2016onApril13,JiangsuYancheng,sponsoredbytheChinaInternationalTradePromotionCommitteeofconstructionindustrybranch,thehostcityofYanchengChinaEnvironmentalScienceandtechnologyandthewaterindustrymarket"magazineandfocusnetworkwww.cin.cneleventhwatertreatmentindustryhotspotTechnologyForumheldasscheduled.ChinaCouncilforthepromotionofinternationaltradeintheconstructionindustrybranchXieHongchangopeningspeech.Thisforum,anumberofbigcoffeeindustrydowonderfulspeech,whichsomespeakersofsomewonderfulspeechconsolidationshareforeveryonetoseeit!

　　ChineseAcademyofengineering,BeijingUniversityofTechnology,Schoolofenvironmentalscienceandengineering,ProfessorPengYongzhen

 

　　ProcesstechnologyandcaseanalysisofurbansewagetreatmentuptofirstgradeA

 

　　Atpresent,themaincontradictionthatexistsinAAOisduetothelackofcarbonsource,andlowC/Nisverycommoninourcountryatpresent.Thenitrogenandphosphorusremovalinmunicipalwastewatertreatmentplantisfacedwiththeproblemofcarbonsourceinsewage.Biologicaldenitrificationisthepremiseofcompletenitrification,theneedforlongsludgeage;biologicalphosphorusremovalisthepremisethattherearemoreresidualsludge,needshortsludgeage.Onlythroughtheoperationcontrol,thenitrogenandphosphorusremovalcouldnotreachthebest.

 

　　AdvantagesofAAO-BAFtechnology:

 

　　Nitrificationandphosphorusremovalwerecarriedoutintwodifferentsludgeagesystems,andnonitratenitrogenintherefluxsludgecouldmaketheanaerobicphosphorusreleasemorefully,andachievethepurposeofsimultaneousnitrogenandphosphorusremoval.Theprocessprovidesasuitableenvironmentforthedenitrificationandphosphorusremovalbacteria,andthemainformofphosphorusremovalwillbethedenitrificationandphosphorusremoval,whichcansavethecarbonsource,andismoreconducivetothetreatmentoflowC/Nratiowastewater.Alotoforganiccompoundswereremovedintheprocessofdenitrificationandphosphorusremoval,theretentiontimeofaerobicperiodwasonly1.8h,andtheresidencetimeof2.5hwasBAF,andthetotalaerobicaerationtimewasonly4.3h.AsorganicmatterandsuspendedsubstancesaremostlyremovedintheAAO,whichisconducivetothenitrificationinBAF,whiletheBAFcanbeextendedtoreversethewashingtime.Inthemixedsolutionoftwosettlingtanks,therearefewnitratenitrogen,notwosludgefloatingphenomenon.

　　MinistryofhousingandUrbanConstructionDepartmentofurbanconstructionCaoYanjin

 

　　Technologyandpolicyofblackodorwatertreatment

 

　　Managementofblackandsmellywater,controlofpollutionisthekeysourceofpollution.Remediationtechnologyselectionshouldfollow:applicability,comprehensive,economic,long-termandsafetyprinciples,comprehensivecontrolofpollutionsources,internalgovernance,ecologicalrestorationandothergovernancemeasures.

　　LiAimin,PresidentofYanchengenvironmentalprotectiontechnologyandEngineeringResearchInstitute,NanjingUniversity

 

　　Rivergovernanceandecologicalrestorationofurbanriverbasedonthelackofthebasicflow:acasestudyofHuaihe

 

　　Thegovernanceofheavilypollutedblackandsmellyriverbasedonthelackofbasicflowisadifficultproblemintheworld.WaterresourcesinthenorthofChinaandtheincreaseofthewatershortageandwaterpollutioninthenorthoftheriverisinshortsupplyandthesituationofwaterpollution.ThelackofbasicflowandtheheavypollutionarethetypicalcharacteristicsoftheblackandsmellyriversinthenortherncitiesofChina.

 

　　WaterpollutioncontrolintheHuaiheriverbasinisthemainproblemofthewaterpollutioncontrolintheriverbasin.Basedonthesewageandwastewaterresourceuseandwaterqualitymanagementbyobjectives"333"governancemodecanberealizedbasedontheenvironmentalcapacity,totalandecologicalpurificationcapacityoftheindustrystandardofindirectemissions,watershedemissionstandardandriverwaterqualitystandardscientificlink.

　　LiAimin,PresidentofYanchengenvironmentalprotectiontechnologyandEngineeringResearchInstitute,NanjingUniversity

 

　　Rivergovernanceandecologicalrestorationofurbanriverbasedonthelackofthebasicflow:acasestudyofHuaihe

 

　　Thegovernanceofheavilypollutedblackandsmellyriverbasedonthelackofbasicflowisadifficultproblemintheworld.WaterresourcesinthenorthofChinaandtheincreaseofthewatershortageandwaterpollutioninthenorthoftheriverisinshortsupplyandthesituationofwaterpollution.ThelackofbasicflowandtheheavypollutionarethetypicalcharacteristicsoftheblackandsmellyriversinthenortherncitiesofChina.

 

　　WaterpollutioncontrolintheHuaiheriverbasinisthemainproblemofthewaterpollutioncontrolintheriverbasin.Basedonthesewageandwastewaterresourceuseandwaterqualitymanagementbyobjectives"333"governancemodecanberealizedbasedontheenvironmentalcapacity,totalandecologicalpurificationcapacityoftheindustrystandardofindirectemissions,watershedemissionstandardandriverwaterqualitystandardscientificlink.

　　Ministryofhousingandurbanandruralconstructionofthespongecityexpertguidancecommittee,ChineseAcademyofurbanplanningandDesignInstituteofwaterandengineering,vicepresidentXieYingxia

 

　　Studyontheconstructionofthespongecityandthecomprehensivemanagementofrainwater

 

　　Spongecityconstructionshouldbefromtheoverallsituationofshouldconsidernotonlythe"landscapeHayashidaLake"thesponge",butalsoconsiderthelowimpactdevelopmentthesedistributed"smallspongespongeconstructioncityespeciallylowimpactdevelopmentforrunoffpollutioncontrol,runoffreduction,groundwaterrechargeandisofgreatsignificance,butitshouldnotbeexaggeratedtherole,especiallyintermsofwaterloggingpreventionrole.

 

　　Fromtheperspectivesofecologicalcivilization,"landscapeHayashidaLake"tounderstandthespongecityshouldnotbesuperficialandone-sidedthatspongecityisdresshats,whitewash,willlaysomewaterpermeablebrick,repairseveralreservoirs,builtafewpiecesofsunkenlawn.

 

　　ThepurposeofbuildingaspongeCity:fromthesingleobjectivetomultipletargetsfromsinglemeasurestocomprehensivemeasures;fromtheendtothewholeprocess.

 

　　Thinkingaboutthechoiceofsludgetreatmentanddisposaltechnology

 

　　Bottleneckproblemofsludgetreatment

 

　　Thewatercontentofsludgeisthekeyproblemtocontrolthesludgedisposalandutilization.

 

　　Thedryingprocessisthemainlinkoftheenergyconsumptionofsludgetreatmentanddisposalsystem.

 

　　Targetofsludgetreatmentanddisposal

 

　　Protectionoftheenvironment:thedecompositionofpollutants,toachievetheminimumquantityofsludgeandsafetymanagement;

 

　　Technicalreliability:thesystemissafe,efficientandreliable,anditcanrealizethecontinuousandstableproduction;

 

　　Technology:technologyinnovation,improvetheprocessingefficiencyandeffectiveness,reduceenergyconsumption,reducethecostoftreatment;

 

　　Resourcerecovery:transformationandrecyclingofresources,suchaspowergeneration,heating,fuel,fertilizer,buildingmaterials,etc..

 

　　principle

 

　　Safe,reliable,advanced,resourcerecovery

 

　　demand

 

　　Thewholesolutionofsludgetreatmentandutilization

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