潜流湿地处理农村生活污水技术及实验示范

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1、同济大学环境科学与工程学院博士学位论文潜流湿地处理农村生活污水技术及实验示范姓名：王晟申请学位级别：博士专业：市政工程指导教师：徐祖信20050401ABSTRACTWiththecontinuouspromotionofurbanwaterpollutioncontrol，ruralwaterenvironmentalissuesvisiblyemergeinrecentyears．Becauseofthehighpopulationwithnoserviceofsewagesystem，domesticwastesourc

2、ebecomesanimportantaspectwhichinfluencingregionalwaterenvironmentalquality．Fordispersedinhabitation，laggingtechnology，povertyeconomicconditionandlackofenvironmentalprotectionconsciousness，traditionalwastewatertreatmenttechnologiesaredifficulttobeemployedinruralplace

3、．Asaresult，itbecomesmoreandmoreurgenttoresearchanddevelopnovelwastewatertreatmenttechnologyandapplicablemodelwhichsuitableforruralplace．Withtheadvantagesoflowoperatingcost，simplemanagementandlittleinfluencetoaroundenvironment,constructedwetland，especiallysubsurfacew

4、etlandisthoughtasatechnologywithextensiveforeground．Althoughpredecessorprofessionalshaveobtainedmanypositiveachievements，subsurfacewetlandtechnologyhasbeenstilliIlitsprimarystageinChina．Engineeringcaseandproblem—solvingprogramareespeciallyshortage，whichlargelystuntr

5、ationalapplicationandeffectivepromotionofthistechnology．Inviewpointofthemethodofapplicationtechnologydevelopment’ruraldomesticwastewatertreatmentbysubsurfacewetland,whichwasdividedintothreep￡urt—ydraulicdesign，processdesignandvegetabledesign，Wassystematicallyresearc

6、hedanddiscussedinthefollowingprocedure：theoreticalanalysis--softwareprogramming—labscalestudy—fullscalepilotplantstudy---demonstration．Thewholepaperconsistedofsixchapters．Chapteronein仃oductedsubsurfacewetlandwastewatertreatmmenttechnology，includingitsorigin，type，dev

7、elopment，characteristicsandresearchprogress．Finally，studynecessityandmethodofthispaperWasproposed．Chaptertwointroducedthebasictheoryofwater．floworgnizationandpollutantpurificationinsubsurfacewetland．ThehydraulicdesignofsubsurfacewetlandWasdiscussedinChapterthree．inw

8、ichthethreedifferentkindofwetlandbyhorizontal．flow,up．flowanddown．flowwasfirstlyoverallformulated，basedonwhichasimulationsoftwareofsubsurf