Q. 185.0( 4 Votes )
What are th
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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