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dc.contributor.authorGe, Zhengen_US
dc.date.accessioned2015-11-07T09:00:39Z
dc.date.available2015-11-07T09:00:39Z
dc.date.issued2015-11-06en_US
dc.identifier.othervt_gsexam:6484en_US
dc.identifier.urihttp://hdl.handle.net/10919/63989
dc.description.abstractMicrobial fuel cells (MFCs) are potentially advantageous as an energy-efficient approach to wastewater treatment. For single-chamber tubular MFCs, anode effluent is used as catholyte instead of tap water or buffer solutions. Therefore, exposing cathode electrode to atmosphere could be also considered as a passive aeration for further aerobic oxidation of organics and nitrification. Based on several bench-scale studies, a 200-L scale MFC system with passive aeration process has been developed for treating actual municipal wastewater after primary clarification. The integrated system was able to remove over 80% organic contaminants and solid content from primary effluent. Through parallel and serial electricity connection, the power output of ~200 mW and the conversion efficiency of ~80% for charging capacitors were achieved by using commercially available energy harvesting device (BQ 25504). The treatment system is energy-efficient for the energy saving from aeration and sludge treatment while partial energy recovery as direct electricity can be utilized on site to power small electric devices. However, the post treatments are required to polish the effluent for nutrients removal.en_US
dc.format.mediumETDen_US
dc.publisherVirginia Techen_US
dc.rightsThis Item is protected by copyright and/or related rights. Some uses of this Item may be deemed fair and permitted by law even without permission from the rights holder(s), or the rights holder(s) may have licensed the work for use under certain conditions. For other uses you need to obtain permission from the rights holder(s).en_US
dc.subjectmicrobial fuel cellsen_US
dc.subjectwastewateren_US
dc.subjectenergy recoveryen_US
dc.subjectoptimizationen_US
dc.subjectscaling upen_US
dc.titleEnergy-efficient Wastewater Treatment by Microbial Fuel Cells: Scaling Up and Optimizationen_US
dc.typeDissertationen_US
dc.contributor.departmentCivil and Environmental Engineeringen_US
dc.description.degreePh. D.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineCivil Engineeringen_US
dc.contributor.committeechairHe, Zhenen_US
dc.contributor.committeememberPruden-Bagchi, Amy Jillen_US
dc.contributor.committeememberBoardman, Gregory D.en_US
dc.contributor.committeememberOgejo, Jactone Arogoen_US


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