Secondary treatment of sewage involves
A)filtering and aeration.
B)settling and sludge removal.
C)chlorination.
D)Secondary sewage treatment involves all of the above.

Name: Secondary treatment of sewage involves A)filtering and aeration. B)settling and sludge removal. C)chlorination. D)Secondary sewage treatment involves all of the above.
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Question

Quizplus · Accepted Answer

Secondary treatment of sewage primarily involves biological processes such as filtering and aeration to remove dissolved and suspended organic matter.

Secondary Treatment of Sewage Involves