串联补给式微生物燃料电池加速处理含铜废水

发布时间：2018-03-05 13:10

本文选题：微生物燃料电池　切入点：含铜废水　出处：《环境工程学报》2017年05期 　论文类型：期刊论文

【摘要】：微生物燃料电池(microbial fuel cells,MFC)可用于处理有机废水并同时处理污水中的重金属。为了对MFC处理含铜废水进行优化,采用了KMnO_4-MFC与Cu-MFC串联,通过前者产生的较高电压对后者处理含铜废水过程提供电压和功率的补给并获得额外电能,结果表明,KMnO_4-MFC在KMnO_4浓度为0.5、1、2 g·L~(-1)时输出最大功率密度分别为288、433、700 mW·m~(-2),而Cu-MFC在Cu~(2+)浓度为10 mg·L~(-1)时最大功率密度仅为218.75 mW·m~(-2),二者串联能够明显加快Cu-MFC对Cu~(2+)的回收速率,串联时Cu~(2+)的回收率可达98%,24 h回收率可达91.7%,与单独Cu-MFC相比速率提高1倍。串联后,该种方法在加速铜回收过程的同时还能获得额外的电能,其最高输出功率可达143 mW。
[Abstract]:Microbial fuel cells can be used to treat organic wastewater and treat heavy metals in wastewater at the same time. In order to optimize MFC treatment of copper-containing wastewater, KMnO_4-MFC and Cu-MFC are used in series. The higher voltage generated by the former provides voltage and power to the latter for the treatment of copper-containing wastewater and generates additional electrical energy, The results show that the maximum power density of KMnO4-MFC is 288,433,700 MW 路mL ~ (-2) when KMnO_4 concentration is 0.5 mg 路L ~ (-1), while that of Cu-MFC is only 218.75 MW 路m ~ (-2) when Cu~(2 is 10 mg 路L ~ (-1). The recovery rate of Cu~(2 in series can reach 91.7% in 24 h, which is twice as high as that of single Cu-MFC. After series, the process of copper recovery can be accelerated and additional electric energy can be obtained, and the highest output power can be up to 143mW.
【作者单位】：北京化工大学北京市水处理环保材料工程技术研究中心;河北出入境检验检疫局检验检疫技术中心曹妃甸分中心;
【基金】：国家国际科技合作专项(2013DFR60250) 国家自然科学基金资助项目(51408020) 北京市科技计划项目(Z15111000210000) 中央高校基本科研业务费(JD1503)
【分类号】：X703;TM911.45

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