湿地型微生物燃料电池处理废水及同步产电研究

发布时间：2018-03-03 02:08

本文选题：微生物燃料电池　切入点：人工湿地　出处：《现代化工》2017年06期 　论文类型：期刊论文

【摘要】：利用芦苇构建单室湿地阴极型升流式微生物燃料电池(microbial fuel cell-constructed wetland,MFC-CW),研究阴极基质材料的种类、粒径及进水COD浓度对MFC-CW的产电和污水净化性能的影响。结果表明,阳极基质材料为2~4 mm颗粒活性炭,阴极基质材料为4~8 mm颗粒石墨时,电池性能最佳,最大输出电压为318 m V(外电阻为1 000Ω),最大功率密度达到0.197 W/m~3,库伦效率为2.1%。阴极基质材料的种类和粒径对MFC-CW的污水净化性能的影响较小,COD去除率均在80%左右。进水COD浓度是影响MFC-CW运行性能的一项重要参数,系统输出功率密度及COD去除率均随进水COD浓度的增加呈现先上升后下降的趋势,当进水COD浓度在200~300 mg/L时系统整体运行性能最佳。
[Abstract]:The cathode type upflow microbial fuel cell (MFC-CWN) was constructed from Reed in a single chamber wetland. The effects of cathode materials, particle size and influent COD concentration on the power generation and wastewater purification of MFC-CW were studied. When the anode matrix material is 2 ~ 4 mm granular activated carbon and the cathode matrix material is 4 ~ 8 mm granular graphite, the performance of the battery is the best. The maximum output voltage is 318mV (external resistance is 1 000 惟 / m ~ (3), maximum power density is 0.197 W / m ~ (3), Coulomb efficiency is 2.1). The effect of type and particle size of cathode matrix material on the purification performance of MFC-CW wastewater is less than 80%, and the influent rate is about 80%. The concentration of COD is an important parameter affecting the performance of MFC-CW. Both the output power density and the removal rate of COD increased firstly and then decreased with the increase of influent COD concentration. When the influent COD concentration was 200 ~ 300 mg/L, the overall performance of the system was the best.
【作者单位】：哈尔滨工业大学能源科学与工程学院;中国海洋大学环境科学与工程学院;
【基金】：国家留学基金管理委员会资助项目(20120370391)
【分类号】：TM911.45;X703

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