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去除抗生素的生物电化学系统综述:高效去除抗生素和传播抗生素抗性基因

发布者:抗性基因网 时间:2021-06-01 浏览量:547

    摘要

    鉴于其在高效率和低能耗方面的优势,生物电化学系统(BES)已广泛应用于从废水中去除各种抗生素。与废水处理厂相比,BES可产生更少的污泥,从而避免了抗生素抗性基因(ARG)的扩散。但是,电刺激会影响跨膜的通透性和膜电位,从而导致BES中抗生素抗性细菌(ARB)和ARGs的增加。基于有限的已发表著作,本综述的主要目的是总结BES在抗生素去除中的应用以及此类系统中ARB和ARGs的命运。 BES可以有效去除抗生素。但是,低电流会促进BES抗生素治疗期间垂直和水平ARGs的转移。很有希望,较高的电流可以抑制ARB和ARG。这项研究提出了有关BES在抗生素去除中的潜在作用以及废水中ARGs和ARB的最终命运的疑问。

     Given its advantages in terms of high efficiency and low energy consumption, bioelectrochemical system (BES) has been applied widely in the removal of various antibiotics from wastewater. BES avoids the proliferation of antibiotic resistance genes (ARGs) by producing less amount of sludge compared with wastewater treatment plants. However, transmembrane permeability and membrane potential can be affected by the electrical stimulation, resulting in increases in the antibiotic-resistant bacteria (ARB) and ARGs in BES. Based on limited published works available, the main objective of this review is to summarize the applications of BES for antibiotic removal and the fate of ARB and ARGs in such systems. Antibiotics can be effectively removed by BES. However, low electric current promotes vertical and horizontal ARGs transfer during the treatment of antibiotics in BES. Promisingly, ARB and ARGs could be inhibited by a higher electric current. This study raises questions regarding the potential role of BES in antibiotic removal and the consequent fate of ARGs and ARB in wastewater.

    https://www.sciencedirect.com/science/article/abs/pii/S2214714420302993