空气阴极微生物燃料电池处理模拟酸性矿井水的研究  

Study on the treatment of simulated acid mine drainage using air cathode microbial fuel cell

作　　者：戚甫长 蔡昌凤[1] 江林[1] 李祝宁 

机构地区：[1]安徽工程大学生物与化学工程学院,安徽芜湖241000

出　　处：《安徽工程大学学报》2014年第3期1-4,8,共5页Journal of Anhui Polytechnic University

基　　金：国家自然科学基金资助项目(52174001);煤炭资源与安全开采国家重点实验室开放课题基金资助项目(SKLCRSM10KFA05)

摘　　要：酸性矿井水因pH值低、重金属离子含量高,难以直接采用硫酸盐还原菌生化处理.试验构建了空气阴极微生物燃料电池系统来处理酸性矿井水,有效处理废水H+和重金属离子,同时还能产电.构建的空气阴极微生物燃料电池系统(污泥量40mL,硫酸盐还原菌30mL,阳极材料为碳布,室温)的最大功率密度达到82.24mW/m2,最大电压为332.2mV;硫酸根的最大去除率达到41.6,对Zn2+、Cu2+、Cd2+和Fe2+的去除率分别达到83.7%、77.4%、84.2%和66.8%,化学需氧量的最大去除率达到60.9%.分析认为,空气阴极微生物燃料电池有效处理废水H+,弱化了H2S的生物抑制作用,强化了硫酸盐还原菌还原产生的S2-与重金属离子生成硫化物,并经能谱分析加以验证.Acid mine drainage （AMD） with low pH and high metal ions is difficult and costly to treat by sulfate reducing bacteria . Air cathode microbial fuel cell （MFC） is constructed to treat AMD and re- move H＋. It can treat wastewater while producing electricity. The maximum power density was 82.24 mW/mz, maximum voltage was 332.2 mV; maximum removal of sulfate was 41.6%, Zn2＋, Cu2＋ , Cd2＋and Fe2＋ removal rates were 83.7%, 77.4%, 84.2% and 66.8% respectively and maximum percent removal of chemical oxygen demand （COD） 60.9% are obtained in MFC （activated sludge 40 mL, SRB 30 mL, carbon cloth as anode material, room temperature） . It is conclnded that air cathode microbial fuel cell can effectively remove H＋, weaken the inhabitation of HzS on the bacteria and strengthen the forming of sulfide using metal ions, which are tested and proved by Energy Dispersive Spectrometer （EDS）.

关 键 词：酸性矿井水 空气阴极 微生物燃料电池 

分 类 号：X752[环境科学与工程—环境工程]