污水的生态处理技术.ppt

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1、污水的生态处理技术EcologicaltechnologyinwastewatertreatmentTraditionalwastewatertreatmenttechnology(Largequantitiesofenergyandchemicalagentsareneeded)Ecologicalwastewatertreatmenttechnology(Naturalpurificationprocess)Eco-pondssysteminwastewatertreatmentArtificialwetlandsystemEcolo

2、gicaltreatmentofurbaninlandriverEcologicaltechnologyinwastewatertreatmentEco-pondssysteminwastewatertreatmentEco-pondssysteminwastewatertreatment1Characteristicsofeco-pondssystemLowcostsResourcerecoveryConvenientmaintenanceDecoratingenvironmentLessexcesssludgeproductStron

3、gadaptabilityforshockloading2Purificationmechanismofeco-pondssystemSunlightO2WastewaterSettlingmatterO2AlgaeandotheraquaticplantH2O,CO2,NH3,PO43-BacteriaandfungalDuckandgooseFishPelagicorganismShrimpSpiralandshellAerobiclayerFacultativelayerAnaerobiclayerOrganicsubstances

4、CarboxylicacidEthanolAldehydeCH4+CO2+NH3+H2S+N2+H2Eco-pondssysteminwastewatertreatment3Constitutionofeco-pondssystemPretreatmentsystemAnaerobicpondFacultativepondAerobicpondAerationpondAquaticplantpondFishingpondStoragepondEco-pondssysteminwastewatertreatment4Typicalproce

5、ssofeco-pondssystemWastewaterPretreatmentGridGritchamberAnaerobicpondFacultativepondAerationpondAquaticplantpondFishingpondFeedingduckpondAquaticcroppondReedfieldFarmfieldirrigationRefillundergroundwaterEco-pondssysteminwastewatertreatmentArtificialwetlandsystemArtificial

6、wetlandsystem1PlantsinwetlandCannaceac(美人蕉)Sedgefamily(纸莎草)Wateronion(水葱)(再力花)Reedgrass(芦苇)绿叶荻Bamboo(富贵竹)花叶荻Artificialwetlandsystem2ConstitutionofartificialwetlandInfluentpipeEffluentpipeImpermeablelayerPackinglayerPlantsPercolationfiltrationlayerPercolationfiltrationlaye

7、rArtificialwetlandsystem3TypesofartificialwetlandSurfaceflowwetlandUnderflowwetlandArtificialwetlandsystem4PurificationmechanismsofartificialwetlandRemovalofSSfiltrationdepositionadsorptionArtificialwetlandsystemRemovaloforganicsSunlightPhotosynthesisO2+BiofilmOrganicsH2O

8、+CO2ArtificialwetlandsystemRemovalofnitrogenAirN2+N2ONH3OrganicNNH4+NO3-NH4+NO3-NO2-WaterSettlin