微生物燃料电池对膜生物反应器系统节能降耗的影响  

The Influence of MFC on Energy-saving and Cost-reduction of MBR System

作　　者：景瑞瑛 王思昊 王健 万鹏 黄奕龙 

机构地区：[1]广东省水务大数据与水生态工程技术研究中心 [2]深圳市水务规划设计院股份有限公司 [3]清华大学深圳国际研究生院

出　　处：《节能与环保》2024年第11期46-54,共9页Energy Conservation ＆ Environment Protection

基　　金：广东省住房和城乡建设厅科技创新计划(2023-K40-540430);深圳市科技计划项目(JSGG20210802153010033)。

摘　　要：在膜生物反应器(MBR)系统上负载双室型微生物燃料电池(MFC),比较其与传统MBR的COD去除效果以及其节能降耗效果。分析结果表明,相比传统MBR系统,MFC-MBR系统中COD去除率为91.5%,提高3.2%。MFC的最大功率密度值为41.7mW/m^(2),库伦效率达到53.1%,且阳极交换电流密度为3.3×10^(-2)A/m^(2),因此该MFC具有较高的微生物产电活性和电子传递速率。MBR系统中污水泵、搅拌器、空气泵及膜清洗的耗电量分别为0.179kW·h/d、0.004kW·h/d、0.396kW·h/d及0.020kW·h/d,得到吨水能耗量为1.248kW·h/t;而MFC-MBR系统中空气泵及膜清洗的耗电量降低为0.277kW·h/d及0.009kW·h/d,得到吨水能耗量降低为0.978kW·h/t,实现节能21.6%的效果。The MBR system was loaded with dual chamber MFC,and its membrane pollution and pollutant removal efficiency were compared with that of traditional MBR,as well as its energy-saving and cost-reduction effect.The results showed that,compared with the traditional MBR system,the COD removal rate was 91.5%,increased 3.2%.The maximum power density of MFC was 41.7 mW/m^(2),the Coulomb efficiency was 53.1%,and the anode exchange current density was 3.3×10-2A/m^(2),thus the MFC had high microbial electroproduction activity and electron transfer rate.The power consumption of the sewage pump,agitator,air pump and membrane cleaning in the MBR system was 0.179 kW∙h/d,0.004 kW∙h/d,0.396 kW∙h/d and 0.020 kW∙h/d,respectively,resulting in 1.248 kW∙h/t per ton of water;The power consumption of the air pump and membrane cleaning in the MFC-MBR system was reduced to 0.277 kW∙h/d and 0.009 kW∙h/d,resulting in 0.978 kW∙h/t per ton of water,and achieving an energy-saving e ffect of 21.6%.

关 键 词：双室型MFC MBR系统 产电性能 污水处理 节能降耗 

分 类 号：X703[环境科学与工程—环境工程]