Environmental Sciences, asked by Gagan298, 1 year ago

What are the objectives of primary, secondary and tertiary wastewater treatment. give one example of a treatment process for each level of treatment?

Answers

Answered by praneethkumar1
1
Secondary treatment is a treatment processfor wastewater (or sewage) to achieve a certain degree of effluent quality by using a sewage treatment plant with physical phase separation to remove settleable solids and a biological process to remove dissolved and suspended organic compounds.

Sewage treatment generally involves three stages, called primary, secondary and tertiarytreatment. Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface.


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