人工湿地污水处理工艺与设计

王薇,俞燕,王世和(东南大学环境工程系,南京210096):,,,,:;;:X703:A:1002-1264(2001)01-0059-04ProcessandDesignofWastewaterTreatmentbyConstructedWetlandWANGWei,YUYan,WANGShihe(DepartmentofEnvironmentalEngineering,SoutheastUniversity,Nanjing210096,China)Abstract:Asanewtypeofecologicalwastewatertreatmenttechnology,constructedwetlandhasbeendevelopedatagreatspeedinitsapplication.InordertosatisfytheurgentneedofthistechnologyinChina,thebasicconfiguration,typesanddesignmethodsofcurrentwastewatertreatmenttechnologybyconstructedwetlandareintroducedinthispaper.Thecostofconstructedwetlandcomparedwithothertreatmenttechniquesisalsoanalysed.Itishopedtoprovidebasisforthefutureresearchandprocessdesignofconstructedwetland.Keywords:construcedwetland;wastewatertreatment;processdesign,,,,,,,,,,70,,1,3,,,,,,:(FWS),(SFS)FWS,,(0.1-0.6m)SFS,,,,SFS,,,;,,,,,FWS,:4,15914120012URBANENVIRONMENT&URBANECOLOGYVol14,No.1Feb.2001:2000-08-03a.;b.;c.;d.1,,;,,,,,,(2),a.;b.;c.;d.22:,,2.1FWS,,:Ce/C0=exp(-KTt),ReedFWS[1]:CeC0=A[-CKTAV1.75LWQnQd]Tchobanoglour,T,:KT=K20(1,1)(T-20)1%,:CeC0=0.52exp[-CKTAV1.75LWQn4.6S1/3Qd]AS,KaklecKnight:AS=(0.0365Qd104k)ln(C0-C*Ce-C*),k34m/y,BOD5:C*=3.5+0.05C0FWS,18-110kgBOD5(had),FWS150-500m3/(had),,,,,2.2SFSSFS,2,,[1-3],:Q=KsAcSvKs,,,10-3m/s,Ks10-4m/sRe1-10,,Darcy,Ergum[1-3]S=150v[(1-n)/Dpn]2/g+1.75(1-n)v2/DpngAS[1]:AS=Q(lnC0-lnCe)/(KTDn):KTKT=K20(1.1)T-20,SFSK20n,K20=K0(37.3n4.172),K0=1.839d-1,K0=0.198d-1601412001KitkuthAS=5.2Q(lnC0-lnCe):AC,As,;m2;Ce,C0BOD5;mg/L;Q:m3/d;KS;m3/(m2d);K20,KT20,T;d-1;KO;d-1;L;m;W;m;D;m;S;(-),L20-50m,,,,L/W,31,11,,L/W11D,,,D0.6-0.7m;,D0.3-0.4m,,Q/AC8.6m/d,1%-8%,,2%2.3,1):,2-3,,,,;,2):,,,,,,,,0.6-0.7m,,,10cm,4cm,1-3/m23):,,,0.5m,,,,,,,,4):60-100mm,2-2.5kg/100kg,5-10mm,150-250mm,,5-10mm,,,10%-15%5):,,,,SFS61,:,,;,,;,,6):,,,0.5-1.0mm,,,3[2-3]3.12:,25mm3,0.2m,,0.2m,,,,,1-2,,,,,3.2,,,,,1/10-1/21,1/4,10%1()(/m3)()(/m3)(m2/m3)33006601000.202.671000.2015008301000.201.2054757436.50.201.2042.9138=2.00.022.79,,;,,,4,,,,,,,,,[1],.,:,1990.[2].[J].,1993;14(2):39-43.[3].[J],,1996;(1-2):1-8.[4]M.B.Green,ConstructedReedBeds:ACostEffectioveWaytoPolishWastewaterEffluentsforsmallCommunities,Wat,Eviron.Res,1994;66(4):188-193.[5]S.C.Reed,SubsurfaceFlowWetlandAPerformanceEvaluation,Wat,Environ.Res.,1995;67(2):244-248.:(1978-),,,,2621412001