Wastewater treatment generates a large quantity of sludge, which can
be treated by:
a. digesters
b. activated sludge
c. chemicals
d. oxidation pond.
NCERT Class XII
Biology - Main Course Book
Chapter 10. Microbes in Human Welfare
Answers
Answered by
4
Wastewater treatment generates a large quantity of sludge, which can be treated by oxidation pond.
So, the answer is option d.
So, the answer is option d.
Answered by
3
The answer is: (d).....................
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