文章基本信息

标题：Performance of Microbial Reverse-Electrodialysis Cells for Power Generation at Different External Resistance
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作者：Agus Jatnika Effendi ; Syarif Hidayat ; Syafrudin 等
期刊名称：Air, Soil and Water Research
电子版ISSN：1178-6221
出版年度：2020
卷号：13
DOI：10.1177/1178622120960086
语种：English
出版社：Libertas Academica
摘要：In this study, the effect of external resistance on the microbial reverse-electrodialysis cell (MRC) performance using organic-rich wastewater as an electron donor was examined. The optimum of external resistance was determined to be 300 Ω. In such condition, the power density of 1.53 ± 0.198 W/m 2 , substrate removal of 52 ± 2.3%, Coulombic efficiency of 70 ± 2.6%, energy recovery of 3.0 ± 0.4%, and energy efficiency of 53 ± 7.1% were obtained in the MRC. The differences in power density at different external resistances were mainly due to the changes in internal resistance and ion flux efficiency in the MRC. The external resistance affected substrate removal and Coulombic efficiency through the length of batch cycle time, and current density exchanged as well as the Tafel slope. Furthermore, the proper external resistance applied to the reactor created high power production; thus, high energy efficiency and energy recovery were achieved. These results demonstrated that selecting proper external resistance was an essential key for a successful MRC operational.