title: Development of anode zone using dual-anode system to reduce organic matter crossover in membraneless microbial fuel cells.
abstract: To prevent the occurrence of the organic crossover in membraneless microbial fuel cells (ML-MFCs), dual-anode MFC (DA-MFC) was designed from multi-anode concept to ensure anode zone. The anode zone addressed increase the utilization of organic matter in ML-MFCs, as the result, the organic crossover was prevented and performance of MFCs were enhanced. The maximum power of the DA-MFC was 0.46mW, which is about 1.56 times higher than the ML-MFC (0.29mW). Furthermore, the DA-MFC had advantage in correlation of organic substance concentration and dissolved oxygen concentration, and even electric over-potential. In addition, in terms of cathode fouling, the DA-MFC showed clearer surface. Hence, the anode zone should be considered in the advanced ML-MFC for practically use in wastewater treatment process, and also for scale-up of MFCs.
authors.affiliation: School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
authors.forename: Jisu
authors.initials: J
authors.lastname: Kim
authors.affiliation: School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
authors.forename: Bongkyu
authors.initials: B
authors.lastname: Kim
authors.affiliation: School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
authors.forename: Junyeong
authors.initials: J
authors.lastname: An
authors.affiliation: School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea.
authors.forename: Yoo Seok
authors.initials: YS
authors.lastname: Lee
authors.affiliation: School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 123 Cheomdangwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea. Electronic address: ischang@gist.ac.kr.
authors.forename: In Seop
authors.initials: IS
authors.lastname: Chang
mesh_terms: D001674:Bioelectric Energy Sources; D018441:Biofilms; D018533:Biomass; D004560:Electricity; D004563:Electrochemistry; D004566:Electrodes; D008567:Membranes, Artificial; D009930:Organic Chemicals / Q000032:analysis*; D062065:Wastewater; D018508:Water Purification
chemical_list: D008567:Membranes, Artificial; D009930:Organic Chemicals; D062065:Wastewater
keywords: Anode zone; Dual-anode system; Membraneless MFC; Microbial fuel cell; Organic crossover