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A feasibility investigation of a pilot-scale bioelectrochemical coupled anaerobic digestion system with centric electrode module for real membrane manufacturing wastewater treatment
Bioresource Technology ( IF 9.7 ) Pub Date : 2022-11-21 , DOI: 10.1016/j.biortech.2022.128371
Jiawei Xie 1 , Xinyi Zou 1 , Yaofeng Chang 1 , He Liu 2 , Min-Hua Cui 2 , Tian C Zhang 3 , Jiajian Xi 4 , Chongjun Chen 5
Affiliation  

The large-scale application of bioelectrochemical coupled anaerobic digestion (BES-AD) is limited by the matching of electrode configuration and the applicability of real wastewater. In this study, a pilot-scale BES-AD system with an effective system volume of 5 m3 and a 1 m3 volume of a carbon fiber brush electrode module was constructed and tested for treatment of the membrane manufacturing wastewater. The results showed that the BOD5/COD of the wastewater was increased from 0.238 to 0.398 when the applied voltage was 0.9 V. The pollutants such as N, N-Dimethylacetamide and glycerol in wastewater were degraded significantly. The microorganisms in the electrode modules were spatially enriched. The fermenters (Norank_f__ML635J-40_aquatic_group, 6.55%; unclassified_f__Propionibacteriaceae, 5.25%) and degraders (Corynebacterium, 29.31%) were mostly enriched at the bottom, while electroactive bacteria (Pseudomonas, 29.39%, Geobacter, 7.86%) were mostly enriched at the top. Combined with the economical construction and operation cost ($1708.8/m3 and $0.76/m3) of the BES-AD system.



中文翻译:

中试生物电化学耦合厌氧消化系统用于真膜生产废水处理的可行性研究

生物电化学耦合厌氧消化(BES-AD)的大规模应用受到电极配置匹配和实际废水适用性的限制。在这项研究中,构建了一个中试规模的 BES-AD 系统,其有效系统体积为 5 m 3,碳纤维刷电极模块的体积为 1 m 3,并测试了膜制造废水的处理。结果表明,当施加电压为0.9 V时,废水的BOD 5 /COD由0.238提高到0.398,废水中的N,N-二甲基乙酰胺和甘油等污染物得到显着降解。电极模块中的微生物在空间上富集。发酵罐(Norank_f__ML635J-40_aquatic_group,6.55%;unclassified_f__Propionibacteriaceae , 5.25%)和降解菌( Corynebacterium , 29.31%)主要富集在底部,电活性菌( Pseudomonas , 29.39%, Geobacter , 7.86%)主要富集在顶部。结合 BES-AD 系统的经济建设和运营成本($1708.8/m 3和 $0.76/m 3)。

更新日期:2022-11-22
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