饮用水中常见细菌对氯消毒副产物的影响  

Influence of Common Bacteria in Drinking Water on Chlorine DBPs Formation

作　　者：肖洁雯[1] 周达诚[1] 王保强[1,2] 左鸣[1] 

机构地区：[1]华南理工大学环境科学与工程学院,广东广州510006 [2]香港中文大学生命科学学院

出　　处：《中国给水排水》2013年第3期47-50,共4页China Water & Wastewater

基　　金：国家自然科学基金资助项目(20877024);香港特别行政区研究资助局优配研究金资助项目(477610)

摘　　要：通过对饮用水中常见的两种不同细菌——琼氏不动杆菌(Acinetobacter junii,革兰氏阴性)和松鼠葡萄球菌(Staphylococcus sciuri,革兰氏阳性)在UFC条件下进行加氯消毒试验,分别测定两种细菌的生长曲线、细菌特性的标准曲线、总有机碳(TOC)、不同消毒时间的耗氯量,分析两种细菌耗氯量之间的差别以及吸光度之间的差别,以此推断DBPs产生量的区别,研究不同的细菌种类是否对消毒副产物的产生具有影响。研究结果表明,两种细菌的耗氯量Dt和吸光度差值ΔUV254都随着TOC浓度的增加和反应时间的延长而增大;细菌的单位耗氯量SDt和单位THM生成势都随着反应时间的延长而增加。Two types of bacteria in drinking water （ Gram-negative bacteria Acinetobacter junii and Gram-positive bacteria Staphylococcus sciuri） were killed with chlorine under uniform formation condition （UFC）. The growth curve of two types of bacteria, the standard curve of bacteria characteristics, TOC and chlorine consumption at different disinfection times were measured. The differences of chlorine con- sumption and absorbance between two types of bacteria were analyzed to conclude the DBPs yield. The object of this study was to examine whether different bacteria had impact on DBPs formation. The results showed that the increase in chlorine consumption Dt and AUV254 of the two types of bacteria was propor- tional to the increase in TOC and reaction time. The specific chlorine consumption SDt and specific triha- lomethane formation potential （STHMFP） also increased with reaction time.

关 键 词：消毒副产物 细菌 耗氯量 饮用水 三卤甲烷生成势 

分 类 号：TU991.25[建筑科学—市政工程]