Engineering, 06.12.2019 06:31 rfultz27

Aww plant has ww with 450 mg/l bod (the soluble bod is 250 mg/l) and 280 mg/l ss. the biological tower treatment process consists of high-density, cross-flow packing media with dimensions of 480 sq ft by 20 ft high. the packing has a specific area of 42 sq ft/cubic ft, n = 0.5 and k20 =0.0035 (gpm/sq ft)0.5. the primary clarifier effluent is 0.8 mgd at 18oc. the recirculation ration is 1.0. calculate the effluent soluble bod at 20oc, then correct the calculation for actual temperature. calculate the soluble and total effluent bod assuming that the effluent has 0.54 soluble bod/total bod.

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Aww plant has ww with 450 mg/l bod (the soluble bod is 250 mg/l) and 280 mg/l ss. the biological tow...