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ID:14909214
大小:859.72 KB
页数:104页
时间:2018-07-30
《蚯蚓生态滤池污泥减量化与稳定化效果的研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、同济大学环境科学与工程学院硕士学位论文蚯蚓生态滤池污泥减量化与稳定化效果的研究姓名:姚阔为申请学位级别:硕士专业:市政工程指导教师:杨健20070301摘要度高。适合我国中小城镇现有的经济和社会条件,符合可持续发展需要,技术经济竞争优势、社会及环境效益显著,具有良好的实际应用前景。关键词:污泥稳定化污泥减量化污泥脱水污泥养分组成UAbstractABSTRACTThisresearchwascarriedoutonthegroundofmanyforeignanddomesticliteratures:ontheb
2、asisoffiverunningconditions,thesludgereductionandstabilizationoftheEarth・・wormEco・・filterwerestudiedandsystematicanalysiswasmadeonthedominantinfluentialfactorswhichcouldplayimportantrolesinthesludgetreatment.111eresearchfindingscouldsupplydesignparametersandex
3、perienceofrunningandmanagementfortheprojectdesign,treatmentandrunningoftheEarth—WOrmEco・filtertechnology.Inaddition,thepropertyofthesludgedewateringwasstudiedbystudyingthespecificresistanceandCSTofthesludgebeforeandafterthetreatmentofEarth-wormEeo-filter.Inthe
4、end,thepropertychangeofthesludgebeforeandafterthetreatmentofEarth・・wormEeo-・filterWasanalyzedinlightoftheorganiccomponentofthesludge.ThetechnologicalandeconomiccharacteristicsofthesludgetreatmentbyEarth-wormEeo-filterwereconcludedaRercomparingwithregularsludge
5、treatmentmethods.nemainresearchfindingsoftheresearchcouldbeconcludedasfollows:lEarth-wormEco-filterplayedaroleinthetreatmentofsludgereductiontoacertaindegree.Intherunningconditions,thedailyinfluentSSconcentrationsoftheEarth-wormEeo-filterwererangingfrom20-40mg
6、/Landthereductionratewasrangingfrom40%to50%.Moreover,thepropertyofsludgesettlingandeffluentqualitycouldbebetteredwithoutextraexpenditureforoxygensupplybesidesthereductiontreatmentofthesludgeafterEarth-wormEco-filter.2Earth—WOrmEco—filtercouldstabilizethesludge
7、tosomedegree.Intherunningconditions,theVSS/SSofthesludgebeforethetreatmentofEarth-wormEco.filterwas60%~70%andafterthatwas40%~50%andthereductionratewas50%—65%.3111etreatmentefficiencyofEarth—wormEco-filterWasrelatedwiththepropertyoffiltermaterial,filtertemperat
8、ure,organicloadingrateandhydraulicloadingofthefilteretc.Generally,thetreatmentefficiencyofceramicaggregateWasⅡlsuperiortothatofquartzsand;however,inthesituationofhighrateofrainfall
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