Assignment 4 Fall 2013 Soln

B what is the design solids residence time c estimate

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Unformatted text preview: What is the design solids residence time? c.) Estimate the effluent NH4-N concentration leaving the activated sludge process. d.) Assuming that the production of nitrifying biomass is negligible when compared to the production of heterotrophic biomass, estimate the fraction of the TKN that is oxidized to nitrate when the nitrogen content of grown biomass is 0.12 mg N/mg VSS. 25.3/35 = 0.72 ---> 72% removed 3.) The following table describes the operating conditions of an anoxic -aerobic activated sludge process that is achieving 85% nitrogen removal from the wastewater stream (considering both NH4-N and NO3-N). Param...
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This document was uploaded on 02/10/2014.

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