Question

An anaerobic stabilization pond is designed for a residential area have a population of 8000 (wastewater production is 225 L/day-capita). Pond is designed as a facultative pond and maturation pond in series. The BOD of raw sewage is 180 mg/L, the influent FC is 106 FC/100 mL and the operating temperature is 12°C. The effluent BOD concentration should be lower than 20 mg/L. Design completely both ponds using the relevant information and assumptions to provide an efficient design.

Answer 1