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A bio-electro-Fenton system with a facile anti-biofouling air cathode for efficient degradation of landfill leachate.
Chemosphere. 2019 Jan; 215:173-181.C

Abstract

Bio-electro-Fenton (BEF) system holds great potential for sustainable degradation of refractory organics. Activated carbon (AC) air cathode was modified by co-pyrolyzing of AC with glucose and doping with nano-zero-valent iron (denoted as nZVI@MAC) in order to promote two-electron oxygen reduction reaction (2e- ORR) for enhanced oxidizing performance. Single chamber microbial fuel cells (SCMFCs) with nZVI@MAC cathode was examined to degrade landfill leachate. It was revealed that nZVI@MAC cathode SCMFC showed higher degradation efficiency towards landfill leachate. Six landfill leachate treatment cycles indicated that nZVI@MAC cathode SCMFC exhibited higher COD removal efficiencies over AC and nZVI@AC and greatly enhanced columbic efficiency compared to AC and nZVI@AC cathode. Anti-biofouling effect was found on nZVI@MAC cathode because of the high Fenton oxidation effects at the vicinity of the cathode. Electrochemical characterizations indicated that MAC cathode had superior 2e- ORR capability than AC and nZVI@AC cathode, which was further evidenced by higher H2O2 production from nZVI@MAC cathode in SCMFC. Graphitic structure of MAC was evidenced by High Resolution Transmission Electron Microscopy, and glucose pyrolysis also resulted in nano carbon spheres on the activated carbon skeletons. Raman spectra indicated more defects were generated on MAC during its co-pyrolyzation with glucose.

Authors+Show Affiliations

School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei, 430074, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei, 430074, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei, 430074, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei, 430074, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei, 430074, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei, 430074, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei, 430074, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei, 430074, China.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei, 430074, China. Electronic address: Bingchuan@hust.edu.cn.School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, PR China; Hubei Provincial Engineering Laboratory of Solid Waste Treatment, Disposal and Recycling, 1037 Luoyu Road, Wuhan, Hubei, 430074, China. Electronic address: jkyang@hust.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30316159

Citation

Wang, Dongliang, et al. "A bio-electro-Fenton System With a Facile Anti-biofouling Air Cathode for Efficient Degradation of Landfill Leachate." Chemosphere, vol. 215, 2019, pp. 173-181.
Wang D, Hou H, Hu J, et al. A bio-electro-Fenton system with a facile anti-biofouling air cathode for efficient degradation of landfill leachate. Chemosphere. 2019;215:173-181.
Wang, D., Hou, H., Hu, J., Xu, J., Huang, L., Hu, S., Liang, S., Xiao, K., Liu, B., & Yang, J. (2019). A bio-electro-Fenton system with a facile anti-biofouling air cathode for efficient degradation of landfill leachate. Chemosphere, 215, 173-181. https://doi.org/10.1016/j.chemosphere.2018.10.018
Wang D, et al. A bio-electro-Fenton System With a Facile Anti-biofouling Air Cathode for Efficient Degradation of Landfill Leachate. Chemosphere. 2019;215:173-181. PubMed PMID: 30316159.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A bio-electro-Fenton system with a facile anti-biofouling air cathode for efficient degradation of landfill leachate. AU - Wang,Dongliang, AU - Hou,Huijie, AU - Hu,Jingping, AU - Xu,Jikun, AU - Huang,Long, AU - Hu,Shaogang, AU - Liang,Sha, AU - Xiao,Keke, AU - Liu,Bingchuan, AU - Yang,Jiakuan, Y1 - 2018/10/05/ PY - 2018/06/29/received PY - 2018/10/02/revised PY - 2018/10/04/accepted PY - 2018/10/14/pubmed PY - 2018/12/24/medline PY - 2018/10/14/entrez KW - Bio-electro-Fenton KW - COD removal KW - Columbic efficiency KW - Heterogeneous Fenton oxidation KW - Landfill leachate KW - Microbial fuel cell SP - 173 EP - 181 JF - Chemosphere JO - Chemosphere VL - 215 N2 - Bio-electro-Fenton (BEF) system holds great potential for sustainable degradation of refractory organics. Activated carbon (AC) air cathode was modified by co-pyrolyzing of AC with glucose and doping with nano-zero-valent iron (denoted as nZVI@MAC) in order to promote two-electron oxygen reduction reaction (2e- ORR) for enhanced oxidizing performance. Single chamber microbial fuel cells (SCMFCs) with nZVI@MAC cathode was examined to degrade landfill leachate. It was revealed that nZVI@MAC cathode SCMFC showed higher degradation efficiency towards landfill leachate. Six landfill leachate treatment cycles indicated that nZVI@MAC cathode SCMFC exhibited higher COD removal efficiencies over AC and nZVI@AC and greatly enhanced columbic efficiency compared to AC and nZVI@AC cathode. Anti-biofouling effect was found on nZVI@MAC cathode because of the high Fenton oxidation effects at the vicinity of the cathode. Electrochemical characterizations indicated that MAC cathode had superior 2e- ORR capability than AC and nZVI@AC cathode, which was further evidenced by higher H2O2 production from nZVI@MAC cathode in SCMFC. Graphitic structure of MAC was evidenced by High Resolution Transmission Electron Microscopy, and glucose pyrolysis also resulted in nano carbon spheres on the activated carbon skeletons. Raman spectra indicated more defects were generated on MAC during its co-pyrolyzation with glucose. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/30316159/A_bio_electro_Fenton_system_with_a_facile_anti_biofouling_air_cathode_for_efficient_degradation_of_landfill_leachate_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(18)31866-6 DB - PRIME DP - Unbound Medicine ER -