title: A kinetic model for suspended and attached growth of a defined mixed culture.
abstract: Kinetic experiments were carried out in a semicontinuous wastewater treatment process called self-cycling fermentation (SCF) using a defined mixed culture and various concentrations of synthetic brewery wastewater. The same consortium, which had been previously identified as Acinetobacter sp., Enterobacter sp., and Candida sp., were used in these experiments. The overall rate of substrate removal was attributable to both suspended microbes and the biofilm that formed during the treatment process. A rate expression was developed for the SCF system for a range of synthetic wastewaters containing glucose and various initial concentrations of ethanol and maltose. The data indicated that substrate removal by the suspended cells was directly related to the biomass concentration. However, substrate removal by the biofilm was apparently not affected by the biofilm thickness and was a function of substrate concentration only.
authors.affiliation: Department of Chemical and Environmental Engineering, University of California, Riverside, California 92521, USA.
authors.forename: Kawai
authors.initials: K
authors.lastname: Tam
authors.forename: Mark R
authors.initials: MR
authors.lastname: Matsumoto
authors.forename: John D
authors.initials: JD
authors.lastname: Sheppard
mesh_terms: D000150:Acinetobacter / Q000502:physiology*; D001422:Bacterial Adhesion / Q000502:physiology; D019149:Bioreactors / Q000382:microbiology*; D002175:Candida / Q000302:isolation & purification* / Q000502:physiology; D018929:Cell Culture Techniques / Q000379:methods; D049109:Cell Proliferation; D018920:Coculture Techniques / Q000379:methods; D003198:Computer Simulation; D004754:Enterobacter / Q000502:physiology*; D000431:Ethanol / Q000378:metabolism; D005947:Glucose / Q000378:metabolism; D007220:Industrial Waste / Q000517:prevention & control; D008320:Maltose / Q000378:metabolism; D008954:Models, Biological; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000493:pharmacokinetics*
chemical_list: D007220:Industrial Waste; D014874:Water Pollutants, Chemical; D000431:Ethanol; D008320:Maltose; D005947:Glucose