CCCC National Engineering Research, Center of Dredging Technology and Equipment Co. Ltd, 1088 Yangshupu Road, Shanghai, 200082, China.
School of Resources and Environment, Carbon Neutralization Research Institute, Hunan University of Technology and Business, Changsha, 410205, China.
J Environ Manage. 2023 Sep 15;342:118192. doi: 10.1016/j.jenvman.2023.118192. Epub 2023 Jun 6.
Three-dimensional biofilm electrode reactors (3D-BERs) have attracted extensive attention in recent years due to their wide application range, high efficiency and energy saving. On the basis of traditional bio-electrochemical reactor, 3D-BERs are filled with particle electrodes, also known as the third electrodes, which can not only be used as a carrier for microbial growth, but also improve the electron transfer rate of the whole system. This paper reviews the constitution, advantages and basic principles of 3D-BERs as well as current research status and progress of 3D-BERs in recent years. The selection of electrode materials, including cathode, anode and particle electrode are listed and analyzed. Different constructions of reactors, like 3D-unipolar extended reactor and coupled 3D-BERs are introduced and discussed. Various contaminants degraded by 3D-BERs including nitrogen, azo dyes, antibiotics and the others are calculated and the corresponding degradation effects are described. The influencing factors and mechanisms are also introduced. At the same time, according to the research advances of 3D-BERs, the shortcomings and weakness of this technology in the current research process are analyzed, and the future research direction of this technology is prospected. This review aims to summarize recent studies of 3D-BERs in bio-electrochemical reaction and open a bright window to this booming research theme.
近年来，三维生物膜电极反应器（3D-BER）因其应用范围广泛、高效节能等优点受到了广泛关注。在传统生物电化学反应器的基础上，3D-BER 中填充了颗粒电极，也称为第三电极，不仅可以作为微生物生长的载体，还可以提高整个系统的电子传递速率。本文综述了 3D-BER 的组成、优点和基本原理，以及近年来 3D-BER 的研究现状和进展。列出并分析了电极材料的选择，包括阴极、阳极和颗粒电极。介绍并讨论了不同的反应器结构，如 3D-单极扩展反应器和耦合 3D-BER。计算了 3D-BER 降解的各种污染物，包括氮、偶氮染料、抗生素等，并描述了相应的降解效果。介绍了影响因素和作用机制。同时，根据 3D-BER 的研究进展，分析了该技术在当前研究过程中的缺点和不足，并对该技术的未来研究方向进行了展望。本文旨在总结生物电化学反应中 3D-BER 的最新研究进展，为这一蓬勃发展的研究主题开辟一个光明的窗口。
