饮用水中卤代苯醌类消毒副产物生成影响研究  

Research on influential factors of halobenzoquinones disinfection by-products in drinking water

作　　者：张若琳 曹康玲 满涛 王永京[1,2,3] 张明露[1,2,3] 王攀[1,2,3] 任连海[1,2,3] 李成 ZHANG Ruolin;CAO Kangling;MAN Tao;WANG Yongjing;ZHANG Minglu;WANG Pan;REN Lianhai;LI Cheng(I.School oj Ecology and Environment^Beijing Technology and Business University,Beijing 100048,China;Key of Cleaner Production and Integrated Resource Utilization of China National Light Industry,Beijing Technology and Business University,Beijing 100048,Chirm;State Environtnental Protection Key Laboratory of Food Chain Pollution Controls Beijing Technology and Business University j Beijing 100048,China;Beijing Research Center for Agricultural Standards and Testing^Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097,China)

机构地区：[1]北京工商大学生态环境学院,北京100048 [2]中国轻工业清洁生产和资源综合利用重点实验室,北京工商大学,北京100048 [3]国家环境保护食品链污染防治重点实验室.北京工商大学,北京100048 [4]北京农业质量标准与检测技术研究中心,北京市农林科学院,北京100097

出　　处：《给水排水》2021年第7期5-11,共7页Water & Wastewater Engineering

基　　金：国家自然科学基金(42007350);北京市自然科学基金(8202010)。

摘　　要：针对近年发现的可能导致膀胱癌的新型消毒副产物(DBPs)卤代苯醌(HBQs),研究了不同地区管网末端水中卤代苯醌的存在情况,以及不同前体物、pH、氯投加量及溴离子浓度对卤代苯醌生成的影响。结果表明,多数管网末端出水中可检出2,6-二氯苯醌(2,6-DCBQ),浓度范围为6.28~10.75ng/L,2,6-二溴苯醌(2,6-DBBQ)均未检出。腐殖酸、富里酸及酚类化合物氯化过程中能够生成HBQs。以双酚A(BPA)为前体物时,2,6-DCBQ的生成量随pH的提高先升高再降低,pH为6,反应时间为4h时2,6-DCBQ的生成量最高为393.30μg/L。2,6-DCBQ的生成量随氯的投加量增加而增加,投加量超过0.50mmol/L时,2,6-DCBQ的生成量随投加量的增加而减小。提高溴离子浓度后2,6-DBBQ的生成量逐渐升高,2,6-DCBQ的生成量逐渐降低,溴离子浓度为1000μg/L时,2,6-DBBQ的生成量最大,为131.67μg/L。Halobenzoquinones(HBQs)is a new and uncontrolled disinfection by-product(DBPs),which may lead to bladder cancer.The occurrence in the distribution systems of different areas and the impact of precursors,pH,the chlorine does and the bromide concentration on the formation of halobenzoquinone were studied.It displayed that 2,6-dichloro-1,4-benzoquinone(2,6-DCBQ)could be detected in distribution system water,with the concentration range of 6.28~10.75 ng/L,and 2,6-dibromo-1,4-benzoquinone(2,6-DBBQ)was not detected.Humic acid,fulic acid and phenolic were the potential precursors of HBQs.When bisphenol A(BPA)was used as precursor,the production of 2,6-DCBQ increased firstly and then decreased with the increase of pH.As the pH was 6 and the reaction time was 4 h,the most 2,6-DCBQ was produced,reaching393.30μg/L.The 2,6-DCBQ yield was promoted as the chlorine dosage increased,while lower 2,6-DCBQ concentration was obtained when the chlorine dosage was higher than 0.50 mmol/L.The increase of bromide concentration induced the gradually increase of 2,6-DBBQ and the decrease of2,6-DCBQ formation.As the bromide concentration was 1000μg/L,the maximum of 2,6-DBBQ concentration was obtained,which was 131.67μg/L.

关 键 词：卤代苯醌 消毒副产物 影响因素 饮用水 前体物 

分 类 号：TU991[建筑科学—市政工程]