垂直流人工湿地工艺设计

:2008-03-10:(2007GZC084),([2007]193):(1985-),,,.:1005-0523(2008)03-0040-05李忠卫,王全金,李　丽(,330013):简单介绍了人工湿地的定义、类型及其运行的影响因素.阐述了垂直流人工湿地系统的主要设计内容,包括湿地床体设计、植物群落的构建、基质的选择和铺设、自动增氧系统的建设等方面,并给出了相关的设计参数.　　:人工湿地;垂直流;工艺设计:X703.1　　　　　　:A　　、,、.、、、[1].、[2].MiklasScholz、、[3].:①(SFW),②(SSFW),③(VFW).,,.,.,,.,.,..1　、、、、、、,、、.1.1　,[4].As=[Q(lnC0-lnCe)]/(KTDn)(1):Ce—BOD5(mg/L);C0—BOD5(mg/L);KT—(d-1);Q—(m3/d);D—(m);n—;AS—(m2)KTKT=K20(1.1)T-20.,K20n,K20=K0(37.3n4.172),K0=1.893d-1,25320086　　　　　　　JournalofEastChinaJiaotongUniversityVol.25　No.3Jun.,2008K0=0.198d-1[4].KitkuthAS=5.2Q(lnC0-lnCe)[5].Cooper1-2m2/PE()5m2/PE[6].DiederikP.L.Rousseau4-2000PE,3.8m2/PE[7].,.R0(2),P0(3).　　　　　R0=1.5Q(C0-Ce)(2)　　　　　P0=AsTo/1000(3)To5-45gO2/m2·d,20gO2/m2·d.,,2[8].,[9].,150～500m3/(ha·d),187～374m3/(hm2·d).,2000mm/d,,1000mm/d.80～620mm/d[10].,,.E.J.Dunne525[2]..20m～50m.,,,.(L/W),3∶1,1∶1;,L/W1∶1.1%～8%,,2%,1%.1.2　:①;②(、、,);③;④,;⑤.,:(Phragmites)、(Canna)、(Typha)、(Calamus)、(Juncus)、(Scripus)(Cares),.、、、;、、、[11].,,0.6-0.7m,.,,.[12]27,,、、、、、、、18,.,.,、,,.、[13].,、,,.,,;,,,.1～3/m2,[5].1.3　:(1),(、、、),[14,15].2～2.5kg/100kg,.(2),,,,;,;0～30mm,4～16mm.(3),.,P,.,、、[16].(4),,50%-60%[17].,[18]、,413,:,、.[19]、、、,,,;;.、,(8.89gP/kg),(8.81gP/kg),,,22[20].、.,0.6～0.8m,,0.7-0.8m.,0.6-0.7m.0.76m;0.6-0.7m;、0.45～0.6m[21];、0.2～0.6m[22].,.2～2.5kg/100kg,.,150～250mm,,,.[23]、、,,,.,,,10%～15%.1.4　,,、、、.1)2-3.,.,,,;,.2),.,,.,0.5m,.、、,、.,,.,,[24].3),,.,0.5～1.0mm,,,.,.:①;②,pH;③,,;④();⑤,.;,.,.,.,、、,15cm,5cm[25].4),.,,,,.MichalGreen[26],,.3,0.5mg/L[27].42　　　　　　　20082　,.,,,,.,,,,,,、,、、、、,.:[1]　,.[M].:,2006:7-52.[2]E.J.Dunne.Anintegratedconstructedwetlandtotreatcontami-nantsandnutrientsfromdairyfarmyarddirtywater[J].Ecologi-calEngineering,2005,(24):221-234.[3]MiklasScholz.Performancepredictionofmatureexperimentalconstructedwetlandswhichtreaturbanwaterreceivinghighloadsofleadandcopper[J].WaterReaearch,2003,(37):1270-1277.[4].[M].:,2007:174-188.[5]　,　,.[J].,2001,14(1):59-62.[6]Cooper,P.,Smith,M.,Maynard,H.Thedesignandperfor-manceofanitrifyingvertical-flowreedtreatmentsystem[J].WaterSci.Tech.,1997,(35):215-221.[7]DiederikP.L.Rousseau,PeterA.Vanrolleghem,NielsDePauw.ConstructedwetlandinFlanders:aperformanceanalysis[J].EcologicalEngineering,2004,(23):151-163.[8],.———[J].,1996,9(1、2):1-8.[9],,.[J].,2005,24(6):24-27.[10],.[J].(),2003,36(1):12-16.[11],.———[J].,2002,22(2):76-79.[12],,.[J].,2006,7(4):90-93.[13],,.[J].,2006,15(2):229-233.[14],　.[J].,2004,21(4):1-5.[15],　.[J].,2006,23(5):1-3.[16]DrizoA,etal.Physico-chemicalscreeningofphosphate-re-movingsubstratesforuseinconstructedwetlandsystems[J].WaterRes,1999,33(7):3595-3602.[17]USEPA.Subsurfaceflowconstructedwetlandsforwastewatertreatment[M].ATechnologyAssessment,1993.[18],,　,.3[J].,2006,7(1):110-113.[19],.[J].(),2006,27(5):102-106.[20]DefuXu,JianmingXu,etal.Studiesonthephosphorussorp-tioncapacityofsubstratesusedinconstructedwetlandsystems[J].Chemosphere.2006,(63):344-352.[21].[J].,1991,4(5):8-12.[22],.、-Ⅱ.[J].,1998,10(1):62-66.[23],,.[J].,2006,18(2):234-138.[24]CarlDupoldt,RobertEdwards,etal.AHandbookofConstruct-edWetlands[M].WashingtonDC:TheU.S.GovernmentPrint-ingOffice,1990:17-23.[25]S.,G.,C..[J]..2003,(6):40-42.[26]MichalGreen,EranFriedler,IrisSafrai.EnhancingNitrifica-tioninVerticalFlowConstructedWetlandUtilizingaPassiveAirPump[J].Wat.Res.1998,32(12):3513-3520.[27],,.[J].,2006,26(3):404-408.433,:TechnologicalDesignofVerticalFlowConstructedWetlandLIZhong-wei,WANGQuan-jin,LILi(SchoolofCivilEngineering,EastChinaJiaotongUniversity,Nanchang330013,China)Abstract:Thepaperbrieflyintroducesthedefinitionofconstructedwetland,typesandtheimpactofoperationalfactors.Italsorevealsthedesignofverticalflowconstructedwetlandsystem,includingthedesignofwetlandbed,selectingandpavingthesubstrate,buildingthevegetablecommunitiesandautomatedadditionalairsystem,etc,thusgivingtheengineerparameters.Keywords:constructedwetlands;verticalflow;technologicaldesign(:　)(上接第13页)[4].[R].:,2006.[5]　,,　,.[J].,2007,(3):42-44.[6],　.[R].:,2006.ResearchontheProblemsinHybridTrussArchBridgeandItsReinforcementSchemeYANYun,XUHai-yan,SHANGGuan-xing(SchoolofCivilEngineeringandArchitecture,EastChinaJiaotongUniversityNanchang330013,China)Abstract:Thesourcesofproblemsforthepre-stressedconcretehybridtrussarchbridgearediscussed.Theshortageofconstructionconnection,intensityanalysismethodandinternalforceadjustingarerevealed.Thestresssuperpositionmethodisadaptedtoevaluatethebearingcapacityoftheoldanddangeroushybridtrussarchthatisdividedintoseveralconstructionstages.Afiniteelementmodelissetupandverifiedbyanexample.Thecharactersofthetrussandarcharecompared.Accordingtovarietyofinternalforceoftheinclinedbar,areinforcementschemethattheinclinedbarisre-placedbythecableisalsoadvanced.Itstheoreticfeasibilityisverified.Keywords:hybridtrussarch;problem;reinforce;scheme(:)44　　　　　　　2008