In this study, copper removal and electricity generation were investigated in a single-chamber microbial fuel cell (MFC). Result showed that copper was efficiently removed in the membrane-less MFC with removal efficiency of 98.3% at the tolerable Cu²⁺ concentration of 12.5 mg L⁻¹, the corresponding open circuit voltage and maximum power density were 0.78 V and 10.2 W m⁻³, respectively. The mechanism analysis demonstrated that microbial electrochemical reduction contributed to the copper removal with the products of Cu and Cu₂O deposited at biocathode. Moreover, the microbial community analysis indicated that microbial communities changed with different copper concentrations. The dominant phyla were Proteobacteria and Bacteroidetes which could play key roles in electricity generation, while Actinobacteria and Acidobacteria were also observed which were responsible for Cu-resistant and copper removal. It will be of important guiding significance for the recovery of copper from low concentration wastewater through single-chamber MFC with simultaneous energy recovery.

在这项研究中，对单室微生物燃料电池（MFC）中的除铜和发电进行了研究。结果表明，铜在膜-少MFC在可容忍的Cu有效地除去用的98.3％的去除效率²⁺ 12.5毫克的L浓度^-1，对应的开路电压和最大功率密度分别为0.78 V和10.2女男^{- 3}，分别。机理分析表明，微生物电化学还原有助于铜的去除，而铜和Cu ₂ O的产物沉积在生物阴极上。此外，微生物群落分析表明，微生物群落随着铜浓度的变化而变化。优势门是Proteobacteria。细菌和拟杆菌属可能在发电中起关键作用，同时还观察到放线菌和酸性菌对铜的抵抗力和铜的去除负有责任。这对于通过单室MFC同时进行能量回收从低浓度废水中回收铜具有重要的指导意义。