生物电化学系统和厌氧添加剂在废水处理中的应用：概念性综述。
Application of Bioelectrochemical Systems and Anaerobic Additives in Wastewater Treatment: A Conceptual Review.
机构信息
Green Engineering Research Group, Department of Chemical Engineering, Faculty of Engineering and The Built Environment, Durban University of Technology, Steve Biko Campus, S4 Level 1, Durban 4000, South Africa.
Environmental Pollution and Remediation Research Group, Department of Chemical Engineering, Faculty of Engineering, Mangosuthu University of Technology, Durban 4026, South Africa.
出版信息
Int J Mol Sci. 2023 Mar 1;24(5):4753. doi: 10.3390/ijms24054753.
The interspecies electron transfer (IET) between microbes and archaea is the key to how the anaerobic digestion process performs. However, renewable energy technology that utilizes the application of a bioelectrochemical system together with anaerobic additives such as magnetite-nanoparticles can promote both direct interspecies electron transfer (DIET) as well as indirect interspecies electron transfer (IIET). This has several advantages, including higher removal of toxic pollutants present in municipal wastewater, higher biomass to renewable energy conversion, and greater electrochemical efficiencies. This review explores the synergistic influence of bioelectrochemical systems and anaerobic additives on the anaerobic digestion of complex substrates such as sewage sludge. The review discussions present the mechanisms and limitations of the conventional anaerobic digestion process. In addition, the applicability of additives in syntrophic, metabolic, catalytic, enzymatic, and cation exchange activities of the anaerobic digestion process are highlighted. The synergistic effect of bio-additives and operational factors of the bioelectrochemical system is explored. It is elucidated that a bioelectrochemical system coupled with nanomaterial additives can increase biogas-methane potential compared to anaerobic digestion. Therefore, the prospects of a bioelectrochemical system for wastewater require research attention.
种间电子转移（IET）是微生物和古菌之间的关键，它决定了厌氧消化过程的性能。然而，利用生物电化学系统和磁铁矿纳米粒子等厌氧添加剂的可再生能源技术可以促进直接种间电子转移（DIET）和间接种间电子转移（IIET）。这有几个优点，包括更高去除市政废水中存在的有毒污染物，更高生物质到可再生能源的转化，以及更大的电化学效率。本文综述了生物电化学系统和厌氧添加剂对复杂底物（如污水污泥）的厌氧消化的协同影响。综述讨论了传统厌氧消化过程的机制和局限性。此外，还强调了添加剂在厌氧消化的共生、代谢、催化、酶和阳离子交换活性中的适用性。探讨了生物添加剂和生物电化学系统操作因素的协同效应。结果表明，与厌氧消化相比，生物电化学系统与纳米材料添加剂结合可以提高沼气-甲烷潜力。因此，需要研究生物电化学系统对废水的前景。
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