利用微生物燃料电池同步降解沼液和三苯基氯化锡

发布时间：2017-12-27 19:37

本文关键词：利用微生物燃料电池同步降解沼液和三苯基氯化锡　出处：《化工学报》2016年05期 　论文类型：期刊论文

【摘要】：微生物燃料电池(MFC)作为一种同步产电和除污的新型电化学装置,为有效处理难降解有机污染物提供了一种途径。基于阴极Fenton反应,提出了一种耦合典型双室MFC中阳极沼液产电及阴极降解有机锡的新方法。结果表明,阳极产电生物膜经驯化后MFC的最高电压提高了50.32%,而且电压稳定时间延长了1倍。MFC运行结束后,阳极沼液COD、总氮、总磷的去除率分别为85.35%±1.53%、59.20%±5.24%、44.98%±3.57%。阴极三苯基氯化锡(TPTC)的降解率随其初始浓度增加而降低。在添加100μmol·L~(-1) TPTC时,MFC的最高输出电压为280.2m V,最大功率密度为145.62 m W·m-2。TPTC在14 d后完全降解,降解效率为91.88%,降解速率约为0.273μmol·L~(-1)·h~(-1)。研究结果可为利用MFC同步处理阳极有机废水和阴极有机污染物的实际应用提供基础支持。
[Abstract]:Microbial fuel cell (MFC), as a new electrochemical device that synchronously produces electricity and decontamination, provides a way for the effective treatment of refractory organic pollutants. Based on the cathodic Fenton reaction, a new method is proposed for the coupling of anode biogas production and cathodic degradation of organotin in a typical double chamber MFC. The results showed that the highest voltage of MFC was increased by 50.32% after acclimation, and the voltage stability time was prolonged by 1 times. After the operation of MFC, the removal rates of COD, total nitrogen and total phosphorus in the anodic slurry were 85.35% + 1.53%, 59.20% + 5.24% and 44.98% + 3.57% respectively. The degradation rate of the cathodic three phenyl tin chloride (TPTC) decreased with the increase of its initial concentration. When adding 100 mol / L~ (-1) TPTC, the maximum output voltage of MFC is 280.2m V, and the maximum power density is 145.62 m W. M-2. After 14 d, TPTC was completely degraded, the degradation efficiency was 91.88%, and the degradation rate was about 0.273 Mu mol. L~ (-1). H~ (-1). The research results can provide the basic support for the application of MFC to the practical application of the anode organic wastewater and the cathode organic pollutants.
【作者单位】：南京工业大学生物与制药工程学院;南京工业大学生物能源研究所;中国科学院广州能源研究所;
【基金】：国家重点基础研究发展计划项目(2013CB733904) 江苏省自然科学基金项目(BK20130932) 江苏省高校自然科学研究项目(13KJB530009) 中国科学院环境与应用微生物重点实验室专项研究基金计划(KLEAMCAS201503)~~
【分类号】：TM911.45
【正文快照】： 引言微生物燃料电池(microbial fuel cell,MFC)是利用产电微生物的分解代谢将贮存在有机物中的化学能转化为电能的生物电化学装置[1-3]。产电菌分解底物生成的电子经外电路传递到阴极,被阴极的电子受体(如O2)消耗,从而产生电流[4]。前期MFC的研究主要致力于提高其产电性能,包

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