Question
In: Civil Engineering
A wastewater treatment plant with activated-sludge process treats wastewater for 120,000 m3/d. The effluent standard for...
A wastewater treatment plant with activated-sludge process
treats wastewater for 120,000 m3/d. The effluent standard for both
BOD and TSS is 20 mg/L. Influent TSS concentration is 450 mg/L and
influent BOD concentration is 220 mg/L. MLSS concentration is 3500
mg/L (Assume no nitrification and temperature is 20°C). Determine:
(20 pts) (a) Influent BOD and TSS concentration to the aeration
tank if the treatment efficiencies in primary clarifier are 30% and
70% for BOD and TSS, respectively. (b) Determine sludge production
as kg TSS/d (c) What is the design volume and retention time of the
aeration basin (m3)? (d) Determine the F/M ratio in units of kg
BOD5/kg MLVSS-day.
(According to your design you can assume some parameters i.e SRT
but do not forget to check both your assumptions and your results
are in the desirable design conditions)
Solutions
Expert Solution
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All the best :)
Ally Wells answered 8 months agoRelated Solutions
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