微生物燃料电池降解苎麻生物脱胶废水

发布时间：2018-01-24 05:30

本文关键词： 苎麻生物脱胶废水微生物燃料电池生物处理产电　出处：《环境科学与技术》2017年10期 　论文类型：期刊论文

【摘要】：利用苎麻生物脱胶废水作为燃料和接种体,构建并即刻成功地启动了双室微生物燃料电池,利用该微生物燃料电池进行了苎麻生物脱胶废水处理试验。结果表明,在一个反应批次内,COD去除率为55.26%,总糖浓度降低了31.91%,可溶性蛋白质浓度降低了38.71%,p H由6.4上升到6.89,微生物数量降低了50%,FTIR光谱分析进一步证实燃料电池产电的主要来源于废水中的糖类和蛋白质等有机物的氧化降解。微生物燃料电池产生的最大电压为1 096.1 m V(外电阻为2 200Ω),最大功率密度达到36.55 m W/m2,稳定期间内阻约为470Ω。在一个反应批次内,随着废水有机物的逐渐减少,燃料电池的电压随之降低。
[Abstract]:The biofilm biofilm wastewater of Ramie was used as fuel and inoculum to construct and immediately start the biofilm microbial fuel cell. The biological degumming wastewater of Ramie was treated with this microbial fuel cell. The results showed that the removal rate of COD in one batch was 55.26 and the total sugar concentration decreased by 31.91%. The concentration of soluble protein decreased by 38.71% and the amount of microorganism decreased by 50% from 6.4 to 6.89. FTIR spectrum analysis further confirmed that the main source of power generation of fuel cell is the oxidative degradation of organic matter such as sugar and protein in wastewater. The maximum voltage produced by microbial fuel cell is 1 096.1 m. V (. The external resistance is 2 200 惟). The maximum power density is 36.55 MW / m ~ 2, and the internal resistance is about 470 惟 during the stabilization period. In a reaction batch, the voltage of fuel cell decreases with the decrease of organic matter in wastewater.
【作者单位】：东华大学环境科学与工程学院;武汉纺织大学纺织印染清洁生产教育部工程研究中心;
【基金】：国家自然科学基金(21377023) 国家科技支撑计划项目(2012BAD36B03)
【分类号】：X703
【正文快照】： 传统的苎麻化学脱胶技术主要采用碱液煮炼,大量使用强酸强碱在高温高压条件下进行脱胶,存在用水量大、能耗高、环境污染严重[1-2]和废水难以处理等诸多问题,因此,越来越多的研究投向了苎麻生物脱胶技术[3-4]。苎麻生物脱胶技术是目前苎麻产业正在大力推广的一种新型清洁生产技

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