Question

Sewage contains some organic impurities in it. Name them.

Answer 1

Answer:

The organic impurities present in sewage are human faeces, animal wastes (like animal dung), urea (as urine), oil, fruits and vegetable wastes, pesticides, herbicides, etc. The inorganic impurities present in sewage are nitrates, phosphates and metals. The nutrients present in sewage are nitrogen and phosphorus

Explanation:

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Answer 2

Answer:

the organic impurities are human faces ,animal waste oil urea ,pesticides ,herbicide, fruit and vegetable waste etc

Explanation:

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