Q. 185.0( 3 Votes )
What are the ways of treating industrial effluents which are responsible for water pollution?
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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