engineering recuitment BHEL Engineer Trainee Mock Test 2025 Environmental Engineering Sewage Sewage Treatment
Look at the following information for a completely mixed biological reactor: tank volume = 200 m3; flow rate = 50 m3/day ; incoming substrate concentration = 95 mg BOD5/L. Calculate effluent BOD5 ( Given Ks = 60 mg BOD5 /L ; kd = 0.06/day; μm = 3 /day )
1
6.92 mg/L
2
6.80 mg/L
3
7.0 mg/L
4
7.2 mg/L