含氯消毒剂处理城镇污水投加量的快速测定

含氯消毒剂处理城镇污水投加量的快速测定含氯消毒剂处理城镇污水投加量的快速测定嵇志远(杭州市水务控股集团有限公司水质监测中心，浙江杭州310014)【摘要】通过采集一定量污水处理厂未经消毒处理的水样，在实验室中对样品进行氯水杀菌消毒小试实验，研究含氯消毒剂投加量和接触时间对污水消毒效果的影响，结果表明：在每吨水中投加3．88g效价(有效氯)的含氯消毒剂并接触20min后，采用可快速测定的酶底物法检测消毒后水样的粪大肠茵群指标能够达到国家标准的排放限值要求。【关键词】含氯消毒剂；剂量；接触时间；酶底物法；粪大肠菌群；排放限值中图分类号：X703文献标识码：A文章编号：1005—8206(2015)03—0048—03FastMeasurementforDosageofDisinfectantContainingChlorineinMunicipalSewageTreatmentjiZhiyuan(WaterQualityMonitonngCenterofHangzhouWaterHoldingGroupCo．Ltd．。HangzhouZhejiang310014)【Abstract】Acertainamountofsewagewithoutdisinfectionwassampledfromsewagetreatmentplanttocarryonachlorinedisinfectionexperimentinthelaboratory．Theefectsofdosageandcontacttimeofdisinfectantcontaimngchlorineonsewagedisinfectionwereresearched．Theresultsshowedthatthefecalcoliformofthewatersampleafterdisinfectioncouldmeettheemissionlimitsofnationalstandards，whichwasmeasuredbyenzymesubstratemethod，whenthedosageofavailablechlorinewas3．88gpertonofwater，andthecontacttimewas20minutes．【Keywords】disinfectantcontainingchlo