Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Environmental Engineering Quality and Characteristics of Sewage
For a 3% Dillution of the wastewater calculate the 5 day BOD at 20°C. If Dissolved oxygen of the test sample is 0.7 mg/l, Dissolved oxygen of aerated water is 3.5 mg/l and Dissolved. Oxygen of Diluted sample after 5 days incubation is 1.2 mgs/litre
1
1.2 mgs/litre
2
6.648 mg/l
3
73.87 mg/l
4
76.67 mg/l