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2. A feed containing a soluble substrate with a biodegradable COD of 1000mg/L is flowing at a rate of 100L/hr into a 1000L aerobic CSTR

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2. A feed containing a soluble substrate with a biodegradable COD of 1000mg/L is flowing at a rate of 100L/hr into a 1000L aerobic CSTR which contains a mixed community of microorganisms. The kinetic parameters and stoichiometric coefficients characterizing the culture are given below: max=0.40day1Ks=120mgCOD/LYH=0.54mgcellCOD/mgCODbH=0.08day1 a.) Determine the following for an SRT of 100hr. a1) The concentration of soluble biodegradable COD in the effluent. a2) The total biomass concentration in the bioreactor. a3) The active fraction of the biomass. a4) The g/hr of oxygen which must be supplied to the bioreactor. a5) The g/hr of excess biomass that must be disposed of. a6) The mg/hr of nitrogen that will be used for synthesis of new biomass. a7) The process loading factor. b.) Would it be possible to achieve an effluent biodegradable COD concentration of 1.5 mg/L with this substrate and culture? Why? c.) What SRT would be required to reduce the soluble substrate concentration to 20mg/L as COD? What concentration of active biomass would be present in the bioreactor

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