多孔火山岩制备新型复合阳极材耦合微生物燃料电池电化学强化废水脱氮除磷  

Preparation of New Composite Anode Material from Porous Volcanic Rock Coupled with Microbial Fuel Cell for Electrochemical Enhancement of Nitrogen and Phosphorus Removal from Wastewater

作　　者：张元浩 高常飞 刘珂萌 王红波 Zhang Yuanhao;Gao Changfei;Liu Kemeng;Wang Hongbo(School of Environment and Material Engineering,Yantai University,Yantai 264005,China)

机构地区：[1]烟台大学环境与材料工程学院,山东烟台264005

出　　处：《广东化工》2022年第20期118-120,132,共4页Guangdong Chemical Industry

基　　金：山东省重大创新工程项目(2019JZZY020234);山东省自然科学基金面上新项目(ZR2020MB115);烟台大学大学生创新创业训练计划。

摘　　要：本研究在污泥生物炭中掺杂氮,经高温灼烧后利用PVDF附着在粗糙多孔的火山岩表面,实现对微生物燃料电池(MFC)中阳极材料的改性,并使用普通未有氮掺杂的活性炭作为对照组的阳极材料。制备的氮掺杂的阳极材料具有良好的生物附着性、较大的电化学反应活性面积。改性后的MFC在稳定运行一段时间后,其周期内最高输出电压达到0.666 V,最大输出功率密度达到0.13 W/m^(2)。氮掺杂污泥生物炭改性后的阳极材料辅助MFC开展模拟有机废水的处理,化学需氧量(COD)、氨氮(NH_(4)^(+)-N)、总磷(TP)的去除效率分别为87.1%、77.7%和93.5%。研究结果表明采用氮掺杂污泥生物炭的火山岩辅助MFC,不仅具有良好的产电性能,对有机废水中处理中也表现出优异的处理效果,该研究利用污泥和火山岩大大降低了阳极材料的制备成本,增加了微生物的附着面积,提高了MFC的产电性能,应用前景广阔。In this study, the anode material in microbial fuel cell(MFC) was modified by doping nitrogen in sludge biochar and using PVDF to attach to rough and porous volcanic rock surface after high temperature burning, and ordinary activated carbon without nitrogen doping was used as the control anode material. The prepared nitrogen-doped anode material has good biological adhesion and large electrochemical reactive area. After the modified MFC runs stably for a period of time, its maximum output voltage reaches 0.666 V and its maximum output power density reaches 0.13 W/m^(2). The removal efficiency of Chemical Oxygen Demand(COD), Ammonia Nitrogen(NH_(4)^(+)-N) and Total Phosphorus(TP) were 87.1 %, 77.7 % and 93.5 %, respectively. Research results show that the volcanic rocks with nitrogen doping sludge biochar auxiliary MFC, not only has good electrical production, processing in organic wastewater treatment is also show the excellent treatment effect, the study and utilization of sludge and volcanic rock greatly decrease the cost of the preparation of the anode material, increased the microbial adhesion area, improve the production performance of MFC, the broad application prospect.

关 键 词：环境电化学 微生物燃料电池 火山岩 污泥 阳极材料改性 有机废水处理 

分 类 号：TQ[化学工程]