title: Power generation and nitrogen removal of landfill leachate using microbial fuel cell technology.
abstract: Microbial fuel cell (MFC) technology has been practised in the treatment of landfill leachate. However, it is a big challenge for the usage of MFCs to treat landfill leachate with high ammonium content. The purpose of this study was to design and test two MFC reactors, i.e. an ammonium oxidation/MFC reactor and an MFC/Anammox reactor for the treatment of landfill leachate with high ammonium content in terms of power generation and nitrogen removal. Using the ammonium oxidation/MFC reactor, the landfill leachate collected from Leon County Landfill of Northwest Florida generated a power density of 8 mW/m2 together with 92% of nitrogen removal. For the MFC/Anammox reactor, a power density of 12 mW/m2 was achieved with 94% of nitrogen removal. Compared with the ammonium oxidation/MFC reactor, 50% more energy was generated because in the MFC/Anammox Reactor, nitrite served as the electron acceptor; while in the Ammonium Oxidation/MFC reactor, nitrate served as the electron acceptor. In this research, power generation was also found to be directly linked to the microbial species that were involved in organic decomposition, i.e. the greater the microbial concentration, the more the power generated.
authors: Department of Civil and Environmental Engineering, FAMU-FSU College of Engineering, 2525 Pottsdamer Street, Tallahassee, FL 32310, USA.
authors: Yongwoo
authors: Y
authors: Lee
authors: Florida Department of Environmental Protection, 3900 Commonwealth Boulevard M.S. 49, Tallahassee, FL 32399, USA.
authors: Lee
authors: L
authors: Martin
authors: Florida Department of Environmental Protection, 3900 Commonwealth Boulevard M.S. 49, Tallahassee, FL 32399, USA.
authors: Peter
authors: P
authors: Grasel
authors: Department of Civil and Environmental Engineering, FAMU-FSU College of Engineering, 2525 Pottsdamer Street, Tallahassee, FL 32310, USA.
authors: Kamal
authors: K
authors: Tawfiq
authors: Department of Civil and Environmental Engineering, FAMU-FSU College of Engineering, 2525 Pottsdamer Street, Tallahassee, FL 32310, USA.
authors: Gang
authors: G
authors: Chen
mesh_terms: D064751:Ammonium Compounds / Q000302:isolation & purification* / Q000378:metabolism; D001674:Bioelectric Energy Sources / Q000382:microbiology*; D019149:Bioreactors / Q000382:microbiology; D004867:Equipment Design; D045302:Geobacter / Q000378:metabolism; D059013:Microbial Consortia; D009584:Nitrogen / Q000302:isolation & purification* / Q000378:metabolism; D010084:Oxidation-Reduction; D020614:Shewanella putrefaciens / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000302:isolation & purification* / Q000378:metabolism
chemical_list: D064751:Ammonium Compounds; D014874:Water Pollutants, Chemical; D009584:Nitrogen