Flashcards
water treatment processes
Cards in this deck (10)
- 1sedimentationProcess: water left static
Purpose: removal of suspended solids - 2screensProcess: metals grills trap larger floating objects
Purpose: remove larger floating objects e.g vegetation and litter - 3aerationProcess: Bubbles of oxygen or water sprays added
Purpose: remove bad smells or tastes - 4FlocculaionProcess: Adding of coagulants e.g aluminium sulfate
Purpose: remove surface charge of clay particles, allowing them to settle - 5FiltrationProcess: Adding slow flow through layers of sand and gravel
Purpose: Removal of remaining suspended solids and bacteria - 6Active carbon filterProcess: adding of particles of active carbon
Purpose: Removal of pesticides and other organic chemicals - 7SterilistationProcess: adding of chlorine, ozone or UV exposure
Purpose: sterilize water, kill pathogens - 8FluoridationProcess: Fluorides added to the water
Purpose: improve dental health - 9Reverse OsmosisProcess: saline water filtered at very high pressure through partially permeable membranes of small poly amide tubes.
Purpose: salt water is unusable for many jobs e.g irrigation, cooling power stations - 10DistillationProcess: water boiled by heating, steam produced is condensed and collected
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- A level Environmental studies (unit 2) Flashcards on water treatment processes, created by spoopy Gonzalez on 16/05/2018.
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- spoopy Gonzalez
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