含氯消毒剂对医疗机构污水消毒效果监测分析_朱惠芳

作者简介:朱惠芳(1976－)，女，本科，副主任技师，主要从事卫生微生物检验工作。·调查·监测·含氯消毒剂对医疗机构污水消毒效果监测分析朱惠芳，李春毅无锡市梁溪区疾病预防控制中心，江苏无锡214011摘要:目的通过对不同含氯消毒剂、消毒剂不同氯含量浓度对不同级别医疗机构污水粪大肠菌群、肠道致病菌检测调查分析，以改进医疗机构污水消毒质量效果。方法回顾性分析2017年无锡市梁溪区26家不同级别医疗机构共286份污水粪大肠菌群、肠道致病菌检出情况。结果使用不同含氯消毒剂消毒污水效果无明显差异;当污水中总余氯浓度在4．0mg/L～5．0mg/L时消毒效果最佳;不同级别医疗机构经含氯消毒剂处理后消毒效果排序:二级医疗机构＞一级医疗机构＞三级医疗机构。结论无锡市不同级别医疗机构污水经含氯消毒剂处理后，微生物指标合格率为76．9%，不同级别医疗机构污水处理存在差异，提示三级医疗机构应改进污水处理工艺，加大污水处理投入;一级医疗机构应加强含氯消毒剂的管理、加强操作人员培训，确保无锡市医疗机构污水排放的安全性。关键词:含氯消毒剂;医疗机构污水;消毒效果监测中图分类号:Ｒ187文献标识码:B文章编号:1004－8685(2018)17－2168－03MonitoringandanalysisofthedisinfectioneffectofchlorinecontainingdisinfectantforsewageinmedicalinstitutionsZHUHui－fang，LIChun－yiLiangxiDistrictCenterforDiseaseControlandPrevention，Wuxi，Jiangsu214011，ChinaAbstract:ObjectiveTodetectsewagefecalcoliformsandintestinalpathogenicbacteriaindifferentlevelsofmedicalinstitu-tionsbydifferentchlorine－containingdisinfectantsanddisinfectantswithdifferentchlorineconcentrationssoastoimprovethedisinfectionqualityofsewageinmedicalinstitutions．Methods286fecalcoliformandintestinalpathogenicbacteriain26differentmedicalinstitutionsinLiangxiDistrictin2017wereretrospectivelyanalyzed．ＲesultsTherewasnoobviousdifferenceintheeffectofusingdifferentchlorinecontainingdisinfectants;thedisinfectioneffectwasthebestwhentheconcentrationoftotalchlorineinthesewagewaswithin4．0mg/L－5．0mg/L;theorderofdisinfectioneffectofdifferentlevelsofmedicalinstitu-tionstreatedwithchlorinateddisinfectantswasleveltwomedicalinstitutions＞levelonemedicalinstitutions＞levelthreemedi-calinstitutions．ConclusionThequalifiedrateofmicroorganismwas76．9%inthesewagefromdifferentmedicalinstitutionsofWuxiaftertreatmentwithchlorinecontainingdisinfectant，thereweredifferencesinsewagedisinfectiontreatmentagenciesofdifferentlevels．Itwassuggestedthattheprocessshouldbeimprovedandinvestmentbeincreasedinsewagetreatmentinthethreelevelmedicalinstitutions．Themanagementofchlorinateddisinfectantsshouldbestrengthenedandoperatorsbestrengthenedtrain-inginfirst－degreemedicalinstitutions，soast