engineering recuitment GATE CE 2023-24 Test Series Environmental Engineering Sewage Sewage Treatment
A municipal wastewater flow of 5000 m3/d is to be treated using an activated sludge system. Assuming an MLSS concentration of 1500 mg/L and an underflow concentration of 5000 mg/L form the secondary clarifier. If the sludge age is 12 days and volume of the tank is 1200 m3 then the volume of solids (m3/d) that must be wasted each day is ________.
Enter numerical value using the virtual keypad. Round off where necessary.