke up at night, yearning for the power she could no longer reach. â€Å"Oh yeah,† she said ruefully. â€Å"I forget about that sometimes.† A sense of bitterness filled her. It wasn’t directed at me so much as it was the no-win nature of her situation. Anger sparked inside of her. She didn’t like feeling helpless any more than I did. The anger and frustration intensified into something darker and uglier, something I didn’t like. â€Å"Hey,† I said, touching her arm. â€Å"You okay?† She closed her eyes briefly, then opened them. â€Å"I just hate it.† The intensity of her feelings reminded me of our conversation, the one we’d had just before I went to the Badica house. â€Å"You still feel like the pills might be weakening?† â€Å"I don’t know. A little.† â€Å"Is it getting worse?† She shook her head. â€Å"No. I still can’t use the magic. I feel closer to it†¦ but it’s still blocked off.† â€Å"But you still†¦ your moods †¦Ã¢â‚¬  â€Å"Yeah †¦ they’re acting up. But don’t worry,† she said, seeing my face. â€Å"I’m not seeing things or trying to hurt myself.† â€Å"Good.† I was glad to hear it but still worried. Even if she still couldn’t touch the magic, I didn’t like the idea of her mental state slipping again. Desperately, I hoped the situation would just stabilize on its own. â€Å"I’m here,† I told her softly, holding her gaze. â€Å"If anything happens that’s weird†¦you tell me, okay?† Like that, the dark feelings disappeared within her. As they did, I felt a weird ripple in the bond. I can’t explain what it was, but I shuddered from the force. Lissa didn’t notice. Her mood perked up again, and she smiled at me. â€Å"Thanks,† she said. â€Å"I will.† I smiled, happy to see her back to normal. We lapsed into silence, and for the briefest of moments, I wanted to pour my heart out to her. I’d had so much on my mind lately: my mother, Dimitri, and the Badica house. I’d been keeping those feelings locked up, and they were tearing me apart. Now, feeling so comfortable with Lissa for the first time in a long time, I finally felt that I could let her into my feelings for a change. Before I could open my mouth, I felt her thoughts suddenly shift. They became eager and nervous. She had something she wanted to tell me, something she’d been thinking about intently. So much for pouring my heart out. If she wanted to talk, I wouldn’t burden her with my problems, so I pushed them aside and waited for her to speak. â€Å"I found something in my research with Ms. Carmack. Something strange†¦Ã¢â‚¬  â€Å"Oh?† I asked, instantly curious. Moroi usually developed their specialized element during adolescence. After that, they were put into magic classes specific to that element. But as the only spirit user on record at the moment, Lissa didn’t really have a class she could join. Most people believed she just hadn’t specialized, but she and Ms. Carmackthe magic teacher at St. Vladimir’shad been meeting independently to learn what they could about spirit. They researched both current and old records, checking for clues that might lead to other spirit users, now that they knew some of the telltale signs: an inability to specialize, mental instability, etc. â€Å"I didn’t find any confirmed spirit users, but I did find†¦reports of, um, unexplained phenomena.† I blinked in surprise. â€Å"What kind of stuff?† I asked, pondering what would count as â€Å"unexplained phenomena† for vampires. When she and I had lived with humans, we would have been considered unexplained phenomena. â€Å"They’re scattered reports†¦but, like, I read this one about a guy who could make others see things that weren’t there. He could get them to believe they were seeing monsters or other people or whatever.† â€Å"That could be compulsion.† â€Å"Really powerful compulsion. I couldn’t do that, and I’m strongeror used to bein it than anyone we know. And that power comes from using spirit†¦.† â€Å"So,† I finished, â€Å"you think this illusion guy must have been a spirit user too.† She nodded. â€Å"Why not contact him and find out?† â€Å"Because there’s no information listed! It’s secret. And there are others just as strange. Like someone who could physically drain others. People standing nearby would get weak and lose all their strength. They’d pass out. And there was someone else who could stop things in midair when they were thrown at him.† Excitement lit up her features. â€Å"He could have been an air user,† I pointed out. â€Å"Maybe,† she said. I could feel the curiosity and excitement swirling through her. She desperately wanted to believe there were others out there like her. I smiled. â€Å"Who knew? Moroi have Roswell- and Area 51-type stuff. It’s a wonder I’m not being studied somewhere to see if they can figure out the bond.† Lissa’s speculative mood turned teasing. â€Å"I wish I could see into your mind sometimes. I’d like to know how you feel about Mason.† â€Å"He’s my friend,† I said stoutly, surprised at the abrupt change in subject. â€Å"That’s it.† She tsked. â€Å"You used to flirtand do other stuffwith any guy you could get your hands on.† â€Å"Hey!† I said, offended. â€Å"I wasn’t that bad.† â€Å"Okay†¦maybe not. But you don’t seem interested in guys anymore.† I was interested in guyswell, one guy. â€Å"Mason’s really nice,† she continued. â€Å"And crazy about you.† â€Å"He is,† I agreed. I thought about Mason, about that brief moment when I’d thought he was sexy outside Stan’s class. Plus, Mason was really funny, and we got along beautifully. He wasn’t a bad prospect as far as boyfriends went. â€Å"You guys are a lot alike. You’re both doing things you shouldn’t.† I laughed. That was also true. I recalled Mason’s eagerness to take on every Strigoi in the world. I might not be ready for thatdespite my outburst in the carbut I shared some of his recklessness. It might be time to give him a shot, I thought. Bantering with him was fun, and it had been a long time since I’d kissed anyone. Dimitri made my heart ache †¦ but, well, it wasn’t like anything else was going on there. Lissa watched me appraisingly, like she knew what I was thinkingwell, aside from the Dimitri stuff. â€Å"I heard Meredith say you were an idiot for not going out with him. She said it’s because you think you’re too good for him.† â€Å"What! That’s not true.† â€Å"Hey, I didn’t say it. Anyway, she said she’s thinking of going after him.† â€Å"Mason and Meredith?† I scoffed. â€Å"That’s a disaster in the making. They have nothing in common.† It was petty, but I’d gotten used to Mason always doting on me. Suddenly, the thought of someone else getting him irked me. â€Å"You’re possessive,† Lissa said, again guessing my thoughts. No wonder she got so annoyed at me reading her mind. â€Å"Only a little.† She laughed. â€Å"Rose, even if it’s not Mason, you really should start dating again. There are lots of guys who would kill to go out with youguys who are actually nice.† I hadn’t always made the best choices when it came to men. Once again, the urge to spill all my worries to her seized me. I’d been hesitant to tell her about Dimitri for so long, even though the secret burned inside of me. Sitting with her here reminded me that she was my best friend. I could tell her anything, and she wouldn’t judge me. But, just like earlier, I lost the chance to tell her what was on my mind. She glanced over at her alarm clock and suddenly sprang up from the bed. â€Å"I’m late! I’ve got to meet Christian!† Joy filled her, underscored with a bit of nervous anticipation. Love. What could you do? I swallowed back the jealousy that started to raise its ugly head. Once again, Christian had taken her away from me. I wasn’t going to be able to unburden myself tonight. Lissa and I left the dorm, and she practically sprinted away, promising we’d talk tomorrow. I wandered back to my own dorm. When I got to my room, I passed by my mirror and groaned when I saw my face. Dark purple surrounded my eye. In talking to Lissa, I’d almost forgotten about the whole incident with my mother. Stopping to get a closer look, I stared at my face. Maybe it was egotistical, but I knew I looked good. I wore a C-cup and had a body much coveted in a school where most of the girls were supermodel slim. And as I’d noted earlier, my face was pretty too. On a typical day, I was a nine around hereten on a very good one. But today? Yeah. I was practically in negative numbers. I was going to look fabulous for the ski trip. â€Å"My mom beat me up,† I informed my reflection. It looked back sympathetically. With a sigh, I decided I might as well get ready for bed. There was nothing else I wanted to do tonight, and maybe extra sleep would speed the healing. I went down the hall to the bathroom to wash my face and brush my hair. When I got back to my room, I slipped on my favorite pajamas, and the feel of soft flannel cheered me up a little. I was packing my backpack for the next day when a burst of emotion abruptly shot through my bond with Lissa. It caught me unaware and gave me no chance to fight it. It was like being knocked over by a hurricane-force wind, and suddenly, I was no longer looking at my backpack. I was â€Å"inside† Lissa, experiencing her world firsthand. And that’s when things got awkward. Because Lissa was with Christian. And things were getting †¦ hot. How to cite Frostbite Chapter 7, Essay examples

Supply Chain Management of Zara Samples †MyAssignmenthelp.com

Question: Discuss about the Supply Chain Management of Zara. Answer: Introduction Zara has been discerned to be founded in 1975 by Amancio Ortega Gaona. The main store of the company has been seen to be dealing with the various ranges of products of the manufacturing outlet. This was further seen to be the outlet for the cancelled orders for lingerie and night wear for women. The dealing of this has ensured a strong foundation of the association between the retail division and at the manufacturers end. The main priority of Zara has been seen to be done based on the SCM strategy focused on demand for the product and customers (Zara.com 2017). Competitive Analysis of Zara The suggestion on the sustainability and the competitive advantages of Zara has been introduced with the fives forces analysis on the company. The various types of the detailed analysis of the study have revealed a tough competition of the company with various types of the competitors such as Benetton, HMand GAP. It has been further discerned that in 2008, the Inditex contributed the way to reach to the top to be successful as a fashion retailer. The deteriorating economic situation has changed the global perspective of the companys decision. In the recent times the products are having shorter lifespan, with the more unstable as the company is not seen to be based on the glory (Hbner, Kuhn and Sternbeck 2013). The logisticsmanagement of Zara is based on vertical integration and Just-in-time deployment of the operations. The technology of the company has been further seen to be driven by the key success factors. Some of the main form of the collaboration of the company has been observed with the main asks with the strategic use of the organisational resources and the core competencies which has been able to contribute to the core competencies in Zara. Comparison of Dell and Zaras Logistics Management The report has been able to analyse the strategic tools for the application of Logistics Management, Competitive advantage, influence of supply chain and the customer value. The Theoretical framework of the study has been further stated on the Just in Time manufacturing and supply chain pattern which has been related to the various types o the important factors of organizational culture, education, modernization andknowledge management with the disposition of the core competencies of the companies. The business strategy of Zara has been further seen to be considered as per the comparison with Dell and Myers. Both Dell and Zara have been seen to consistent with their performance and the business strategies. It has been further discerned one company is dealing in apparels and the other into manufacturing of computers (Kuhn and Sternbeck 2013). Dells Supply Chain It has been seen that Dell has a consistent with consumer, company and the supplier. It has been further seen that in the first stage the customer is seen to place the order, the second stage is seen with how Dell procures the parts from the supplier and immediate assembly and the final stage has been identified with supply to the customers(lgen and Forslund 2015). Zara Supply Chain The supply chain of Zara has been particularly seen to be dissimilar with one another. Some of the main components of thesupply chian management of the company consist of manufacturing, supply chain functions and facilitation of the distributing outlets. Point of Difference Type of supply chain of Dell Based on the case study it has been identified that Zara follows a vertically integrated supply chain, on the contrary Dell has been seen to follow the horizontal integration of supply chain. Dell has been further seen to be isolated from the production process which is seen to fire third party suppliers for the processing of the various types of the delivery of the finished goods. In compare to the supply chain strategy of Zara, it has been identified that the country is having full control with the different phases of the manufacturing of the garments. It has been further discerned that the company is having complete control for the trading activities from the manufacturing to the delivery process. The full control over the company has further enabled them respond quickly for the changing fashion and the customer preference. This has allowed Zara to issue new designs in a very short span of time. Another important benefit has been further observed with the following of the horizontal supply chain which may considered with the least amount of responsibilities which are shown with the assembly line. On the contrary Dell is needed to coordinate with several numbers of the procedures which has been seen to control the entire process and proceed with the necessary changes which are seen to be simpler process. Both are seen to be correct for the respective organisa tions (Bouzaabia, van Riel and Semeijn 2013). Suppliers The supply chain of Zara follows the integration of vertical supply chain, which is seen to be in charge of over the suppliers. Dell is further observed to control the supply chain process with a total of 15 suppliers whit delivery of more than 85% for the services. Despite of having a number of the suppliers, the accuracy and speed of Dell is seen to be the primary concern of Dell to provide service to their clients. Several risks have been further seen to be involved with the uncertainty and shortage of goods. Some of the risk has been also observed with the delay in the delivery process. However instead of the reduced stocks, Dell has stressed on speedy delivery of the products. This has been further observed to be possible with 95% of the suppliers located close to the manufacturing (Goworek and McGoldrick 2015). Production philosophy Zara has been seen to be keen in introducing new products and designs, thereby launching the same very quickly. The company believes in application of more styles with variety of choices. It has been further discerned that the company launches its product in limited showroom. In some of these stores, it has been identified to receive new products. This strategy has been applicable in making of products exclusively sold out the stock which generates curiosity among the customer and making the next launching of the product demanding in nature. The various strategy of lower quantity has been seen with the limited supply equal to the purchase compulsion. It has been further observed that Zara does not advertise the products as the brand image. The target is customers expectation and the actual product. As product are limited, the customers frequently checks for the new arrivals. Some of the main forms of the products are limited and the customers are seen to frequently visiting the store to check for new arrivals. The clothes are observed to highly demanding in some of the regions and the clothes are seen to be available in the various types of the other region. For example, the eastern countries have a very high amount of demand for the summer clothes, due to the tropical nature of the climate. Whereas in the European countries it has been observed that the demand of the winter clothes are very high due to the cold climate throughout the year. As Europe is recognised as the fashion capital of the world, it can market its product in various types of the other regions in Asia. These types of the philosophy of the production are seen to serve the taste and preference of the customers. Dell has used this theory to make in order products. Dell on the other hand is seen to follow make to order strategy. This strategy has been seen to custom made in a very short period of time from the respective customers made with the customer requirement at a reasonable time. At times the core competencies have been further seen to be leveraged with internet and these incorporate elements from value chain. Dell has bee further identified to customize their products in their website. The products are also seen to be designed as they can be customized easily (De Souza et al. 2016). Storage It has been discerned that Dell has been identified to have a low inventory costs with no extra charge on warehouses. They have been seen to be having 7 hours of inventory instead of 10 days. Some of the other costs have been further observed with the costs like warehouse, direct delivery, supplier storage with the retail storage and with the direct pickup with the cutting costs. Dell has not been seen to be having any policy on the inventory. On the other hand the total number warehouses for the products of Zara are associated to garments, which are circulated effectively (Cullen et al. 2013). Distribution The various types of the concern for the indirect distribution of Dell has included assimilators, suppliers, end customers and retailers. The Business to business model by Dell accounts for 90% of the suppliers order which are procured online. Dell has been further seen to make online orders for its products such as laptops, PC with. This is in between the stages which are removed with the added time and cost. Also the company is directly associated to its clienteles. This further escalates the costs of the Dell. The distribution strategy for the products of Zara is seen with manufacturing site situated in Spain through Corunna Depot which is also known as Zara Logistica. These inventories are not stock and are distributed in the stores of Zara twice every week. The overseas distribution is taken care of by carrying most of the inventory to the border of Spain and the rest is carried over by the Logistics carrier the respective stores. The stores are seen to order more number of stocks from the offers and a commercial manager is responsible for passing his orders to the logistics department was responsible for handling the stock. The stores are seen to be traded at for the sales and model accuracy. This is seen to govern the level of priority for the suppliers orders. In case a product is not selling, it is made sure that the production of such product is stopped immediately. This further implies that no amount of stock shall be stored in the inventory or piling up. This particular process i s able to attract customer preference quickly (Vijayan et al. 2014). Communication Several types of new designs and collections are updated weekly and showcased in the stores. This particular component for this whether a product requires any change or new designs are to be created are not. This particular communication system is not only fast but also observed as a cost efficient process. The main weakness of Dell that bed with lack of foresight related to new international standards. The customers orders are considered as their only feedback. Comparison of Myer with Zara On comparing Zara with Myer it has been discerned that, Myer has made no effort for segmentation of the market along the psychographic lines and demographic lines of customer. It is also not made proper allocation of users of the products whereas Zara has segmented product along the lifestyle and demographic lines of the customer. Zara has been further considered to brand itself a leader in the fashion industry by offering money value. The My Store concept of Myer has a particularly seen to be ambiguous and the target market is very general in nature. Zaras main target group is between 20-35 year age group of young fashion. Whereas the main focus of Myer seen with departmental store which has unsatisfactory customer service. Supply Chain Management Strategy The main focus of the company has been put on strategic SCM concept of occupational achievement and improvement. The strategy is a further identified as the major source of competitive advantage and customer satisfaction. The new model of SCM is focused for handling physical information and products which involve both downstream and upstream customers maximise the value. Just in time policy The Just in Time (JIT) is seen with the pioneer Japanese technology of monitoring inventory. This particular technique eliminates the holding costs, reduces defects and production time. In the recent times JIT is seen to be utilised by most of the manufacturing units along with clean thinking strategy. Zaras competitive advantage In the recent times the World Retail Congress has newly named International Retailer of the Year? to Zara for its best practice in global retail business. It has been further seen to be awarded with maximum score in the stock market index for being the most socially responsible investment. It has importance in the quest for competitive advantage in customer driven market. The new product development line of Zara along with the innovation is recognised by its leadership in the service. The strength of its suppliers is identified as the key to modern-day business ideology (Orcao and Prez 2014). Conclusion In general it can be concluded that the supplies analysis has been able to provide a deep understanding of the Internet value chain. Various types of interpretation of the logistics management concept has been able to focus on its customers technology, vertical integration and customer centric services focused towards higher economies of scale with the parent company. The key success factors of the company have been seen with Inditex. The main inputs of the collaboration, incentive capacity, information, supply chain and in the knowledge management have given significant importance to the success of the organisation. The main mindset of Zaras strategy has been seen in terms of customer centric approach which is never to contribute to gaining of competitive advantage. References BouzaabiaO., van RielA. C. R. and SemeijnJ. (2013) Managing in?store logistics: a fresh perspective on retail service, Journal of Service Management, 24(2), pp. 112129. doi: 10.1108/09564231311323926. CullenJ., TsamenyiM., BernonM. and GorstJ. (2013) Reverse logistics in the UK retail sector: A case study of the role of management accounting in driving organisational change, Management Accounting Research, 24(3), pp. 212227. doi: 10.1016/j.mar.2013.01.002. GoworekH. and McGoldrickP. (2015) Retail Marketing Management, Management. HbnerA. H., KuhnH. and SternbeckM. G. (2013) Demand and supply chain planning in grocery retail: an operations planning framework, International Journal of Retail Distribution Management, 41(7), pp. 512530. doi: 10.1108/IJRDM-05-2013-0104. KuhnH. and SternbeckM. G. (2013) Integrative retail logistics: An exploratory study, Operations Management Research, 6(12), pp. 218. doi: 10.1007/s12063-012-0075-9. OrcaoA. I. E. and PrezD. R. (2014) Global production chains in the fast fashion sector, transports and logistics: The case of the Spanish retailer Inditex, Investigaciones Geograficas, 85, pp. 113127. doi: 10.14350/rig.40002. De SouzaR., LauH. C., GohM., Lindawati, NgW. S. and TanP. S. (2016) Retail Precinct Management: A Case of Commercial Decentralization in Singapore, in Transportation Research Procedia, pp. 765776. doi: 10.1016/j.trpro.2016.02.030. lgenV. S. and ForslundH. (2015) Logistics performance management in textiles supply chains: best-practice and barriers, International Journal of Productivity and Performance Management, 64(1), pp. 5275. doi: 10.1108/IJPPM-01-2013-0019. VijayanG., KamarulzamanN. H., MohamedZ. A. and AbdullahA. M. (2014) Sustainability in food retail industry through reverse logistics, International Journal of Supply Chain Management, 3(2), pp. 1123. Available at: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84949799456partnerID=40md5=a3700bfdaa52b61145db25d1e28f7123. Zara.com. (2017).Company-+ Info | ZARA United States. [online] Available at: https://www.zara.com/us/en/info/company-c11112.html [Accessed 10 Sep. 2017].

Solar Water Purifier free essay sample

BACKGROUND INFORMATION4 STATEMENT OF THE PROBLEM4 Objectives4 Justifications and significance4 Limitations4 Precautions5 Advantages5 CHAPTER 26 Literature review6 CHAPTER 37 Methodology7 Apparatus7 Procedure7 Observations7 CHAPTER 49 DATA ANALYSIS AND INTERPRETATION9 CHAPTER 510 CONCLUSION AND RECOMMENDATION10 REFERENCES10 CHAPTER 1: ABSTRACT BACKGROUND INFORMATION Solar water purifier is a device that purifies water through solar energy. Dirty water is a key link in the cycle of water borne diseases that affects the worlds’ poorest day who would otherwise contribute more to the overall economic and social development. Improved solar water purifier directly impacts on achieving universal education and reducing the rate of mortality. Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids and gases from contaminated water. The goal is to produce water fit for a specific purpose. Most water is purified for human consumption (drinking water), but water purification may also be designed for a variety of other purposes, including meeting the requirements of medical, pharmacological, chemical and industrial applications. We will write a custom essay sample on Solar Water Purifier or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page In general the methods used include physical processes such as filtration, sedimentation, and distillation, biological processes such as slow sand filters or biologically active carbon, chemical processes such as flocculation and chlorination and the use of electromagnetic radiation such as ultraviolet light. The purification process of water may reduce the concentration of particulate matter including suspended particles, parasites, bacteria, algae, viruses, fungi; and a range of dissolved and particulate material derived from the surfaces that water may have made contact with after falling as rain. The standards for drinking water quality are typically set by governments or by international standards. These standards will typically set minimum and maximum concentrations of contaminants for the use that is to be made of the water. It is not possible to tell whether water is of an appropriate quality by visual examination. Simple procedures such as boiling or the use of a household activated carbon filter are not sufficient for treating all the possible contaminants that may be present in water from an unknown source. Even natural spring water – considered safe for all practical purposes in the 19th century – must now be tested before determining what kind of treatment, if any, is needed. Chemical and microbiological analysis, while expensive, are the only way to obtain the information necessary for deciding on the appropriate method of purification. According to a 2007 World Health Organization (WHO) report, 1. 1 billion people lack access to an improved drinking water supply, 88 percent of the 4 billion annual cases of diarrheal disease are attributed to unsafe water and inadequate sanitation and hygiene, and 1. million people die from diarrheal diseases each year. The WHO estimates that 94 percent of these diarrheal cases are preventable through modifications to the environment, including access to safe water. [1] Simple techniques for treating water at home, such as chlorination, filters, and solar disinfection, and storing it in safe containers could save a huge number of lives each year. [2] Reducing deaths from waterborne diseases is a major public health goal in developing countries. STATEMENT OF THE PROBLEM The rate at which flooding occurs especially this season is rising at an alarming rate . Places such as Kano plains, Tana river , Budalangi are experiencing high levels of flooding. The water from floods may come across open sewerages, decaying organism and garbage which contaminate water sources. Such water is not healthy for human consumption. Approximately 1. 8 million people die due to diarrhoeal diseases such as cholera every year. Access to clean water is one of the global issues affecting the world and will continue to be so, as demand increases. Objectives 1 . Reduce intake and usage of dirty water domestically. 2. Reduce the number of medical cases brought about by intake of dirty water. 3. Introduction of a method of water purification which requires less human labour and its environment friendly. 4. To put an end to usage of chemicals in water purification which maybe a health hazard. Justifications and significance 1. It enables Kenyans to use clean water and minimize the medical cases brought about by dirty water. 2. It minimizes the rate at which people die due to water borne diseases. Limitations 1. It can’t work when the saturation deficit is low in the atmosphere. . It tends to be slow. 3. It is not portable. Precautions 1. It should be handled with care as it tends to be delicate. Advantages 1. It continues to work when sun rays are cut off because the black coating tends to lose heat at a lower intensity which can’t penetrate through the glass thus heat is retained. 2. Energy is readily available and renewable which is the sun. 3. The materials that are used to build it are locally available and at an affordable cost. 4. Its efficient and healthy as the water is purified at the end of the process. 5. Its environmental friendly as it doesn’t pollute the environment 6. It is ideal for the arid and semi –arid areas where there are high temperatures. CHAPTER 2 Literature review Sources of water Further information: Water supply 1. Groundwater: The water emerging from some deep ground water may have fallen as rain many tens, hundreds, or thousands of years ago. Soil and rock layers naturally filter the ground water to a high degree of clarity and often it does not require additional treatment other than adding chlorine or chloramines as secondary disinfectants. Such water may emerge as springs, artesian springs, or may be extracted from boreholes or wells. Deep ground water is generally of very high bacteriological quality (i. e. , pathogenic bacteria or the pathogenic protozoa are typically absent), but the water may be rich in dissolved solids, especially carbonates and sulfates of calcium and magnesium. Depending on the strata through which the water has flowed, other ions may also be present including chloride, and bicarbonate. There may be a requirement to reduce the iron or manganese content of this water to make it acceptable for drinking, cooking, and laundry use. Primary disinfection may also be required. Where groundwater recharge is practised (a process in which river water is injected into an aquifer to store the water in times of plenty so that it is available in times of drought), the groundwater may require additional treatment depending on applicable state and federal regulations. 2. Upland lakes and reservoirs: Typically located in the headwaters of river systems, upland reservoirs are usually sited above any human habitation and may be surrounded by a protective zone to restrict the opportunities for contamination. Bacteria and pathogen levels are usually low, but some bacteria, protozoa or algae will be present. Where uplands are forested or peaty, humic acids can colour the water. Many upland sources have low pH which require adjustment. 3. Rivers, canals and low land reservoirs: Low land surface waters will have a significant bacterial load and may also contain algae, suspended solids and a variety of dissolved constituents. 4. Atmospheric water generation is a new technology that can provide high quality drinking water by extracting water from the air by cooling the air and thus condensing water vapor. . Rainwater harvesting or fog collection which collects water from the atmosphere can be used especially in areas with significant dry seasons and in areas which experience fog even when there is little rain. 6. Desalination of seawater by distillation or reverse osmosis. 7. Surface Water: Freshwater bodies that are open to the atmosphere and are not designated as groundwater are classified i n the USA for regulatory and water purification purposes as surface water. Treatment The processes below are the ones commonly used in water purification plants. Some or most may not be used depending on the scale of the plant and quality of the raw (source) water. Pre-treatment 1. Pumping and containment – The majority of water must be pumped from its source or directed into pipes or holding tanks. To avoid adding contaminants to the water, this physical infrastructure must be made from appropriate materials and constructed so that accidental contamination does not occur. 2. Screening (see also screen filter) – The first step in purifying surface water is to remove large debris such as sticks, leaves, rubbish and other large particles which may interfere with subsequent purification steps. Most deep groundwater does not need screening before other purification steps. 3. Storage – Water from rivers may also be stored in backside reservoirs for periods between a few days and many months to allow natural biological purification to take place. This is especially important if treatment is by slow sand filters. Storage reservoirs also provide a buffer against short periods of drought or to allow water supply to be maintained during transitory pollution incidents in the source river. 4. Pre-chlorination – In many plants the incoming water was chlorinated to minimize the growth of fouling organisms on the pipe-work and tanks. Because of the potential adverse quality effects (see chlorine below), this has largely been discontinued. Widely varied techniques are available to remove the fine solids, micro-organisms and some dissolved inorganic and organic materials. The choice of method will depend on the quality of the water being treated, the cost of the treatment process and the quality standards expected of the processed water. H adjustment Pure water has a pH close to 7 (neither alkaline nor acidic). Sea water can have pH values that range from 7. 5 to 8. 4 (moderately alkaline). Fresh water can have widely ranging pH values depending on the geology of the drainage basin or aquifer and the influence of contaminant inputs (acid rain). If the water is acidic (lower than 7), lime, soda ash, or sodium hydroxide can be added to raise the pH during water purificati on processes. Lime addition increases the calcium ion concentration, thus raising the water hardness. For highly acidic waters, forced draft degasifiers can be an effective way to raise the pH, by stripping dissolved carbon dioxide from the water. Making the water alkaline helps coagulation and flocculation processes work effectively and also helps to minimize the risk of lead being dissolved from lead pipes and from lead solder in pipe fittings. Sufficient alkalinity also reduces the corrosiveness of water to iron pipes. Acid ( carbonic acid, hydrochloric acid or sulfuric acid) may be added to alkaline waters in some circumstances to lower the pH. Alkaline water (above pH 7. 0) does not necessarily mean that lead or copper from the plumbing system will not be dissolved into the water. The ability of water to precipitate calcium carbonate to protect metal surfaces and reduce the likelihood of toxic metals being dissolved in water is a function of pH, mineral content, temperature, alkalinity and calcium concentration. Coagulation and flocculation One of the first steps in a conventional water purification process is the addition of chemicals to assist in the removal of particles suspended in water. Particles can be inorganic such as clay and silt or organic such as algae, bacteria, viruses, protozoa and natural organic matter. Inorganic and organic particles contribute to the turbidity and colour of water. The addition of inorganic coagulants such as aluminum sulfate (or alum) or iron (III) salts such as iron(III) chloride cause several simultaneous chemical and physical interactions on and among the particles. Within seconds, negative charges on the particles are neutralized by inorganic coagulants. Also within seconds, metal hydroxide precipitates of the aluminum and iron (III) ions begin to form. These precipitates combine into larger particles under natural processes such as Brownian motion and through induced mixing which is sometimes referred to as flocculation. The term most often used for the amorphous metal hydroxides is â€Å"floc. † Large, amorphous aluminum and iron (III) hydroxides adsorb and enmesh particles in suspension and facilitate the removal of particles by subsequent processes of sedimentation and filtration. Aluminum hydroxides are formed within a fairly narrow range, typically: 5. 5 to about 7. 7. Iron (III) hydroxides can form over a larger pH range including pH levels lower than are effective for alum, typically: 5. 0 to 8. 5. In the literature, there is much debate and confusion over the usage of the terms coagulation and flocculation—where does coagulation end and flocculation begin? In water purification plants, there is usually a high energy, rapid mix unit process (detention time in seconds) where the coagulant chemicals are added followed by flocculation basins (detention times range from 15 to 45 minutes) where low energy inputs turn large paddles or other gentle mixing devices to enhance the formation of floc. In fact, coagulation and flocculation processes are ongoing once the metal salt coagulants are added. [10]:74-5 Organic polymers were developed in the 1960s as aids to coagulants and, in some cases, as replacements for the inorganic metal salt coagulants. Synthetic organic polymers are high molecular weight compounds that carry negative, positive or neutral charges. When organic polymers are added to water with particulates, the high molecular weight compounds adsorb onto particle surfaces and through antiparticle bridging coalesce with other particles to form floc. PolyDADMAC is a popular cationic (positively charged) organic polymer used in water purification plants. [9]:667-8 Sedimentation Waters exiting the flocculation basin may enter the sedimentation basin, also called a clarifier or settling basin. It is a large tank with low water velocities, allowing floc to settle to the bottom. The sedimentation basin is best located close to the flocculation basin so the transit between the two processes does not permit settlement or floc break up. Sedimentation basins may be rectangular, where water flows from end to end, or circular where flow is from the centre outward. Sedimentation basin outflow is typically over a weir so only a thin top layer of water—that furthest from the sludge—exits. In 1904, Allen Hazen showed that the efficiency of a sedimentation process was a function of the particle settling velocity, the flow through the tank and the surface area of tank. Sedimentation tanks are typically designed within a range of overflow rates of 0. 5 to 1. 0 gallons per minute per square foot (or 1. 25 to 2. 5 meters per hour). In general, sedimentation basin efficiency is not a function of detention time or depth of the basin. Although, basin depth must be sufficient so that water currents do not disturb the sludge and settled particle interactions are promoted. As particle concentrations in the settled water increase near the sludge surface on the bottom of the tank, settling velocities can increase due to collisions and agglomeration of particles. Typical detention times for sedimentation vary from 1. 5 to 4 hours and basin depths vary from 10 to 15 feet (3 to 4. 5 meters). [8]:9. 39-9. 40[9]:790-1[10]:140-2, 171 Inclined flat plates or tubes can be added to traditional sedimentation basins to improve particle removal performance. Inclined plates and tubes drastically increase the surface area available for particles to be removed in concert with Hazen’s original theory. The amount of ground surface area occupied by a sedimentation basin with inclined plates or tubes can be far smaller than a conventional sedimentation basin. Sludge storage and removal As particles settle to the bottom of a sedimentation basin, a layer of sludge is formed on the floor of the tank. This layer of sludge must be removed and treated. The amount of sludge that is generated is significant, often 3 to 5 percent of the total volume of water that is treated. The cost of treating and disposing of the sludge can be a significant part of the operating cost of a water treatment plant. The sedimentation tank may be equipped with mechanical cleaning devices that continually clean the bottom of the tank or the tank can be periodically taken out of service and cleaned manually. Floc blanket clarifiers A subcategory of sedimentation is the removal of particulates by entrapment in a layer of suspended floc as the water is forced upward. The major advantage of floc blanket clarifiers is that they occupy a smaller footprint than conventional sedimentation. Disadvantages are that particle removal efficiency can be highly variable depending on changes in influent water quality and influent water flow rate. [9]:835-6 Dissolved air flotation When particles to be removed do not settle out of solution easily, dissolved air flotation (DAF) is often used. Water supplies that are particularly vulnerable to unicellular algae blooms and supplies with low turbidity and high colour often employ DAF. After coagulation and flocculation processes, water flows to DAF tanks where air diffusers on the tank bottom create fine bubbles that attach to floc resulting in a floating mass of concentrated floc. The floating floc blanket is removed from the surface and clarified water is withdrawn from the bottom of the DAF tank. [8]:9. 46 Filtration After separating most floc, the water is filtered as the final step to remove remaining suspended particles and unsettled floc. Rapid sand filters Cutaway view of a typical rapid sand filter The most common type of filter is a rapid sand filter. Water moves vertically through sand which often has a layer of activated carbon or anthracite coal above the sand. The top layer removes organic compounds, which contribute to taste and odour. The space between sand particles is larger than the smallest suspended particles, so simple filtration is not enough. Most particles pass through surface layers but are trapped in pore spaces or adhere to sand particles. Effective filtration extends into the depth of the filter. This property of the filter is key to its operation: if the top layer of sand were to block all the particles, the filter would quickly clog. [11] To clean the filter, water is passed quickly upward through the filter, opposite the normal direction (called backflushing or backwashing) to remove embedded particles. Prior to this step, compressed air may be blown up through the bottom of the filter to break up the compacted filter media to aid the backwashing process; this is known as air scouring. This contaminated water can be disposed of, along with the sludge from the sedimentation basin, or it can be recycled by mixing with the raw water entering the plant although this is often considered poor practice since it re-introduces an elevated concentration of bacteria into the raw water Some water treatment plants employ pressure filters. These work on the same principle as rapid gravity filters, differing in that the filter medium is enclosed in a steel vessel and the water is forced through it under pressure. Advantages: †¢Filters out much smaller particles than paper and sand filters can. †¢Filters out virtually all particles larger than their specified pore sizes. †¢They are quite thin and so liquids flow through them fairly rapidly. †¢They are reasonably strong and so can withstand pressure differences across them of typically 2–5 atmospheres. †¢They can be cleaned (back flushed) and reused. Slow sand filters Slow artificial filtration (a variation of bank filtration) to the ground, Water purification plant Karany, Czech Republic Slow sand filters may be used where there is sufficient land and space, as the water must be passed very slowly through the filters. These filters rely on biological treatment processes for their action rather than physical filtration. The filters are carefully constructed using graded layers of sand, with the coarsest sand, along with some gravel, at the bottom and finest sand at the top. Drains at the base convey treated water away for disinfection. Filtration depends on the development of a thin biological layer, called the zoogleal layer or Schmutzdecke, on the surface of the filter. An effective slow sand filter may remain in service for many weeks or even months if the pre-treatment is well designed and produces water with a very low available nutrient level which physical methods of treatment rarely achieve. Very low nutrient levels allow water to be safely sent through distribution systems with very low disinfectant levels, thereby reducing consumer irritation over offensive levels of chlorine and chlorine by-products. Slow sand filters are not backwashed; they are maintained by having the top layer of sand scraped off when flow is eventually obstructed by biological growth. [citation needed] A specific large-scale form of slow sand filter is the process of bank filtration, in which natural sediments in a riverbank are used to provide a first stage of contaminant filtration. While typically not clean enough to be used directly for drinking water, the water gained from the associated extraction wells is much less problematic than river water taken directly from the major streams where bank filtration is often used. Membrane filtration Membrane filters are widely used for filtering both drinking water and sewage. For drinking water, membrane filters can remove virtually all particles larger than 0. 2 um—including giardia and cryptosporidium. Membrane filters are an effective form of tertiary treatment when it is desired to reuse the water for industry, for limited domestic purposes, or before discharging the water into a river that is used by towns further downstream. They are widely used in industry, particularly for beverage preparation (including bottled water). However no filtration can remove substances that re actually dissolved in the water such as phosphorus, nitrates and heavy metal ions. Removal of ions and other dissolved substances Ultrafiltration membranes use polymer membranes with chemically formed microscopic pores that can be used to filter out dissolved substances avoiding the use of coagulants. The type of membrane media determines how much pressure is needed to drive t he water through and what sizes of micro-organisms can be filtered out. Ion exchange:[12] Ion exchange systems use ion exchange resin- or zeolite-packed columns to replace unwanted ions. The most common case is water softening consisting of removal of Ca2+ and Mg2+ ions replacing them with benign (soap friendly) Na+ or K+ ions. Ion exchange resins are also used to remove toxic ions such as nitrate, nitrite, lead, mercury, arsenic and many others. Precipitative softening:[8]:13. 12-13. 58 Water rich in hardness (calcium and magnesium ions) is treated with lime (calcium oxide) and/or soda-ash (sodium carbonate) to precipitate calcium carbonate out of solution utilizing the common-ion effect. Electrodeionization:[12] Water is passed between a positive electrode and a negative electrode. Ion exchange membranes allow only positive ions to migrate from the treated water toward the negative electrode and only negative ions toward the positive electrode. High purity deionized water is produced with a little worse degree of purification in comparison with ion exchange treatment. Complete removal of ions from water is regarded as electrodialysis. The water is often pre-treated with a reverse osmosis unit to remove non-ionic organic contaminants. Disinfection Disinfection is accomplished both by filtering out harmful micro-organisms and also by adding disinfectant chemicals. Water is disinfected to kill any pathogens which pass through the filters and to provide a residual dose of disinfectant to kill or inactivate potentially harmful micro-organisms in the storage and distribution systems. Possible pathogens include viruses, bacteria, including Salmonella, Cholera, Campylobacter and Shigella, and protozoa, including Giardia lamblia and other cryptosporidia. Following the introduction of any chemical disinfecting agent, the water is usually held in temporary storage – often called a contact tank or clear well to allow the disinfecting action to complete. Chlorine disinfection Main article: Water chlorination The most common disinfection method involves some form of chlorine or its compounds such as chloramine or chlorine dioxide. Chlorine is a strong oxidant that rapidly kills many harmful micro-organisms. Because chlorine is a toxic gas, there is a danger of a release associated with its use. This problem is avoided by the use of sodium hypochlorite, which is a relatively inexpensive solution that releases free chlorine when dissolved in water. Chlorine solutions can be generated on site by electrolyzing common salt solutions. A solid form, calcium hypochlorite, releases chlorine on contact with water. Handling the solid, however, requires greater routine human contact through opening bags and pouring than the use of gas cylinders or bleach which are more easily automated. The generation of liquid sodium hypochlorite is both inexpensive and safer than the use of gas or solid chlorine. All forms of chlorine are widely used, despite their respective drawbacks. One drawback is that chlorine from any source reacts with natural organic compounds in the water to form potentially harmful chemical by-products. These by-products, trihalomethanes (THMs) and haloacetic acids (HAAs), are both carcinogenic in large quantities and are regulated by the United States Environmental Protection Agency (EPA) and the Drinking Water Inspectorate in the UK. The formation of THMs and haloacetic acids may be minimized by effective removal of as many organics from the water as possible prior to chlorine addition. Although chlorine is effective in killing bacteria, it has limited effectiveness against protozoa that form cysts in water (Giardia lamblia and Cryptosporidium, both of which are pathogenic). Chlorine dioxide disinfection Chlorine dioxide is a faster-acting disinfectant than elemental chlorine, however it is relatively rarely used, because in some circumstances it may create excessive amounts of chlorite, which is a by-product regulated to low allowable levels in the United States. Chlorine dioxide is supplied as an aqueous solution and added to water to avoid gas handling problems; chlorine dioxide gas accumulations may spontaneously detonate. Chloramine disinfection The use of chloramine is becoming more common as a disinfectant. Although chloramine is not as strong an oxidant, it does provide a longer-lasting residual than free chlorine and it wont form THMs or haloacetic acids. It is possible to convert chlorine to chloramine by adding ammonia to the water after addition of chlorine. The chlorine and ammonia react to form chloramine. Water distribution systems disinfected with chloramines may experience nitrification, as ammonia is a nutrient for bacterial growth, with nitrates being generated as a by-product. Ozone disinfection Ozone is an unstable molecule which readily gives up one atom of oxygen providing a powerful oxidizing agent which is toxic to most waterborne organisms. It is a very strong, broad spectrum disinfectant that is widely used in Europe. It is an effective method to inactivate harmful protozoa that form cysts. It also works well against almost all other pathogens. Ozone is made by passing oxygen through ultraviolet light or a cold electrical discharge. To use ozone as a disinfectant, it must be created on-site and added to the water by bubble contact. Some of the advantages of ozone include the production of fewer dangerous by-products and the absence of taste and odour problems (in comparison to chlorination) . Although fewer by-products are formed by ozonation, it has been discovered that ozone reacts with bromide ions in water to produces concentrations of the suspected carcinogen bromate. Bromide can be found in fresh water supplies in sufficient concentrations to produce (after ozonation) more than 10 ppb of bromate — the maximum contaminant level established by the USEPA. [13] Another advantage of ozone is that it leaves no residual disinfectant in the water. Ozone has been used in drinking water plants since 1906 where the first industrial ozonation plant was built in Nice, France. The U. S. Food and Drug Administration has accepted ozone as being safe; and it is applied as an anti-microbiological agent for the treatment, storage, and processing of foods. Ultraviolet disinfection Ultraviolet light (UV) is very effective at inactivating cysts, in low turbidity water. UV lights disinfection effectiveness decreases as turbidity increases, a result of the absorption, scattering, and shadowing caused by the suspended solids. The main disadvantage to the use of UV radiation is that, like ozone treatment, it leaves no residual disinfectant in the water; therefore, it is sometimes necessary to add a residual disinfectant after the primary disinfection process. This is often done through the addition of chloramines, discussed above as a primary disinfectant. When used in this manner, chloramines provide an effective residual disinfectant with very few of the negative aspects of chlorination. Various portable methods of disinfection Main article: Portable water purification Available for disinfection in emergencies or in remote locations. Disinfection is the primary goal, since aesthetic considerations such as taste, odor, appearance, and trace chemical contamination do not affect the short-term safety of drinking water. Solar water disinfection One low-cost method of disinfecting water that can often be implemented with locally available materials is solar disinfection (SODIS). [14][15][16][17] [18] Unlike methods that rely on firewood, it has low impact on the environment. One recent study has found that the wild Salmonella which would reproduce quickly during subsequent dark storage of solar-disinfected water could be controlled by the addition of just 10 parts per million of hydrogen peroxide. [19] Additional treatment options 1. Water fluoridation: in many areas fluoride is added to water with the goal of preventing tooth decay. Fluoride is usually added after the disinfection process. In the U. S. , fluoridation is usually accomplished by the addition of hexafluorosilicic acid, which decomposes in water, yielding fluoride ions. 2. Water conditioning: This is a method of reducing the effects of hard water. In water systems subject to heating hardness salts can be deposited as the decomposition of bicarbonate ions creates carbonate ions that precipitate out of solution. Water with high concentrations of hardness salts can be treated with soda ash (sodium carbonate) which precipitates out the excess salts, through the common-ion effect, producing calcium carbonate of very high purity. The precipitated calcium carbonate is traditionally sold to the manufacturers of toothpaste. Several other methods of industrial and residential water treatment are claimed (without general scientific cceptance) to include the use of magnetic and/or electrical fields reducing the effects of hard water. ] 3. Plumbosolvency reduction: In areas with naturally acidic waters of low conductivity (i. e. surface rainfall in upland mountains of igneous rocks), the water may be capable of dissolving lead from any lead pipes that it is carried in. The addition of small quantities of phosphate ion and increasing the pH slightly both assist in greatly reducing plumbo-solvency by creating insoluble lead salts on the inner surfaces of the pipes. 4. Radium Removal: Some groundwater sources contain radium, a radioactive chemical element. Typical sources include many groundwater sources north of the Illinois River in Illinois. Radium can be removed by ion exchange, or by water conditioning. The back flush or sludge that is produced is, however, a low-level radioactive waste. 5. Fluoride Removal: Although fluoride is added to water in many areas, some areas of the world have excessive levels of natural fluoride in the source water. Excessive levels can be toxic or cause undesirable cosmetic effects such as staining of teeth. Methods of reducing fluoride levels is through treatment with activated alumina and bone char filter media. Other water purification techniques Other popular methods for purifying water, especially for local private supplies are listed below. In some countries some of these methods are also used for large scale municipal supplies. Particularly important are distillation (de-salination of seawater) and reverse osmosis. 1. Boiling: Water is heated hot enough and long enough to inactivate or kill micro-organisms that normally live in water at room temperature. Near sea level, a vigorous rolling boil for at least one minute is sufficient. At high altitudes (greater than two kilometres or 5000 feet) three minutes is recommended. 23] In areas where the water is hard (that is, containing significant dissolved calcium salts), boiling decomposes the bicarbonate ions, resulting in partial precipitation as calcium carbonate. This is the fur that builds up on kettle elements, etc. , in hard water areas. With the exception of calcium, boiling does not remove solutes of higher boiling point than water a nd in fact increases their concentration (due to some water being lost as vapour). Boiling does not leave a residual disinfectant in the water. Therefore, water that is boiled and then stored for any length of time may acquire new pathogens. . Granular Activated Carbon filtering: a form of activated carbon with a high surface area, adsorbs many compounds including many toxic compounds. Water passing through activated carbon is commonly used in municipal regions with organic contamination, taste or odors. Many household water filters and fish tanks use activated carbon filters to further purify the water. Household filters for drinking water sometimes contain silver as metallic silver nanoparticle. If water is held in the carbon block for longer period, microorganisms can grow inside which results in fouling and contamination. Silver nanoparticles are excellent anti-bacterial material and they can decompose toxic halo-organic compounds such as pesticides into non-toxic organic products. [24] 3. Distillation involves boiling the water to produce water vapour. The vapour contacts a cool surface where it condenses as a liquid. Because the solutes are not normally vaporised, they remain in the boiling solution. Even distillation does not completely purify water, because of contaminants with similar boiling points and droplets of unvapourised liquid carried with the steam. However, 99. 9% pure water can be obtained by distillation. 4. Reverse osmosis: Mechanical pressure is applied to an impure solution to force pure water through a semi-permeable membrane. Reverse osmosis is theoretically the most thorough method of large scale water purification available, although perfect semi-permeable membranes are difficult to create. Unless membranes are well-maintained, algae and other life forms can colonize the membranes. 5. The use of iron in removing arsenic from water. See Arsenic contamination of groundwater. 6. Direct Contact Membrane Distillation (DCMD). Applicable to desalination. Heated seawater is passed along the surface of a hydrophobic polymer membrane. Evaporated water passes from the hot side through pores in the membrane into a stream of cold pure water on the other side. The difference in vapour pressure between the hot and cold side helps to push water molecules through. 7. Desalination is a process by which saline water (generally sea water) is converted to fresh water. The most common desalination processes are distillation and reverse osmosis. Desalination is currently expensive compared to most alternative sources of water, and only a very small fraction of total human use is satisfied by desalination. It is only economically practical for high-valued uses (such as household and industrial uses) in arid areas. 8. Gas hydrate crystals centrifuge method. If carbon dioxide or other low molecular weight gas is mixed with contaminated water at high pressure and low temperature, gas hydrate crystals will form exothermically. Separation of the crystalline hydrate may be performed by centrifuge or sedimentation and decanting. Water can be released from the hydrate crystals by heating[25] 9. In Situ Chemical Oxidation, a form of advanced oxidation processes and advanced oxidation technology is an environmental remediation technique used for soil and/or groundwater remediation to reduce the concentrations of targeted environmental contaminants to acceptable levels. ISCO is accomplished by injecting or otherwise introducing strong chemical oxidizers directly into the contaminated medium (soil or groundwater) to destroy chemical contaminants in place. It can be used to remediate a variety of organic compounds, including some that are resistant to natural degradation 10. Water Purification with Moringa Seeds Crushed Moringa seeds clarify and purify water to suit domestic use and lower the bacterial concentration in the water making it safe for drinking. Moringa seed powder can be used as a quick and simple method for cleaning dirty river water. Studies showed that this simple method of filtering not only diminishes water pollution, but also harmful bacteria. The moringa powder joins with the solids in the water and sinks to the bottom. This treatment also removes 90-99% of bacteria contained in water. [26] Demineralized water Distillation removes all minerals from water, and the membrane methods of reverse osmosis and nanofiltration remove most to all minerals. This results in demineralized water which is not considered ideal drinking water. The World Health Organization has investigated the health effects of demineralized water since 1980. [29] Experiments in humans found that demineralized water increased diuresis and the elimination of electrolytes, with decreased blood serum potassium concentration. Magnesium, calcium, and other minerals in water can help to protect against nutritional deficiency. Demineralized water may also increase the risk from toxic metals because it more readily leaches materials from piping like lead and cadmium, which is prevented by dissolved minerals such as calcium and magnesium. Low-mineral water has been implicated in specific cases of lead poisoning in infants, when lead from pipes leached at especially high rates into the water. Recommendations for magnesium have been put at a minimum of 10 mg/L with 20–30 mg/L optimum; for calcium a 20 mg/L minimum and a 40–80 mg/L optimum, and a total water hardness (adding magnesium and calcium) of 2 to 4 mmol/L. At water hardness above 5 mmol/L, higher incidence of gallstones, kidney stones, urinary stones, arthrosis, and arthropathies have been observed. [30] Additionally, desalination processes can increase the risk of bacterial contamination. [30] Manufacturers of home water distillers claim the opposite—that minerals in water are the cause of many diseases, and that most beneficial minerals come from food, not water. [31][32] They quote the American Medical Association as saying The bodys need for minerals is largely met through foods, not drinking water. The WHO report agrees that drinking water, with some rare exceptions, is not the major source of essential elements for humans and is not the major source of our calcium and magnesium intake, yet states that demineralized water is harmful anyway. Additional evidence comes from animal experiments and clinical observations in several countries. Animals given zinc or magnesium dosed in their drinking water had a significantly higher concentration of these elements in the serum than animals given the same elements in much higher amounts with food and provided with low-mineral water to drink. The solar water purifier ‘the best invention of the year’ enables users to drink water safely from contaminated water sources. It’s ideal for home owners during emergencies such as local flooding which can contaminate drinking water supplies. It is also ideal for campers and hikers who may be drinking from rivers or lakes; it is also ideal for travelers who don’t want to rely on the quality of local water. CHAPTER 3: Methodology Apparatus -Glass window. -Containers (3). -Charcoal. -Stands. Procedure Take a container A, pour dirty water and hang two pieces of cloth at its side ith their bases in contact with the water. The container should be raised 1metre above the ground. From the container A, a pipe should be leading to another container B containing charcoal. The whole part containing the tray with charcoal should have a black coating and be covered by a glass window . Lastly place container B at the end to collect the pure water. Observations The resulting water is clear. Water droplets were observed on the glass window. DATA It has been noticed there’s a high percentage of death due to dirty water . As stated earlier on, dirty water is a key link in the cycle of water borne diseases. 97 % of water in this world is salty sea water, 0. 07% retained water and 2. 23% is usable fresh water. The small percentage of water left is contaminated daily. The 97% of withheld water can be purified through the solar water purifier to solve strategies on lack of access of clean water. Approximately 1. 8 million people die due dirty water intake CHAPTER 4 DATA ANALYSIS AND INTERPRETATION 41% of 39. 8 million Kenyans do not have access to clean water. In 2008, only 59% of all Kenyans had access to safe water. 1 The 2006 drought in Kenya was declared a national disaster, as 3. 5 million people faced starvation and food shortages. 5 Droughts continue to plague the region. Beyond the threat of drought-induced food scarcity, 10% of deaths in Kenya occur from water-borne or sanitation-related diseases. 6 DATA SHOWING KEY STATISTICS IN THE WATER SECTOR IN KENYA PERCENTAGEDESCRIPTION 41%The number of people who do not have access to clean water 59%Have access to clean water 0%The percentage of land in Kenya that is arid and semi- arid 10%Percentage of deaths in Kenya caused by water and sanitation-related diseases SOURCES Ministry of water and sanitation http://www. quietway. org/water-for-kenya/ CHAPTER 5 CONCLUSION AND RECOMMENDATION As stated earlier, the solar water purifier is healthy and efficient as the end product is pure. The materials used to construct it are locally available and it requires less human labour to construct it. Besides it is environment friendly as it does not pollute the environment in any way. It is also advisable to use it in purification of tap water as it may contain lead due to metallic pipes. We would like to recommend that the solar water purifier should be used in places such as slums, arid areas, flooding areas, by campers and tourists who do not rely on local water. This will reduce the rate of medical cases linked with water borne diseases, not to forget the rising death rates. We recommend that the government should distribute the solar water purifier to the less privileged as that will aid them. REFERENCES F. A. ABOTT , ADVANCE LEVEL PHYSICS 1999, LONDON www. wikipedia. com www. deka. org/water purification

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