净水技术2023,42(2):177-184WaterPurificationTechnology■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■供排水企业运行及管理成果专栏姚子鸾.原水藻类暴发事件中藻类和致嗅物质的应急处理[J].净水技术,2023,42(2):177-184.YAOZL.Emergencytreatmentofalgaeandodor-causingsubstancesinrawwaterinalgaeoutbreakcase[J].WaterPurificationTechnology,2023,42(2):177-184.原水藻类暴发事件中藻类和致嗅物质的应急处理姚子鸾∗(衡阳市水务投资集团有限公司,湖南衡阳421000)摘要为有效应对原水藻类暴发事件,开展藻类应急处置工作,通过对湘江原水及出厂水中藻类、土臭素、2-甲基异莰醇(2-MIB)等指标的持续监测,分析了制水过程中藻类和致嗅物质的去除情况,研究了生产工艺的优化方案并分析了应用效果。研究显示,臭氧-活性炭工艺对藻类和致嗅物质的去除效果显著;常规工艺通过针对性的药剂组合投加可明显降低藻类和致嗅物质含量;单过硫酸氢钾由于活性氧的存在,在实践应用中取得了很好的效果。经过有效应急处置后,出厂水未见明显的生物毒性。通过对不同工艺条件下藻类应急处理注意事项的总结,以期为不同工艺水厂的藻类应急处置提供一定借鉴。关键词藻类暴发应急除藻应急除嗅生物安全性土臭素2-甲基异莰醇中图分类号:TU991文献标识码:A文章编号:1009-0177(2023)02-0177-08DOI:10.15890/j.cnki.jsjs.2023.02.023EmergencyTreatmentofAlgaeandOdor-CausingSubstancesinRawWaterinAlgaeOut-breakCaseYAOZiluan∗(HengyangWaterInvestmentGroupCo.,Ltd.,Hengyang421000,China)AbstractInordertoeffectivelyrespondtothealgaeoutbreakintherawwaterandcarryingoutemergencytreatmentofalgae,removalofalgaeandodor-causingsubstancesintheprocessofwatertreatmentplant(WTP),removalofalgaeandodour-causingsubstancesduringwaterproductionwereanalyzedwithcontinuousmonitoringofphysicalandchemicalindices,algae,geosmin,2-methylisoborneol(2-MIB),etc.inrawwaterandfinishedwater.Andtheoptimizationschemeofproductionprocesswasstudiedandtheapplicationeffectwasanalyzed.Resultshowedthatozone-activatedcarbonprocesshadasignificanteffectontheremovalofalgaeandodor-causingsubstances.Conventionaltreatmentprocesscouldsignificantlyreducethecontentofalgaeandodor-causingsubstancesbyaddingtargetedc...
