engineering recuitment UPSSSC JE Civil 2024 Mock Test Environmental Engineering Disposing of Sewage Effluents
A township is to treat 5,00,000 litres of sewage per day which has a 5-day BOD of 150 ppm. An oxidation pond is used for the purpose. The effluent can have a BOD of 15 ppm. The loading is to be 40 kg of a 5-day BOD per hectare per day. The required area of the pond is:
1
1.975 ha
2
1.875 ha
3
2 ha
4
1.6875 ha