水厂水处理过程中消毒副产物变化的研究  

VARIATION OF DISINFECTION BYPRODUCTS (DBPs) IN WATER TREATMENT PLANT

作　　者：黄廷林[1] 张晋珠[1] 邸尚志 阎晓芸 周军 曹乐卫 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055 [2]西安市自来水总公司,陕西西安710082

出　　处：《水处理技术》2007年第8期26-29,共4页Technology of Water Treatment

基　　金：陕西省自然科学基金项目(2002E214);北京市水质科学与水环境恢复工程重点实验室开放课题

摘　　要：以西安市曲江、南郊水厂为监测对象,对水处理过程中有机物、三卤甲烷(THMs)及其前体物的变化情况进行了分析研究。结果表明:水源水中未检出三卤甲烷,经处理后出厂水中三卤甲烷总量为4～17μg/L,主要为三氯甲烷和二氯一溴甲烷;预氯化对出厂水消毒副产物(DBPs)的贡献率为50%;预氯化、后氯化及停留时间是影响水处理过程中DBPs生成量的主要因素;常规水处理工艺对THMs前体物的去除率为40%左右。A study of the variation of organic matter,trihalomethanes（THMs） and THMs precursors during water treatment process was carried out in Qujiang and Nanjiao waterworks of Xi＇an City of China. The results showed that THMs was undetected in Xi＇an source water and THMs was about 4-17μg/L in treated water, being mainly CHCl3 and CHCl2Br in it. The Contribution rate ofpre-chlorination to DBPs in the factory＇s effluent was 50%. Pre-chlorination,post- chlorination and hydraulic residence time were the main ,factors affecting DPBs generation in the course of water treatment. The removal rates of THMs precursors in conventional water treatment proceses was about 40%.

关 键 词：消毒副产物 三卤甲烷 三卤甲烷前体物 常规水处理工艺 

分 类 号：TU991.2[建筑科学—市政工程]