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Electricity production and sludge reduction by integrating microbial fuel cells in anoxic-oxic process.
Waste Manag. 2017 Nov; 69:346-352.WM

Abstract

To produce energy and reduce sludge production from the treatment of municipal wastewater, four identical microbial fuel cells (MFCs) were constructed in an anoxic-oxic (A/O) process (MFCs-A/O system). Experimental results indicated that this system enhance the removals of chemical oxygen demand (COD) and total nitrogen (TN). The electricity produced by each MFC were ranged from 0.371 to 0.477V (voltage) and from 138 to 227mW/m3 (power density) at the stable stage, when the external resistance was fixed at 1000Ω. The coulombic efficiency of the MFCs-A/O system ranged from 0.31% to 1.68% (mean=0.72%) at the stable stage, respectively. The removals of COD and TN in the MFCs-A/O system were slightly higher than those in the control system. Compared with the control system, the MFCs-A/O system can reduce waste activated sludge production and sludge yield by 24.0% and 24.2%, respectively. The experimental results indicated that the MFC constructed in A/O system improves wastewater treatment and the MFCs-A/O system can produce electricity while reducing sludge production and increasing wastewater treatment efficiency.

Authors+Show Affiliations

Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China.Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China.School of Hydraulic Engineering, Changsha University of Science and Technology, Changsha, Hunan 410004, China.Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address: gxs0122@rcees.ac.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28778783

Citation

Xiao, Benyi, et al. "Electricity Production and Sludge Reduction By Integrating Microbial Fuel Cells in Anoxic-oxic Process." Waste Management (New York, N.Y.), vol. 69, 2017, pp. 346-352.
Xiao B, Luo M, Wang X, et al. Electricity production and sludge reduction by integrating microbial fuel cells in anoxic-oxic process. Waste Manag. 2017;69:346-352.
Xiao, B., Luo, M., Wang, X., Li, Z., Chen, H., Liu, J., & Guo, X. (2017). Electricity production and sludge reduction by integrating microbial fuel cells in anoxic-oxic process. Waste Management (New York, N.Y.), 69, 346-352. https://doi.org/10.1016/j.wasman.2017.06.046
Xiao B, et al. Electricity Production and Sludge Reduction By Integrating Microbial Fuel Cells in Anoxic-oxic Process. Waste Manag. 2017;69:346-352. PubMed PMID: 28778783.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electricity production and sludge reduction by integrating microbial fuel cells in anoxic-oxic process. AU - Xiao,Benyi, AU - Luo,Meng, AU - Wang,Xiao, AU - Li,Zuoxing, AU - Chen,Hong, AU - Liu,Junxin, AU - Guo,Xuesong, Y1 - 2017/08/01/ PY - 2016/10/10/received PY - 2017/06/22/revised PY - 2017/06/25/accepted PY - 2017/8/6/pubmed PY - 2017/11/9/medline PY - 2017/8/6/entrez KW - Anoxic–oxic process KW - Electricity production KW - Microbial fuel cell KW - Municipal wastewater KW - Sludge reduction SP - 346 EP - 352 JF - Waste management (New York, N.Y.) JO - Waste Manag VL - 69 N2 - To produce energy and reduce sludge production from the treatment of municipal wastewater, four identical microbial fuel cells (MFCs) were constructed in an anoxic-oxic (A/O) process (MFCs-A/O system). Experimental results indicated that this system enhance the removals of chemical oxygen demand (COD) and total nitrogen (TN). The electricity produced by each MFC were ranged from 0.371 to 0.477V (voltage) and from 138 to 227mW/m3 (power density) at the stable stage, when the external resistance was fixed at 1000Ω. The coulombic efficiency of the MFCs-A/O system ranged from 0.31% to 1.68% (mean=0.72%) at the stable stage, respectively. The removals of COD and TN in the MFCs-A/O system were slightly higher than those in the control system. Compared with the control system, the MFCs-A/O system can reduce waste activated sludge production and sludge yield by 24.0% and 24.2%, respectively. The experimental results indicated that the MFC constructed in A/O system improves wastewater treatment and the MFCs-A/O system can produce electricity while reducing sludge production and increasing wastewater treatment efficiency. SN - 1879-2456 UR - https://www.unboundmedicine.com/medline/citation/28778783/Electricity_production_and_sludge_reduction_by_integrating_microbial_fuel_cells_in_anoxic_oxic_process_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0956-053X(17)30487-7 DB - PRIME DP - Unbound Medicine ER -