Question

What is sewage system ?

Answer 1

Here is the answer:-
Sewage treatment is the process of removing contaminants from municipal wastewater, containing mainly household sewage plus some industrial wastewater. Physical, chemical, and biological processes are used to remove contaminants and produce treated wastewater that is safe enough for release into the environment. 

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Answer 2

Here is your answer ...

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Hope this may help uh...

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Sewage system=The waste water , released from domestic activities , industries,hospitals,offices,and agriculture..