双室微生物燃料电池对电解锰废水中Cr(VI)的去除及其产电性能研究  

Removal of Cr(VI) from electrolytic manganese wastewater and electricity production by dual-chamber microbial fuel cell

作　　者：何则强 张蕊[2] 龙秋萍 万祖杨 谢彪 熊利芝 HE Ze-qiang;ZHANG Rui;LONG Qiu-ping;WAN Zu-yang;XIE Biao;XIONG Li-zhi(College of Materials and Chemical Engineering,Hunan City University,Yiyang 413000,China;College of Biology and Environmental Sciences,Jishou University,Jishou 416000,China)

机构地区：[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

出　　处：《中国有色金属学报》2018年第9期1937-1947,共11页The Chinese Journal of Nonferrous Metals

基　　金：国家自然科学基金项目(51472107;51672104);湖南省自然科学基金项目(2017JJ2216);湖南省重点学科建设项目(JSU0713);湖南省高校科技创新团队支持计划项目;吉首大学校级项目(JDZ201503;Jdy16013;Jdx16016;Jdx16017);生态旅游湖南省重点实验室开放项目(JDSTLY1612);湖南省大学生研究性学习与创新性实验计划项目(湘教通2017[205]号-406);矿物清洁生产与绿色功能材料开发湖南省重点实验室开放项目(MCPEGFM2006010);杜仲综合利用技术国家地方联合工程实验室(NLE201603)~~

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-Cr_2O_3,而155h处理后还原率可达100%,产电功率达到914.7 mW/cm^2,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。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.

关 键 词：电解锰废水 六价铬 微生物燃料电池 产电性能 

分 类 号：X703.1[环境科学与工程—环境工程]