改进自来水厂检验余氯的方法

Improved Water Plant Chlorine Test Methods

余氯,是指生产饮用水经加氯消毒,接触一段时间后有适量的氯留存于水中,用来保证持续的杀菌能力,也可用来防备供水管网受到外来污染。余氯有三种形式:1总余氯:包括游离性余氯和化合性余氯。2游离性余氯:包括HOCl及OCl-等。3化合性余氯:包括NH_2Cl、NHCl_2、NCl_3及其他氯胺类化合物。

Chlorine, refers to the production of drinking water through chlorination, a period of time after contact with the right amount of chlorine in water retention, to ensure continued disinfection, also be used to prepare water supply pipe network subject to external contamination.Chlorine three forms ： 1.Total chlorine ： Includes free residual chlorine and compounds of chlorine.2.Free residual chlorine ： HOCl and include OCt like.3.Residual chlorine compounds include ： NH2C1, NHCl2, NCl3 chloramines and other compounds.