A waste treated using an activated sludge process has an aeration basin with a volume of 10^6 Land a solid retention time of 4 days. What would the mass flow of wasted solids be in this system (kg/day) if the biomass in the aeration basin is 3000 mg/L and that in the wasted sludge is 12,500 mg/L?

A waste treated using an activated sludge process has an aeration basin with a volume of 10^6 Land a solid retention time of 4 days. What would the mass flow of wasted solids be in this system (kg/day) if the biomass in the aeration basin is 3000 mg/L and that in the wasted sludge is 12,500 mg/L?

Solid Waste Engineering

3rd Edition

ISBN:9781305635203

Author:Worrell, William A.

Publisher:Worrell, William A.

Chapter6: Biological Processes

Section: Chapter Questions

Problem 6.8P

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Biological Processes

Biological solid waste includes bacterial and contaminated waste produced by living individuals. Its treatment is essential to prevent the spread of any air-borne or water-borne diseases or diseases transmitted from one organism to another in a food chain. There are many benefits of the biological solid waste treatment and some of them are: the minimized quantity of waste substance, waste control, eradicating any disease-causing pathogens, generation of biogas, composting, anaerobic digestion, bio drying, mechanical biological treatment, microbial fuel cell, phytoremediation, and biofiltration. The final products of the biological solid waste treatment may be recycled to obtain organic fertilizers or disposed of in SWDS (Solid Waste Disposal Site) after proper treatment.

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