FeS对CW-MFC系统降解活性艳红X-3B效果及过程的影响  

Effect of FeS on reactive brilliant red X-3B removal effect and degradation process in CW-MFC system

作　　者：赵联芳[1,2] 于雪晴 路宗仁 刘成[1] 李颖[1] ZHAO Lian-fang;YU Xue-qing;LU Zong-ren;LIU Cheng;LI Ying(College of Environment,Hohai University,Nanjing 210098,China;Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake,Ministry of Education,Nanjing 210098,China;Shanghai Survey and Design Research Institute Co.,Ltd,Shanghai 200335,China)

机构地区：[1]河海大学环境学院,江苏南京210098 [2]浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098 [3]上海勘测设计研究院有限公司,上海200335

出　　处：《中国环境科学》2022年第7期3093-3102,共10页China Environmental Science

基　　金：江苏省科技支撑计划重点项目(BE2016357)。

摘　　要：在自行构建的人工湿地-微生物燃料电池(CW-MFC)系统中,以砾石填料为对照,研究了FeS对活性艳红X-3B脱色效果及降解过程的影响.结果表明,加在底层区域的FeS能够显著提高CW-MFC对活性艳红X-3B的脱色效果和系统产电性能.FeS的投加使得系统脱色率在进水活性艳红X-3B浓度200mg/L、葡萄糖浓度100mg/L条件下达到99.83%.在进水活性艳红X-3B浓度100mg/L、葡萄糖浓度200mg/L条件下,FeS组最大功率密度达到0.849W/m^(3).活性艳红X-3B在系统中的脱色主要发生在底层和阳极区域,由紫外-可见全波长扫描图谱和GC-MS扫描图谱可知FeS在该区域促进了偶氮双键的断裂,并有利于脱色产物苯胺、三嗪结构、萘环结构的进一步降解.In the self-constructed wetland-microbial fuel cell(CW-MFC),the effect of FeS on the decolorization and degradation process of reactive brilliant red X-3B was studied by using gravel filter as a control.The results showed that the addition of FeS in the underlying region could significantly improve the decolorization effect and the system electricity generation performance of CW-MFC on reactive brilliant red X-3B.The addition of FeS made the system decolorization rate reach 99.83%under the conditions of influent of 200mg/L reactive brilliant red X-3B and glucose of 100mg/L.The maximum power density in FeS group reached 0.849W/m^(3)with influent of 100mg/L reactive brilliant red X-3B and glucose of 200mg/L.The decolorization of reactive brilliant red X-3B in the system mainly occurred in the bottom layer and anode regions,which could be seen from the UV full-wavelength scanning and GC-MS spectrum that FeS promoted the breakage of azo double bonds in this region,and was conducive to the further degradation of the decolorization products aniline,triazine structure and naphthalene ring structure.

关 键 词：人工湿地微生物燃料电池 活性艳红X-3B FES 脱色效果 降解过程 

分 类 号：X703[环境科学与工程—环境工程]