两种不同2,4-二氟苯胺功能菌群的降解性能  

Degradation Characteristics of 2,4-difluoroaniline with Two Different Functional Flora

作　　者：吴燕君 张雨晴 项文杰 陈诺 雷宇芬 赵芝清 WU Yan-jun;ZHANG Yu-qing;XIANG Wen-jie;CHEN Nuo;LEI Yu-fen;ZHAO Zhi-qing(College of Chemical&Material Engineering,Quzhou University,Zhejiang Quzhou 324000,China)

机构地区：[1]衢州学院化学与材料工程学院,浙江衢州324000

出　　处：《广州化工》2021年第1期49-52,共4页GuangZhou Chemical Industry

基　　金：国家级大学生创新创业训练计划项目(201811488020,201911488006,201911488013);浙江省大学生科技创新项目(2019R435003,2018R429001)。

摘　　要：2,4-二氟苯胺(2,4-DFA)为难生物降解的优先控制污染物。接种3种不同驯化污泥,分别采用普通富集法和复筛富集法,进行了功能菌群富集,并考察了其降解性能。结果表明:复筛法富集得到的3种功能菌群具有更好的降解能力,可有效降解300~1800 mg/L的2,4-DFA,且也可有效降解2-氟苯胺、3-氟苯胺、4-氟苯胺、3,4-二氟苯胺和2,3,4-三氟苯胺,目标物去除率和脱氟率分别可达40%~100%和8%~100%。此外,就耐酸、耐碱和重金属耐受能力而言,两种方法富集的菌群各具特色。2,4-difluoroaniline(2,4-DFA)belongs to the priority control pollutant.The functional flora was enriched from three kinds of domesticated sludge by common enrichment method and re-screening enrichment method,respectively.The results showed that the three functional groups enriched by re-screening method had better degradation ability than the functional groups enriched by the common method,which could effectively degrade 300~1800 mg/L of 2,4-DFA.Moreover,the three functional groups enriched by re-screening method could effectively degrade 2-fluoroaniline,3-fluoroaniline,4-fluoroaniline,3,4-difluoroaniline and 2,3,4-trifluoroaniline,with 40%~100%of removal efficiency and 8%~100%of defluorination rate.In additional,the functional flora enriched by two methods had better alkali and heavy metal tolerance.

关 键 词：氟代苯胺 混合菌群 复筛富集法 普通富集法 接种源 

分 类 号：X741[环境科学与工程—环境工程]