Plant-SMFC修复富营养化水体及底泥的效果研究  

Remediation of Eutrophic Water and Sediment by Plant-SMFC

作　　者：吴卿[1] 付利娟 焦士埔 马梦醒 彭森[1] WU Qing;FU Li-juan;JIAO Shi-pu;MA Meng-xing;PENG Sen(School of Environmental Science and Technology,Tianjin University,Tianjin 300350,China)

机构地区：[1]天津大学环境科学与工程学院,天津300350

出　　处：《中国给水排水》2020年第3期16-21,共6页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2014ZX07203-009)。

摘　　要：为探讨植物沉积型微生物燃料电池(Plant-SMFC)对富营养化水体和底泥中污染物的去除效果及其产电能力,搭建了5组试验装置,考察了植物类型、阳极材料和石墨烯修饰对PlantSMFC系统的影响。结果表明,3个因素对Plant-SMFC系统产电能力的影响顺序为:植物>石墨烯修饰>阳极材料。由菖蒲-石墨烯修饰碳毡构成的Plant-SMFC系统产电能力和污染物去除效果最好,其输出电压为0.31 V,对上覆水中COD、氨氮、总氮、总磷的去除率分别为85.6%、99.1%、89.9%、86.5%,对沉积物中阳极周围有机质和总氮的去除率分别为12.7%、92.2%,对总磷的固定率为26.1%。Plant-SMFC系统对富营养化水体及底泥中的有机物、氮、磷等污染物具有一定的降解能力,应用前景广阔。To investigate the removal effect of pollutants in eutrophic water and sediment by plant-sediment microbial fuel cell (Plant-SMFC) and its power generation capacity,five experimental devices were constructed and the effects of plant type,anode material and graphene modification on the PlantSMFC system were researched. The influence order of the three factors on power generation capacity of Plant-SMFC was as follows: plant type > graphene modification > anode material. The Plant-SMFC composed of Acorus calamus and graphene had the best power generation performance and pollutant removal effect,and the output voltage was 0. 31 V. The removal rates of COD,ammonia nitrogen,total nitrogen and total phosphorus in the overlying water were 85. 6%,99. 1%,89. 9% and 86. 5%,respectively. The removal rates of organic matter and total nitrogen around the anode in the sediment were 12. 7% and 92. 2%,and the fixation rate of total phosphorus was 26. 1%. Plant-SMFC had a certain ability to degrade organic matter,nitrogen,phosphorus and other pollutants in eutrophic water and sediment,which had a broad application prospect.

关 键 词：植物沉积型微生物燃料电池 富营养化水体 底泥 修复 

分 类 号：TU992[建筑科学—市政工程]