Question

last stage of treatment of sewage is by....... ​

Answer 1

Answer:

The purpose of tertiary treatment is to provide a final treatment stage to further improve the effluent quality before it is discharged to the receiving environment (sea, river, lake, wet lands, ground, etc.). More than one tertiary treatment process may be used at any treatment plant.

Environmental concerns: Water pollution (if treatment level is low), sewage sludge di...

Synonym: Wastewater treatment plant (WWTP), water reclamation plant

Outputs: Sewage sludge, effluent

Explanation:

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Answer 2

Answer:

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Explanation:

The purpose of tertiary treatment is to provide a final treatment stage to further improve the effluent quality before it is discharged to the receiving environment (sea, river, lake, wet lands, ground, etc.). More than one tertiary treatment process may be used at any treatment plant.