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Biomass and substrate mass balance equations can be merged giving QwXR/VX=Y/X (Qo/V) (So-S)-kd (i) Prove that X= SRT/HRT (Y(So-S)/1+kd(SRT)). Note that HRT = t and SRT = tc. (ii) If you are an engineer working in a wastewater consultancy company, and obtained the following data: - сот days

Biomass and substrate mass balance equations can be merged giving QwXR/VX=Y/X (Qo/V) (So-S)-kd (i) Prove that X= SRT/HRT (Y(So-S)/1+kd(SRT)). Note that HRT = t and SRT = tc. (ii) If you are an engineer working in a wastewater consultancy company, and obtained the following data: - сот days

Solid Waste Engineering
Solid Waste Engineering
3rd Edition
ISBN:9781305635203
Author:Worrell, William A.
Publisher:Worrell, William A.
Chapter2: Municipal Solid Waste Characteristics And Quantities
Section: Chapter Questions
Problem 2.6P
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Biomass and substrate mass balance equations can be merged giving QwXR/VX=Y/X (Qo/V) (So-S)-kd (i) Prove that X= SRT/HRT Note that HRT = t and SRT = tc. (ii) If you are an engineer working in a wastewater consultancy company, and obtained the following data: - SRT = 20 days HRT 20 hours = (Y(So-S)/1+kd(SRT)). So = 350 mg/L S = 100 mg/L Y = 0.15 kd = 0.22 per day Calculate the increment of MLSS (%) required in the aerobic tank if the discharge BOD5 in the effluent needs to achieve 10 mg/L.
Transcribed Image Text:Biomass and substrate mass balance equations can be merged giving QwXR/VX=Y/X (Qo/V) (So-S)-kd (i) Prove that X= SRT/HRT Note that HRT = t and SRT = tc. (ii) If you are an engineer working in a wastewater consultancy company, and obtained the following data: - SRT = 20 days HRT 20 hours = (Y(So-S)/1+kd(SRT)). So = 350 mg/L S = 100 mg/L Y = 0.15 kd = 0.22 per day Calculate the increment of MLSS (%) required in the aerobic tank if the discharge BOD5 in the effluent needs to achieve 10 mg/L.
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