紫外_臭氧复合压载水处理系统的建立与运行
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2020-02-26 15:06:40
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第5O卷第2期2018年2月哈尔滨工业大学学报JOURNALOFHARBININSTITUTEOFTECHN0LOGYVol_5ONo.2Feb.2018DOI:10.11918/j.issn.0367—6234.201608031紫外/臭氧复合压载水处理系统的建立与运行徐仲,陈国桢,苏婷,张思源,尤宏'(1.城市水资源与水环境国家重点实验室(哈尔滨工业大学),哈尔滨150090;2.哈尔滨工业大学(威海)海洋科学与技术学院,山东威海264209)摘要:为探究可以实现压载水达标排放的处理手段,建立了可以控制实现0、uV单独处理的0/UV复合压载水处理中试系统.以大肠杆菌和杜氏盐藻为目标微生物,MPN法计数剩余活菌数,CFDA—AM荧光染色法计数剩余活藻数,对该中试系统灭活微生物性能进行研究;N,N一二乙基对苯二胺(DPD)分光光度法测定该系统产生的总剩余氧化物(totalresidualoxidants,TRO)的衰减.结果表明,O和uV具有协同作用,二者复合要优于单独处理的灭活效果.辐照度67IxW/cm、O投加量1.62g/h、处理1.0S、出水2h后即检测不到大肠杆菌和杜氏盐藻的存在,能够满足国际海事组织关于微生物灭活标准.TRO浓度会随着时间的延长而衰减,且实验并未检测到菌和藻的复活,说明该系统具有理想的持续灭活性能.O/UV复合压载水处理系统弥补了单一处理手段效率低的缺点,二者复合有利于降低能耗,可望成为新一代处理手段.关键词:压载水;臭氧;紫外;大肠杆菌;杜氏盐藻中图分类号:P76文献标志码:A文章编号:0367-6234(2018)02—0100-04Establishmentandperformance0fthe0/UVpilot.scaleballastwatertreatmentXUZhong,CHENGuozhen,SUTing,ZHANGSiyuan,YOUHong,。(1.StateKeyLaboratoryofUrbanWaterResourceandEnvironment(HarbinInstituteofTechnology),Harbin150090,China;2.SchoolofMarineScienceandTechnology,HarbinInstituteofTechnology,Weihai264209,Shandong,China)Abstract:Toexplorethetreatmentmethodthatenablesthequalityofballastwatertomeetthedischargestandard,theO/UVcombinedballastwatertreatmentsystemwasestablished,inwhichO,andUVcanbecontrolledindependently.EscherichiacoliandDunaliellasalinaaretargetmicroorganisms.Tostudythesystemperformanceininactivatingmicroorganisms.MPNandCFDA.AMfluorescencestainingwereusedtocountresidualviablebacteriaandresidualviablealgaerespectively.N,N—Diethyl—P—phenylenediamine(DPD)spectrophotometrywasusedtomeasuretheattenuationoftotalresidualoxide(TRO)generatedinthesystem.Theresultsshowthat0andUVhaveasynergisticeffect。andthecombinationofthetwohasbetterperformanceofinactivationthanthatoftheindividualtreatment.Undertheconditionof67/xW/cmUVirradiance,1.62g/hoftheO3dosageforIsexposure,theEscherichiacoliandDunaliellasalinacancannotbedetectedafter2h.whichmeanstheeffluentcanmeetIM0microbialinactivationstandards.TROconcentrationdecayedwithtime.andtheexperimentdidnotdetecttheresurrectionofbacteriaandalgae.whichindicateag
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