金泽水库原水预加氯在迁移中的形态变化  

Transformation of Chlorine in Pre-Chlorination of Jinze Reservoir Raw Water

作　　者：钱灏 夏樱 QIAN Hao;XIA Ying(Shanghai National Engineering Research Center of Urban Water Resources Co.,Ltd.,Shanghai 200082,China;Shanghai Chengtou Water(Group)Co.,Ltd.,Water Production Branch,Shanghai 200086,China)

机构地区：[1]上海城市水资源开发利用国家工程中心有限公司,上海200082 [2]上海城投水务〈集团〉有限公司制水分公司,上海200086

出　　处：《净水技术》2019年第S02期11-14,共4页Water Purification Technology

摘　　要：金泽水库水源地原水水质变化幅度大,为达到上海市高品质饮用水的目标,需通过预处理来改善原水水质。文中主要研究预氯化后原水在迁移输送过程中氯的形态变化。结果表明:出水余氯为0.3 mg/L时,有机氯胺生成量最小,能够使有效氯的比例达到最高值;原水中的氨氮含量越高,迁移过程中余氯衰减越慢;随着迁移距离的增加,余氯中有机氯胺的比例不断上升。The quality of raw water in Jinze Reservoir varies greatly.To achieve the goal of high-quality drinking water in Shanghai,pretreatment is needed to improve the quality of raw water.The paper mainly studied the changes of chlorine in the process of migration after pre-chlorination of raw water.Results showed that the fbnnation of organic chloramine in raw water could be controlled when residual chlorine content was 0.3 mg/L,which ensured the proportion of available chlorine reach the highest.The higher ammonia nitrogen content in raw water was,the slower the decay of residual chlorine during migration was.As migration distance increased,the proportion of organic chloramines in residual chlorine continued to rise.

关 键 词：原水 预氯化 氨氮 一氯胺 有机氯胺 

分 类 号：TU991.11[建筑科学—市政工程]