engineering recuitment UKPSC Polytechnic Lecturer Mock Test 2024 Environmental Engineering Sewage Sewage Treatment
Which of the following is defined as the volume occupied in millilitre by 1 gram of solids in the mixed liquor after settling for 30 minutes?
1
Sludge recycle
2
Sludge volume index
3
Rate of return sludge
4
Volumetric BOD loading