(1. 湖南城市学院 材料与化学工程学院，益阳 413000；
2. 吉首大学 生物资源与环境科学学院，吉首 416000)
摘 要: 构建以F026为阳极产电菌和含Cr(VI)电解锰废水为阴极液的双室微生物燃料电池(MFC)。考察电解锰模拟废水pH、Cr(VI)初始质量浓度、MFC运行温度等因素对废水中Cr(VI)的还原率及MFC产电效果的影响规律，并对最优条件下MFC处理实际电解锰含铬废水的效果和Cr(VI)的还原产物进行研究。结果表明：当废水pH为2、MFC运行温度为303K时，MFC对含Cr(VI)废水具有最佳的处理效果。在此条件下，MFC对Cr(VI)质量浓度为124 mg/L的电解锰废水处理80 h后，92.1%的Cr(VI)可有效还原为α-Cr2O3，而155h处理后还原率可达100%，产电功率达到914.7 mW/cm2，表明MFC是一种发展前景良好的含Cr(VI)电解锰废水处理工艺。
关键字: 电解锰废水；六价铬；微生物燃料电池；产电性能
（1.College of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China;
2. College of Biology and Environmental Sciences, Jishou University, Jishou 416000, China）
Abstract:A dual-chamber microbial fuel cell (MFC) was constructed with F026 as electricigen and Cr(VI) containing electrolytic manganese wastewater as catholyte. The influences of pH, initial Cr(VI) concentration of simulated electrolytic manganese wastewater and operating temperature of MFC on the reduction rate of Cr(VI) and electricity generation of MFC were investigated. The results show that when the pH is 2 and operating temperature is 303K, the optimal treatment effect by MFC can be achieved. Under these conditions, 92.1% of Cr(VI) is reduced to Cr2O3 in 80 h, and the complete Cr(VI) reduction and more than 914.7 mW/m2 powder density are obtained in 155 h for the real electrolytic manganese wastewater with Cr(VI) concentration of 124 mg/L, indicating that MFC may be a promising technology for the treatment of Cr(VI) containing electrolytic manganese wastewater.
Key words: electrolytic manganese wastewater; Cr(VI); microbial fuel cell; electricity generation
