Water supply and conservation-chemistry

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name the three stages in the process of water treatment.
sedimentation,filtration and chlorination.
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describe the sedimentation stage
water is first stored in setting tanks, where larger particles sink to the bottom. Water can be drawn off leaving the sediment behind.
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describe the filtration stage
the water is then passed through a system of filters which remove small particles.But bacteria can pass through the filters.
3 of 8
describe the chlorination stage
chlorine is added to the water which kill the bacteria leaving the water fit for delivery.
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describe the importance of conserving water
we need a supply of drinking water-humans can only live for about a week without any water.Water is needed on farms to grow food.Amount of water-important in any habitat so if reduced habitat will change etc.Water important in many industrial proce
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name ways of conserving water
having a shower rather than a bath,not letting water run unnecessarily e.g. when cleaning teeth.repairing dripping taps.collecting rainwater to use for watering the garden or washing a car.
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is all water on our planet clean?
water in rivers and oceans polluted.-dumping of sewage plastics etc are having an effect on the quality of the water in the water cycle.
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finished:)x
x
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Other cards in this set

Card 2

Front

describe the sedimentation stage

Back

water is first stored in setting tanks, where larger particles sink to the bottom. Water can be drawn off leaving the sediment behind.

Card 3

Front

describe the filtration stage

Back

Preview of the front of card 3

Card 4

Front

describe the chlorination stage

Back

Preview of the front of card 4

Card 5

Front

describe the importance of conserving water

Back

Preview of the front of card 5
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