半封闭条件下稳定型含氯消毒剂在饮用水中的稳定性研究  

Stability Investigation of a Stable Chlorine Disinfectant in Drinking Water under Half-open Condition

作　　者：陈启华[1,2] 陈为民[1,2] 肖贤明[1] 

机构地区：[1]中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州510640 [2]中国科学院研究生院,北京100049

出　　处：《净水技术》2008年第4期22-24,44,共4页Water Purification Technology

基　　金：广东省科技厅资助项目(项目编号:2006B36801001;2005B32401007)

摘　　要：研究了在半封闭条件下一种稳定型含氯消毒剂的稳定性及抑菌性能。结果表明:稳定型含氯消毒剂具有很好的稳定性,在纯净水中其有效氯的半衰期可长达250d,在自来水中为80d左右;加入稳定型含氯消毒剂的纯净水在长达290d的实验期内基本上不生长细菌,而自来水中当有效氯不到0.5mg/L,细菌含量开始明显增加。加入稳定型含氯消毒剂的纯净水会在一定程度上增加消毒副产物的含量,但不影响饮用水的安全性。稳定型含氯消毒剂可广泛应用于饮用水的消毒。The stability and bacteriostasis of a kind of stable chlorine disinfectant under half-open condition were investigated. The result indicated the stable chlorine disinfectant persists its concentration a longer time in water. The half-life of its effective chlorine content in purified water lasted for about 250 days, and in tap water only 80 days. Bacteria did not grow in the purified water containing the stable chlorine disinfectant for 290 days in the period of experiment. However, when the effective chlorine content in tap water was less than 0.5 mg/L, bacteria began to grow and the number of bacteria increased obviously. Although purified water containing the stable chlorine disinfectant increased the content of disinfectant by-products to a certain extent, it did not affect the safety of drinking water. Stable chlorine disinfectant could be widely used in drinking water disinfection.

关 键 词：稳定型含氯消毒剂 有效氯 稳定性 

分 类 号：X924.4[环境科学与工程—安全科学]