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water treatment processes

spoopy Gonzalez Environmental studies A level Español 10 fichas

Fichas del conjunto (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

Descripción: A level (unit 2) Environmental studies Fichas sobre water treatment processes, creado por spoopy Gonzalez el 16/05/2018.
Creado por: spoopy Gonzalez
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