Answered

What is the primary purpose of sewage treatment plants?

A. To remove contaminants from sewage before release into the environment
B. To collect and transport sewage directly to residential areas
C. To generate electricity from sewage



Answer :

GinnyAnswer

Final answer:

Sewage treatment plants aim to remove organic matter and kill bacteria through various treatment processes.


Explanation:

The primary purpose of sewage treatment plants is to remove organic matter (oxygen-demanding waste) and kill bacteria. This process includes pretreatment, primary treatment, secondary treatment, tertiary treatment, disinfection, and either discharge to surface waters or reuse for other purposes.


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