四溴双酚A厌氧共代谢降解性能研究  

Study on the anaerobic co-metabolic biodegradation of tetrabromobisphenol A

作　　者：陈英文 范梦婕[2] 孙靖云 沈树宝[2] CHEN Ying-wen;FAN Meng-jie;SUN Jing-yun;SHEN Shu-bao(State Key Laboratory of Petroleum Pollution Control,Beijing 102206;College of Biological and Pharmaceutical Engineering,Nanjing Tech University,Nanjing 210009,China)

机构地区：[1]石油石化污染物控制与处理国家重点实验室,北京102206 [2]南京工业大学生物与制药工程学院,江苏南京210009

出　　处：《中国环境科学》2018年第4期1459-1465,共7页China Environmental Science

基　　金：石油石化污染物控制与处理国家重点实验室开放课题(PPC2016017);江苏省自然科学基金资助项目(BK20171466);国家自然科学青年基金资助项目(51608261)

摘　　要：基于厌氧共代谢原理构建反应器,分析厌氧共代谢强化四溴双酚A(TBBPA)的转化机理.研究发现,当TBBPA浓度为75μg/L时,TOC和TBBPA去除率都达到最高,分别为88.6%和81.7%;当TBBPA浓度为25μg/L时,生物半衰期最低,为21.97h.根据检测到的中间代谢单环产物3,4-二甲氧基苯甲酸甲酯和TBBPA代谢途径分析可推测TBBPA在厌氧共代谢体系中实现了深度降解,且固氮弧菌属和毛球菌属对TBBPA的厌氧生物降解起到了主要作用.The biodegradation of Tetrabromobisphenol A(TBBPA)using anaerobic co-metabolism was carried out and the mechanism was also explored deeply.When influent TBBPA concentration was 75μg/L,the excellent performance was obtained with TOC and TBBPA removal efficiencies of 88.6%and 81.7%respectively.The half-life of TBBPA was calculated to be 21.97h at TBBPA concentration of 25μg/L.For further study,the intermediary metabolism substances were analyzed,and methyl-3,4-dimethoxybenzoate was detected and considered as the important single benzene ring metabolite of TBBPA,which meant the TBBPA was biodegraded deeply.Simultaneously,the microbial diversity analysis demonstrated Azoarcus and Trichococcus species were responsible for the biodegradation of TBBPA in anaerobic co-metabolism system.

关 键 词：四溴双酚A 厌氧共代谢 生物降解 

分 类 号：X172[环境科学与工程—环境科学] X592