Can we establish small sewage treatment plants is a locality? What can be the disadvantages of establishing such plants and how to tackle with those disadvantages?

Dear Student
Yes, small sewage treatment can be set up in a locality. Based on the capacity proper aerobic and anaerobic tanks can be designed to detoxify pollutants. Every industry employs sewage treatment plant as a mandate so can it be set up for the locality.
Disadvantage:
Digester leads to foul smelling if not properly treated. Excessive sludge may clog tanks.
Treatment: Proper aeration can reduce the smell. Timely maintenance can help to sort the issue. 
Hope this information will clear your doubts about the topic.
Regards

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