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Wastewater treatment in a submerged anaerobic membrane bioreactor

TitleWastewater treatment in a submerged anaerobic membrane bioreactor
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2012
AuthorsCasu, S., Crispino N.A., Farina R., Mattioli D., Ferraris M., and Spagni A.
JournalJournal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
Volume47
Pagination204-209
ISSN10934529
KeywordsAcetic acid, Aerobic condition, Anaerobic digestion, Anaerobic membrane bioreactor, Anaerobic process, Anaerobic waste water treatment, Anaerobiosis, article, Bioconversion, Biogas, Biological Oxygen Demand Analysis, biomass production, Bioreactor, Bioreactors, butyric acid, cheese, Cheese whey, COD removal, Fatty acids, Fluid, food industry, heptanoic acid derivative, hexanoic acid, High concentration, High rate, Membrane bioreactor, Membranes, Operating condition, propionic acid, Reclamation, submerged anaerobic membrane bioreactor, sucrose, Sugar (sucrose), Synthetic waste water, valeric acid, Volatile, volatile fatty acid, Volatile fatty acids, Volumetric organic loading, Waste disposal, waste water management, Wastewater, Wastewater treatment, whey
Abstract

Although most membrane bioreactors are used under aerobic conditions, over the last few years there has been increased interest in their application for anaerobic processes. This paper presents the results obtained when a bench-scale submerged anaerobic membrane bioreactor was used for the treatment of wastewaters generated in the agro-food industry. The reactor was fed with synthetic wastewater consisting of cheese whey and sucrose, and volumetric organic loading rates (OLRs) ranging from 1.5 to 13 kgCOD/(m 3* d) were applied. Under the operating conditions studied, the maximum applicable OLR was between 6 and 10 gCOD/(g*L), which fell within the ranges of the high-rate anaerobic wastewater treatment systems, while high concentrations of volatile fatty acids were produced at higher OLR rates. With an OLR of 1.5-10 gCOD/(g*L), the reactor showed 94% COD removal, whereas this value dropped to 33% with the highest applied OLR of 13 gCOD/(g*L). The study therefore confirms that membrane bioreactors can be used for anaerobic wastewater treatment. © 2012 Copyright Taylor and Francis Group, LLC.

Notes

cited By 11

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84856422407&doi=10.1080%2f10934529.2012.640562&partnerID=40&md5=9fc33e8fd77b2c35f8ac7fd96d08103c
DOI10.1080/10934529.2012.640562
Citation KeyCasu2012204