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Which one of the following impuritites i...

Which one of the following impuritites is easiest to remove from wastewater ?

A

Bacteria

B

Colloids

C

Dissolved soilds

D

Suspended solids

Text Solution

Verified by Experts

Three type of impurites are found in waste water , suspended particle (solids). Colloidal impurities and dissolved material (inorganic) like calcium, ammonia, toxic material , phosphate , sodium , calcium and nitrate. Out of them suspended solids like sand silt and clay impurities are easily removes , in sewage treatment plants.
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NCERT EXEMPLAR-ENVIRONMENTAL ISSUES -Environmental Issues
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  2. Why is it necessary to remove sulphur from petroleum products ?

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  10. In which year was the Air (Prevention and Control of pollution) Act am...

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  12. It is a common practice to undertake of the overhead water tanks. What...

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  13. What is cultural eutrophicetion?

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  14. List any two adverse effects of particulate matter on human health.

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  15. What is the raw material for polyblend?

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  16. Blends of polyblend and bitumen, when used, help to increase road life...

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  17. Mention any two example of plants used as wind breakers in the agricul...

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  18. Name an industry which can cause both air and thermal pollution and as...

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  19. What is an algal bloom ?

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