氯及氯胺灭活大肠杆菌的消毒动力学模型  

Modeling of Inactivation Kinetics of E.coli with Free Chlorine and Monochloramine

作　　者：王云[1] 鲁巍[1] 张晓健[1] 

机构地区：[1]清华大学环境科学与工程系

出　　处：《环境科学》2005年第5期100-104,共5页Environmental Science

基　　金：国家自然科学基金资助项目(50238020)

摘　　要：分别研究了游离氯和一氯胺在pH7.0、20℃时对大肠杆菌的灭活作用,利用6种不同消毒动力学模型:Chick’slaw,Chick-Watson,Hom,Rational,Hom-Powerlaw,Selleckmodel对试验数据进行了拟合,通过对拟合结果的比较分析得出:在消毒剂符合一级衰减动力学情况下,游离氯和一氯胺灭活大肠杆菌的最佳拟合模型分别是3参数的Rational模型和2参数的Selleck模型.The inactivation of Escherichia coli with free chlorine and monochloramine was studied using bench-scale experiments in 0.03mol/L phosphate buffered saline with pH 7.0 and at 20℃ . Inactivation data were fitted to Chick＇s law, Chick-Watson, Hom, Rational, Hom-Power law, Selleck model. A three-parameter Rational model incorporating a first-order disappearance term for free chlorine residual was found to best describe the observed inactivation of E. coli, and for monochloramine the two-parameter Selleck model was the best fit model.

关 键 词：消毒 游离氯 氯胺 大肠杆菌 动力学模型 

分 类 号：TU991.25[建筑科学—市政工程] X52[环境科学与工程—环境工程]