engineering recuitment BMC Sub Engineer Mock Test 2024 Environmental Engineering Sewage Sewage Treatment
Imhoff tank results in ______ removal of solids and _______ removal of BOD.
1
30 - 40 %, 60 - 65 %
2
60 - 65 %, 30 - 40 %
3
60 - 70 %, 98 - 99 %
4
20 - 30 %, 60 - 70 %
5
30 - 40 %, 10 - 20 %