城镇污水处理厂化学除磷研究

3334TTT35T112(1.SchoolofCivilEngineering&Mechanics,HUST,Wuhan430074,China;2.WuhanMunicipalEngineeringDesignResearchInstituteCo.,Ltd.,Wuhan430023,China;3.CITICGeneralInstituteofArchitecturalDesign&ResearchCo.,Ltd.,Wuhan430014,China)Abstract:Bydeducingandcomparingtheequilibriumfunctionsofcable-archstructureandbeam-stringstructure,thecharacteristicsofbeam-stringstructureanditsdifferencesfromcable-archstructureareemergingfromtheangleofformulas,andtheconsistencyoflinebeam-stringstructureandarchoneisdiscovered.Inaddition,combinedwiththedeductionofformulas,thechoiceprincipleofcableprestressofbeam-stringstructureisgiveninthispaper.Keywords:cable-archstructure;beam-stringstructure;prestressedstructure;calculationmethodResearchonChemicalPhosphorusRemovalinWastewaterTreatmentPlantsCHENGuang(ShanghaiChengtouWastewaterTreatmentCo.,Ltd.,Shanghai201203,China)Abstract:Bythelab-scaleexperimentresearchusingL9(34)orthogonalexperimentalmethod,andthefull-scaleexperimentresearchinsomewastewatertreatmentplantofShanghaiChengtouWastewaterTreatmentCompanyonchemicalphosphorusremovalofPAC,PFSandcompositecoagulant,therelationshipsbetweenthechemicalphosphorusremovalefficiencyandsomeinfluencefactors,suchaschemicalreactiontime,differentreagents,differentdosageanddifferentdosingpoints,whichcanguidetheoperationoptimizationandupgradereconstructionofchemicalphosphorusremovalinwastewatertreatmentplants.Theresearchshowsthatthebestreagentiscompositecoagulant,andthebestdosingpointisthemiddleofaerobictank,andfornormalwastewatertreatmentplants,theeffluentTPconcentrationcanbeeffectivelycontrolledunder1.0mg/Llevelwhenthedosageisabout40mg/L.Keywords:wastewatertreatmentplants;chemicalphosphorusremoval;experimentalresearchonphosphorusremovalADeodorizationDesignofWastewaterTreatmentPlantsYINGJian-han1,LIChun-hua2,LIRuo-hong3(1.NorthChinaMunicipalEngineeringDesign&ResearchInstituteCo.,Ltd.,Tianjin300074,China;2.TianjinAcademyofEnvironmentalScience,Tianjin300191,China;3.TianjinTianfayuanAgencyCenterforEnvironmentalProtectionAffairCo.,Ltd.,Tianjin300384,China)Abstract:Thedeodorizationprocessofplasma+soilfilterisappliedinawastewatertreatmentplantinSuzhou.Thedeodorization