Extension of Anaerobic Digestion Model No. 1 with processes of sulfate reduction.
In the present work, the Anaerobic Digestion Model No. 1 (ADM1) for computer simulation of anaerobic processes was extended to the processes of sulfate reduction. The upgrade maintained the structure of ADM1 and included additional blocks describing sulfate-reducing processes (multiple reaction stoichiometry, microbial growth kinetics, conventional material balances for ideally mixed reactor, liquid-gas interactions, and liquid-phase equilibrium chemistry). The extended model was applied to describe a longterm experiment on sulfate reduction in a volatile fatty acid-fed upflow anaerobic sludge bed reactor and was generally able to predict the outcome of competition among acetogenic bacteria, methanogenic archaea, and sulfate- reducing bacteria for these substrates. The computer simulations also showed that when the upward liquid velocity in the reactor exceeds 1 m/d, the structure of the sludge becomes essential owing to bacterial detachment.
Fedorovich
Vyacheslav
V
Department of Chemical Enzymology, Moscow State University, Moscow, 119992, Russia. vfedorovich@enz.chem.msu.ru
Lens
Piet
P
Kalyuzhnyi
Sergey
S
D001421:Bacteria, Anaerobic / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism*; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000145:classification / Q000382:microbiology*; D018929:Cell Culture Techniques / Q000379:methods; D002455:Cell Division; D003198:Computer Simulation; D006868:Hydrolysis; D007220:Industrial Waste / Q000517:prevention & control; D007700:Kinetics; D008697:Methane / Q000378:metabolism*; D008954:Models, Biological; D010084:Oxidation-Reduction; D011786:Quality Control; D012722:Sewage / Q000382:microbiology; D013431:Sulfates / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D018508:Water Purification / Q000379:methods*
D007220:Industrial Waste; D012722:Sewage; D013431:Sulfates; D014874:Water Pollutants, Chemical; D008697:Methane