title: Upflow bio-filter circuit (UBFC): biocatalyst microbial fuel cell (MFC) configuration and application to biodiesel wastewater treatment.
abstract: A biodiesel wastewater treatment technology was investigated for neutral alkalinity and COD removal by microbial fuel cell. An upflow bio-filter circuit (UBFC), a kind of biocatalyst MFC was renovated and reinvented. The developed system was combined with a pre-fermented (PF) and an influent adjusted (IA) procedure. The optimal conditions were operated with an organic loading rate (OLR) of 30.0 g COD/L-day, hydraulic retention time (HRT) of 1.04 day, maintained at pH level 6.5-7.5 and aerated at 2.0 L/min. An external resistance of circuit was set at 10 kΩ. The purposed process could improve the quality of the raw wastewater and obtained high efficiency of COD removal of 15.0 g COD/L-day. Moreover, the cost of UBFC system was only US$1775.7/m3 and the total power consumption was 0.152 kW/kg treated COD. The overall advantages of this invention are suitable for biodiesel wastewater treatment.
authors.affiliation: Center of Excellent in Sustainable Energy and Environment, Department of Food Science and Technology, Faculty of Technology and Community Development, Thaksin University, Phattalung Campus, Phattalung 93110, Thailand. chontisa.s@gmail.com
authors.forename: Chontisa
authors.initials: C
authors.lastname: Sukkasem
authors.forename: Sunee
authors.initials: S
authors.lastname: Laehlah
authors.forename: Adilan
authors.initials: A
authors.lastname: Hniman
authors.forename: Sompong
authors.initials: S
authors.lastname: O'thong
authors.forename: Piyarat
authors.initials: P
authors.lastname: Boonsawang
authors.forename: Athirat
authors.initials: A
authors.lastname: Rarngnarong
authors.forename: Mudtorlep
authors.initials: M
authors.lastname: Nisoa
authors.forename: Pansak
authors.initials: P
authors.lastname: Kirdtongmee
mesh_terms: D000332:Aerobiosis; D055162:Biocatalysis; D001674:Bioelectric Energy Sources / Q000191:economics; D056804:Biofuels / Q000032:analysis*; D057919:Biological Oxygen Demand Analysis; D003365:Costs and Cost Analysis; D058645:Denaturing Gradient Gel Electrophoresis; D004560:Electricity; D004566:Electrodes; D005285:Fermentation; D005374:Filtration / Q000191:economics / Q000295:instrumentation*; D006863:Hydrogen-Ion Concentration; D010100:Oxygen / Q000737:chemistry; D013997:Time Factors; D014865:Waste Disposal, Fluid; D018508:Water Purification / Q000191:economics / Q000295:instrumentation* / Q000379:methods*
chemical_list: D056804:Biofuels; D010100:Oxygen