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201922。COD、-2.6%、-74.8%、13.2%COD20.1%64.1%34.9%59.5%74.8%COD30.2%、16.2%DO、。X703.1A1009-7716201902-0109-042018-11-111978—、。310002DOI:10.16799/j.cnki.csdqyfh.2019.02.028、[19][2-3]。、[4][5]。、、、、[6-7]、。、、、。、、12、、。。300mm、400mm、420mm、、、。20~30mm80mm50mm、300mm6mm30mm40mm1~2mm250mm30mm40mm50~80mm。1。109201922、H2KPO4NH4ClCOD、TNTP2。25L12.5L/d12hHRT2.0d0.3~0.5m3/m2·d。、10~40℃。、、COD、21d。22d。30min、3。COD1~3。SD1#SD2#SD3#SD4#SD5#SD6#SD7#SD8#SD9#SD10#SD11#SD12#YYYYYYYYNNYYYYNNYYNNYYYYYYYYYYYYYYNNYYYYNNNNYYYYYYYYYYYYYYYY。、pH5.81~7.81DO0.0~1.0TS15~68TN15~385.0~25.5TP2.0~4.5BOD535~82COD98~2501CODHACHDR/24001/2d2UV-2802PC2/d32/d。1102019221COD48%~72%COD。3#/4#COD5#/6#COD1#/2#COD。230。9#/10#11#/12#5#/6#3#/4#1#/2#。5#/6#。35NTU。5#/6#1#/2#7#/8#5#/6#9#/10#1#/2#。5#/6#。COD4。COD64.1%20.1%16.2%CODCOD-2.6%COD。COD。COD。80.8%19.2%。、[8]59.5%、34.9%5.7%、50.9%、30.2%18.9%。COD、-2.6%、-74.8%、13.2%COD74.8%COD30.2%16.2%20.1%COD16.5%34.9%3.9%COD50.9%19.2%COD/%COD/%/NTU/%//%-6.3-10.31.68-80.80.89-5.79.916.22.7774.88.8630.23.76.00.226.05.5218.912.220.10.6116.55.51-34.92.43.90.40-19.214.9150.939.164.10.102.79.40-59.561.0100.01.62100.013.49100.0111201922COD64.1%59.5%。。、[1]。[4]。COD[8]5~15cm。[10][11]。DO。。[1].———[D].2014.[2].[J].201437S1:1-5.[3],.[J].20042410:9-12.[4].[J].2008293:627-631.[5].[J].20025:474-476.[6].[D].2017.[7]HouJXiaLMaTetal.Achievingshort-cutnitrificationanddenitrificationinmodifiedintermittentlyaeratedconstructedwetland[J].BioresourceTechnology2017232510-17.[8].[D].2015.[9].--[D].2016.[10],,,.[J].2012321:43-50.[11].[J].20103611:6-8.112ConstructionPracticeofYangzhouJinwanRiverBridgeProject!!!!!!!!!!!ZhaoSiyuan(102)Abstract:JinwanRiverBridgeisariver-crossingbridgeinanewconstructionprojectinJinwanRoadofYanghzouCity,andisalsoacontrollingnodeworkofthisproject.Afterthecomparisonandselectionofschemes,thepre-stressedconcretecontinuousgirderisusedforthemainbridge.Thispaperintroducestheoverallscheme,bridgestructuredesign,calculationanalysis,andthekeytechnologiesoftemporaryconsolidationdesign,cantileverpouringbyformtravelerandconstructionmonitoringintheconstructionofpre-stressedconcretecontinuousgirderofJinwanRiverBridge,whichcanbereferredforthesimilarbridges.Keywords:pre-stressedconcretecontinuousgirder,overallscheme,temporaryconsolidation,cantileverpouring,constructionmonitoringFLOODCONTROL&DRAINAGEDiscussionsonConstructionNecessityofDeepDrainageStoragePipelineSystemProjectinSuzhouCree!!!k!!!!!!!!!!!!!!!!!!!!!!!!HanJingchao,XuWenzheng,CaoJing(105)Abstract:Toeffectivelymanagetheproblemsofdrainagesystemsupgrading,waterloggingpreventionandnon-pointpollutioncontrol,theSuzhouCreekDeepDrainageStoragePipelineSystemProject(SuzhouCreekDeepTunnelProjectforshort)isplannedtoconstructinShanghai.Thescaleofthisprojectislargerwiththewideinfluence,andalsothereisnocompletioncaseofdeepdrainagetunnelprojectinChina.Therefore,thispapersystematicallydiscussestheconstructionnecessityofSuzhouCreekDeepTunnelProjectfromrespondingtothedemandofrelativenationalpoliciesandregulations,meetingtheyearningofthepeopleforthebetterlife,meetingthedemandofwaterenvironmentaltreatmentininternationalmetropolis,meetingthedemandoffinedesignandmanagementofsmartcity,andsettingupthedemonstrationprojectofdeeptunneltechnologytosolvethefloodcontrolandwaterloggingdrainageinthecentralcityarea.ThestudyshowsthattheconstructionbasisofSuzhouCreekDeepTunnelProjectissufficient,thebenefitisremarkable,thesignificanceisgreatandtheinfluenceisfarreaching,whichprovidethedecisionbasisforthepropulsionandconstructionofthisproject.Keywords:SuzhouCreekDeepTunnelProject,upgradingofdrainagesystem,waterloggingprevention,non-pointsourcepollutioncontrolStudyonStructureOptimizationofVertical-flowArtificialWetland!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!LinYuanyuan,BaoJiongjiong,WuWei,YuFudong(109)Abstract:Aimingatthecurrentsituationthattheinternalstructuredesignofartificialwetlandlacksthebasisintheengineeringpractice,thispaperstudiesthepurificationefficiencycontributionrateofeverystructurelayerofartificialwetland.Theresultshowsthatthesoillayerhasnotonlythepurificationrole,butalsothecontinuousdissolutionleakageeffect.ItsnetcontributionratesofCODremovalrate,turbidityandchromaticityare-2.6%,-74.8%and13.2%.TheplantsandstuffingbiologyarethemainforcesofCODpurificationinthewetlandwiththeproportionsby34.9%and59.5%separately.Theaquiferhasthegoodfilteringperformanceandauxiliarypurifyingfunction,andbearsthe74.8%turbidityremovalamount.ThecontributionratesofchromaticityandCODremovalare30.2%and16.2%separately.Thestudyproposesthatthenon-soillayeroftricklefilterartificialwetlandcanbedesignedintheengineeringpracticesoastoreducetheblockingriskofwetland.Combinedwiththecyclewaterdistribution,theDOpenetrationdepthisimprovedsoastoupgradethewaterqualityofeffluent.Thestudyproposesthatthenon-wovenfiberisusedtoreplacethesoillayer,andtosetupthesingle-layerormulti-layerwater-holdingfilterlayerbetweenthedrainagelayerandstuffinglayerforcontrollingthefilterspeed,andcontrollingthewaterdistributionformandresponsetimeinthereactor.Keywords:artificialwetland,structure,de
本文标题:垂直流人工湿地的结构优化研究林媛媛
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