Q. 185.0( 3 Votes )

What are the ways of treating industrial effluents which are responsible for water pollution?

Answer :

To minimize the effects of pollution, the hot waters and effluents could be treated before releasing it into the rivers.

This treatment could be done in 3 phases:

1. Primary treatment: By using mechanical means like screening, grinding, flocculation, and sedimentation. Here the solids are separated from the wastewater stream.

2. Secondary treatment: Using biological process, the dissolved matter is progressively converted into a solid mass by using indigenous, water-borne micro-organisms.

3. Tertiary treatment : The wastewater is recycled in the tertiary stage.

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