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METHANOGENESIS AND SULFATE REDUCTION IN CHEMOSTATS: A FUNDAMENTAL EXPERIMENTAL KINETIC STUDY AND MODELING
Citation:
Gupta, A., J. Flora, M. Gupta, G.D. Sayles, AND M. Suidan. METHANOGENESIS AND SULFATE REDUCTION IN CHEMOSTATS: A FUNDAMENTAL EXPERIMENTAL KINETIC STUDY AND MODELING. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-94/051 (NTIS PB94159282).
Description:
Six chemostats containing mixed anaerobic cultures were used to investigate interactions between sulfate reduction and methanogenesis for three substrates: acetic acid, methanol, and formic acid. ulfate reducers outcompeted methanogens for acetic acid while methanol was not utilized by sulfate reducers. or the chemostat with formic acid feed, competition was observed between methanogens and sulfate reducers with 62% and 24% of the substrate utilized by sulfate reduction and methanogenesis, respectively. ron was added to the sulfate-reducing chemostats to prevent sulfide inhibition by precipitating the hydrogen sulfide produced. atch tests were conducted to evaluate kinetic parameters of the degradation of the different substrates. omprehensive dynamic model was developed that simulated methanogenesis and sulfate reduction in a chemostat. his model incorporates the complex chemistry of anaerobic systems and was able to predict both the steady state and batch tests reasonably well.
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METHANOGENESIS AND SULFATE REDUCTION IN CHEMOSTATS: A FUNDAMENTAL EXPERIMENTAL KINETIC STUDY AND MODELING