A model for membrane bioreactor process based on the concept of formation and degradation of soluble microbial products

• Published in: Water research (Oxford) Vol. 35; no. 8; pp. 2038 - 2048
• Main Authors: Lu, S.G., Imai, T., Ukita, M., Sekine, M., Higuchi, T., Fukagawa, M.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.06.2001; Elsevier Science
• Subjects: Activated Sludge; Applied sciences; Biodegradation, Environmental; Biological and medical sciences; Biological treatment of waters; Bioreactors; Biotechnology; Computer Simulation; Environment and pollution; Exact sciences and technology; Fundamental and applied biological sciences. Psychology; General purification processes; Industrial applications and implications. Economical aspects; intermittent aeration process; Kinetics; membrane bioreactor; Membranes, Artificial; model simulation; Models, Theoretical; Pollution; soluble microbial product; Wastewaters; Water Pollutants, Chemical; Water Purification - methods; Water treatment and pollution; model simulation; membrane bioreactor; intermittent aeration process; soluble microbial product; Activated sludge; Membrane reactor; Bioreactor; Waste water purification; Modeling; Biological purification
• ISSN: 0043-1354; 1879-2448
• DOI: 10.1016/S0043-1354(00)00461-9

A mathematical model of soluble microbial products (SMPs) formation–degradation was established based on the activated sludge model no.1 and was applied to the membrane bioreactor process with high concentration of activated sludge under intermittent aerobic operational condition. The simulation results were in good agreement with the experimental data which indicated that the coefficients used in the model could successfully describe the treatment performance. The most advantage of this modified model over the conventional one was that the significant importance of SMP existence was demonstrated and the model provided an reasonable comprehension for SMP concept. The present study demonstrated that SMPs contributed most to the organic matter in the effluent, and the results coincided well with the observations of many other researchers.