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. In general the methods used include physical processes such
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Hi‚ my name is water molecule! H2O for short. I live in the bottom of a well. I come from 2 hydrogen atoms‚ but I have an oxygen atom in me! Down here in my well‚ we have a swell time together. In our liquid state‚ we are not too far apart‚ nor too packed together. It’s really great being a liquid! I feel bad for my cousin CO2. He is probably sublimating into a gas from a solid‚ or as a gas‚ freezing back into a solid. He has no melting point‚ only a freezing and boiling point. I’m SO glad I will
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Have you ever dropped oil on your hands and tried to wash it off? What happens? Does the water slide off? Or what about when a drop of oil falls in a glass of water? Why does it float to the surface‚ and not mix? The answer to this is simple: polarity. What exactly is polarity? A polar bond is when there is a difference in electronegativity‚ which means the tendency of an atom to attract a bonding pair of electrons. When two atoms are bonded together and one attracts more electrons‚ this results
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The Biological Importance of Water! The ultimate importance of water is none other than the fact that life cannot exist without it. Water being the major component of our body cells‚ typically making 70-95% of it‚ constructs the body mass with approximately 80% being water. Humans are not the only ones who contain the valued material but other creatures like the jellyfish hold 96% of water as their body mass. The structure of the water molecules enables it to have extreme properties that are
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reaction temperature by hot product stream. The product stream is cooled to –100 C and in doing it‚ all unreacted ethanol and acetaldehyde are condensed. The out going gaseous stream‚ containing hydrogen mainly‚ is scrubbed with dilute alcohol (alcohol + water) to remove uncondensed products and the undissolved gas. The remaining pure hydrogen (98%) is burnt in stack. The material and energy balance in a plant design is necessary because this fixes the relative flow rates of different flow streams and temperatures
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Results 1. We cannot tolerate children dying for a glass of water The Guardian (London) - Final Edition‚ March 8‚ 2006 Wednesday‚ COMMENT; Pg. 32‚ 923 words‚ Kevin Watkins Return to List 1 of 1 DOCUMENT The Guardian (London) - Final Edition March 8‚ 2006 Wednesday We cannot tolerate children dying for a glass of water BYLINE: Kevin Watkins SECTION: COMMENT; Pg. 32 LENGTH: 923 words The rich world must act to prevent dirty water and poor sanitation now killing more than a million children
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Justin Davis Period 1 9/24/2012 The Bunsen Burner and Boiling Water The Bunsen Burner is a piece of laboratory equipment that produces a single flame which is used for heating‚ sterilizing‚ and combustion. The gas used in Bunsen burners can be natural gas like methane‚ or propane‚ butane‚ or a mixture of both which are all liquefied petroleum gas. The Bunsen burner was named after a man named Robert Bunsen. In 1855 Robert Bunsen invited the Bunsen burner and it is now used all over the world
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What my project is about: I will be comparing results from water testing I did at two different water bodies to prove that the catchment area has an influence over the water quality in the different water bodies. The first water body I tested was the small dam in the bokkie park situated in between residential areas and in the middle of a piece of land solely used for animals. The second water body I tested was the small dam across the road from the Trinity Church in Boksburg on Rondebult Road‚ which
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The principles and practice of controlling water activity via heat transfer. Darren Olive – 06067578 Year 4 module towards the award of BSc (Hons) degree in food manufacturing. FDT 3001M – Technical Management. Submitted: 5th May 2014 Tutor: Mrs Lindi Tizi Extension code: MJS2013101 Contents Page 1. Introduction 3 2. Process operation that controls the water activity 3 3. Heat transfer. 5 4. Impact on nutritional and organoleptic qualities. 8 5. Reference
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Water Pollution Water – The Elixir of Life Can you imagine life without water? Take a minute and think about it. We need water for all our daily essential activities – drinking‚ bathing‚ cleaning… In fact‚ every living thing on this planet needs water Water pollution And what do we do with this vital resource? We take its all important ability – we all know that water can dissolve many of the thing that we dump in it – to make it a giant rubbish bin. In fact‚ we even throw things
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