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Question

Explain in short the process of treatment of effluents before discharge.

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Solution

Wastewater, both domestic and industrial, has undesirable components which are harmful to environment and human health. These contaminants need to be removed from wastewater so that the treated water can be used for beneficial purposes. This will also prevent the pollution of water source. The treatment of wastewater is carried out to the required degree in three basic stages. These are primary, secondary and tertiary treatment stages.

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