地表水净化工艺原水与滤后水消毒副产物的研究  

DBPs Formation of Raw Water and Filtered Water during Purification Process of Surface Water

作　　者：钟丹[1,2] 袁一星[1,2] 马文成[1,2] 袁媛[1,2] 

机构地区：[1]哈尔滨工业大学城市水资源与水环境国家重点实验室,黑龙江哈尔滨150090 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090

出　　处：《中国给水排水》2015年第3期54-57,共4页China Water & Wastewater

基　　金：国家自然科学基金青年基金资助项目(51108123);中央高校基本科研业务费专项资金资助项目(HIT.NSRIF.201191);城市水资源与水环境国家重点实验室自主课题(2014TS08);国家水体污染控制与治理科技重大专项(2012ZX07408-002-004-002)

摘　　要：通过原水与滤后水的静态试验来研究液氯消毒副产物三卤甲烷（THMs）形成的影响因素。研究结果表明：除了氨氮浓度对THMs的形成具有抑制作用外，有机物浓度、投氯量、溴化物浓度、氯化反应时间、温度、pH值都会促进THMs的形成；UV254更适于作为THMs前体有机物的替代参数；CI2／TOC值〈1时，THMs生成量很少；C12／TOC值=1—4时，氯的衰减量与THMs呈线性关系：当CI2／TOC值〉4时，THMs增加不很明显；随着溴离子浓度的增加，THMs中氯仿的生成量逐渐减少，另外3种溴代卤化烃的生成量增加，尤其是溴仿的生成量大幅度提高。试验结果可以有效地指导净化工艺，有针对性地提出相应措施以控制、减少三卤甲烷的产生，确保安全供水。Factors affecting formation of the disinfection by-products （DBPs）, trihalomethanes （THMs）, of chlorination were investigated through static experiments of raw water and filtered water The results showed that the factors including organic matter concentration, chlorine dosage, bromide concentration, reaction time of chlorination, temperature and pH value all accelerated THMs formation except ammonia nitrogen ; UV254 was more suitable to be the substitute parameter of THMs precursors ; when CI2/TOC 〈 1, little THMs was formed ; when C12/TOC = 1 to 4, chlorine decay was linearly related with THMs; when C12/TOC 〉 4, THMs increase was not distinct; chloroform decreased with the increase of bromide levels, while the other three kinds of bromo-halocarbon increased, especially bromoform. The findings would guide purification process effectively, and some suggestions to control and reduce THMs were made to ensure safety water supply.

关 键 词：地表水 原水 滤后水 消毒副产物 三卤甲烷 

分 类 号：TU991.2[建筑科学—市政工程]