RCEES OpenIR  > 中国科学院环境生物技术重点实验室
Bioelectrochemical degradation of monoaromatic compounds: Current advances and challenges
Yang, Kaichao; Ji, Min; Liang, Bin; Zhao, Yingxin; Zhai, Siyuan; Ma, Zehao; Yang, Zhifan
AbstractMonoaromatic compounds (MACs) are typical refractory organic pollutants which are existing widely in various environments. Biodegradation strategies are benign while the key issue is the sustainable supply of electron acceptors/donors. Bioelectrochemical system (BES) shows great potential in this field for providing continuous electrons for MACs degradation. Phenol and BTEX (Benzene, Toluene, Ethylbenzene and Xylenes) can utilize anode to enhance oxidative degradation, while chlorophenols, nitrobenzene and antibiotic chloramphenicol (CAP) can be efficiently reduced to less-toxic products by the cathode. However, there still have several aspects need to be improved including the scale, electricity output and MACs degradation efficiency of BES. This review provides a comprehensive summary on the BES degradation of MACs, and discusses the advantages, future challenges and perspectives for BES development. Instead of traditional expensive dual-chamber configurations for MACs degradation, new single-chamber membrane-less reactors are cost-effective and the hydrogen generated from cathodes may promote the anode degradation. Electrode materials are the key to improve BES performance, approaches to increase the biofilm enrichment and conductivity of materials have been discussed, including surface modification as well as composition of carbon and metal-based materials. Besides, the development and introduction of functional microbes and redox mediators, participation of sulfur/hydrogen cycling may further enhance the BES versatility. Some critical parameters, such as the applied voltage and conductivity, can also affect the BES performance, which shouldn't be overlooked. Moreover, sequential cathode-anode cascaded mode is a promising strategy for MACs complete mineralization.
KeywordMonoaromatic compounds (MACs) Bioelectrochemical system (BES) Degradation mechanisms Electrode materials Sulfur/hydrogen cycling
Document Type期刊论文
Recommended Citation
GB/T 7714
Yang, Kaichao,Ji, Min,Liang, Bin,et al. Bioelectrochemical degradation of monoaromatic compounds: Current advances and challenges[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,398:1-12.
APA Yang, Kaichao.,Ji, Min.,Liang, Bin.,Zhao, Yingxin.,Zhai, Siyuan.,...&Yang, Zhifan.(2020).Bioelectrochemical degradation of monoaromatic compounds: Current advances and challenges.JOURNAL OF HAZARDOUS MATERIALS,398,1-12.
MLA Yang, Kaichao,et al."Bioelectrochemical degradation of monoaromatic compounds: Current advances and challenges".JOURNAL OF HAZARDOUS MATERIALS 398(2020):1-12.
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