摘要

  考虑到其高效、低能耗的优点，电化学（EC）技术尤其是生物电化学系统（BES）已被广泛应用于减少废水中的不同抗生素。与污水处理厂相比，BES 通过形成较少量的污泥来避免抗生素抗性基因 (ARG) 的传播。然而，跨膜通透性和膜电位可能会受到电刺激的影响，从而导致 BES 中抗生素抗性细菌 (ARB) 和 ARG 的增加。这项工作讨论了使用 EC 技术，尤其是 BES 来减少抗生素以及 ARB 和 ARG 在此类系统中的命运。 BES可以有效去除抗生素。然而，在 BES 中抗生素治疗期间，低电流促进了 ARG 的垂直和水平转移。 ARB 和 ARGs 可以被更高的电流抑制。提出了有关 BES 在抗生素去除中的潜在作用以及废水中 ARG 和 ARB 的后续归宿的问题。需要进一步的研究来阐明主要的 ARG 转移机制并充分了解 BES 的优势。

   Taking into account its merits in terms of high efficiency and low energy consumption, electrochemical (EC) technology especially bioelectrochemical system (BES) has been applied largely in reducing different antibiotics from wastewater. BES averts the spread of antibiotic resistance genes (ARGs) via forming less quantity of sludge compared with wastewater treatment plants. Nevertheless, transmembrane permeability and membrane potential could be influenced by the electrical stimulation, conducting to augmentations in the antibiotic-resistant bacteria (ARB) and ARGs in BES. This work discusses the utilization of EC technology especially BES for antibiotic reduction and the fate of ARB and ARGs in such systems. BES can effectively remove antibiotics. Nevertheless, low electric current promotes vertical and horizontal ARGs transfer during the treatment of antibiotics in BES. ARB and ARGs could be inhibited by a higher electric current. Questions regarding the potential role of BES in antibiotic removal and the consequent fate of ARGs and ARB in wastewater are presented. Further research is needed to elucidate the primary ARG transfer mechanism and to fully understand the advantages of BESs.

  https://www.scirp.org/journal/paperinformation.aspx?paperid=102452