典型人工湿地去污模型之间的关系孔令裕

:1005-0930(2007)03-0302-06　　:X171　　:A　:2006-03-31;:2007-04-23:(1980—),,.:(1962—),,,.E-mail:[e-mail](Ⅱ)孔令裕,　倪晋仁(1.,518055;2.,100871):典型人工湿地去污模型的统一微分方程能够从形式上很好地概括目前从不同理论中得到的各种模型结构.通过调整统一微分方程的结构参数,可进一步获得现行去污模型之间的一系列过渡模型,从而能够系统比较不同类型湿地去除各种污染物的去污特点,为进一步深入探讨不同类型湿地系统中污染物去除模型的适用性、降解过程和复杂反应机理奠定了基础.:;;;,,,,,[1].,.、Monod..,,,.,,、,.1　[2],:dCdt=-kCn(K+C)m(1),m、n;k;K.m=0,n=0,(1)[Ce,Ci]:Ce-Ci=-kt(2)15320079JOURNALOFBASICSCIENCEANDENGINEERINGVo.l15,No.3September2007DOI:牨牥牨牰牥牭牳牤jissn牨牥牥牭牥牴牫牥牪牥牥牱牥牫牥牨牥　　k=k0,V=k0,A/(εh),.,m=0n=1,m=1n=1,Monod.,.,m、n.2　,:dC′dz′=-ΨC′n(1+C′)m(3),Ψ=kεαKm+1-nQ=kτKm+1-n;C′=CK;z′=zZ;Q;ε;h;τ;z;Z;Ψ,;,Ψ,.m,n、,n≤m.,mn.mn[0,1],.k、K,(3),mn[0,1](1).1(a),m/n,m,n-m,Monod.1(b)n-m,m,m/n,Monod.n-mm/n,m=n=1,n-mm/n,Monod.[1],Monod,,.,,,.n=1,m01,Monod,,.3　3.1　:、、,[3].,,[4].2BOD5WestJacksonCounty、CannonBeach、Gustine、BearBay4[5].303No.3:(Ⅱ)1　(mn[0,1])Fig.1　Curvescharacterizedbythegeneralizeddifferentialequation(m、nfrom[0,1])　2　WestJacksonCounty、CannonBeach、Gustine、BearBayBOD5Fig.2　TypicalcurvesforBOD5degradationinWestJacksonCounty、CannonBeach、Gustine、BearBayWestJacksonCountyCannonBeach0.05m/d,[8-9],、BOD5.BOD5,.WestJacksonCounty,、,[6].CannonBeach,.,CannonBeachWestJacksonCounty,n-m.m=1.8,n=1.9WestJacksonCountyBOD5,m=n=2.95CannonBeachBOD5.GustineBearBayBOD5.m=n=2.7GustineBOD5,m=n=2.25BearBayBOD5.3.2　、.,,.3(a)(k=min)、(k=max)k1,V304　　　　　　　　　　　　　　Vo.l15BOD5[8],m=n=2.9、m=2.0n=3.0.3(b)(k=min)、(k=max)k1,VBOD5[8],m=n=2.0m=0.4,n=1.0.3　BOD5Fig.3　TypicalcurvesforBOD5degradationinSurfaceflowandSubsurfaceflowconstructedwetlands　,BOD5,.[9],,.,.,m,n、,m、n.k1,VBOD5,m.(110kg/ha/d),BOD5.0.501/d,1.104/d[10].,m,,、、.3.3　,BOD5NH+4,.BOD、NH+4,.,,.、.,NH+4,,K,[11],305No.3:(Ⅱ)m=n=2.,,,.[11],.(),Monod,m=n=3.NH+4,m1,m=n,.,m、n.BOD5,.,,,K0.2mg/L[11].,.,BOD5NH+4,BOD5,m≤1.4　,,、,..,m,n、,n-mnm/、.,,,Monod,,.,..[1]　GouletRR,PickFR,DrosteRL.Testofthefirst-orderremovalmodelformetalretentioninayoungconstructedwetland[J].EcologicalEngineering,2001,17:357-371[2]　,.(Ⅰ)[J].,2007,15(2):149-155　　　KongLingyu,NiJinren.Relationshipbetweenexistingpollutantremovalmodelsforconstructedwetlands(Ⅰ)[J].JournalofBasicScienceandEngineering,2007,15(2):149-155[3]　,.[J].,1999,19(3):323-327　　　ZhangJiayao,XiaShenglin.Nitrogenremovalbyasubsurfaceflowconstructedwetlandswasterwatertreatmentsystemandnitrogen-transformationbacteria[J].ActaScientiaeCircumstantiae,1999,19(3):323-327[4]　KivaisiAK.Thepotentialforconstructedwetlandsforwastewatertreatmentandreuseindevelopingcountry,areview[J].EcologicalEngineering,2001,16:545-560[5]　IWA.Constructedwetlandsforpollutioncontrol:processes,performance,designandoperation[M].London:IWAPublishing,2000,1-156306　　　　　　　　　　　　　　Vo.l15[6]　,,,.[J].,2005,24(1):7-11　　　YuanDonghai,ZhangMengqun,GaoShixiang,eta.lTheabilitiesandmechanismsofadsorptionphosphorusinsomeclaymineralsandsoils[J].EnvironmentalScience,2005,24(1):7-11[7]　,.[J].,2005,2:40-42　　　WangXiaogao,FengYoul.iApplicationofflyashinwastewatertreatment[J].RecyclingResearch,2005,2:40-42[8]　RousseauDPL,VanrolleghemPA,PauwND.Model-baseddesignofhorizontalsubsurfaceflowconstructedtreatmentwetlands:areview[J].WaterResearch,2004,38:1484-1493[9]　.[J].,1994,16(3):83-86　　　WuXiaole.iThemechanismsofwastewatertreatmentinConstructedwetlands[J].EnvironmentalScience,1994,16(3):83-86[10]　USEnvironmentalProtectionAgency.Subsurfaceflowconstructedwetlandsforwastewatertreatment,atechnologyassessment[R].1993,EPA832-R-93-008[11]　GradyCPLJr,DaiggerGT,LimHC,,.()[M].:,2002,1-674　　　GradyCPLJr,DaiggerGT,LimHCeditor,ZhangXihui,LiuYongdi,translator.Biologicalwastewatertreatment:secondedition,revisedandexpanded[M].Beijing:ChemicalIndustryPress,2002,1-674RelationshipBetweenExistingPollutantRemovalModelsforConstructedWetlands(Ⅱ)KONGLingyu,　NIJinren(1.GraduateSchoolofPekingUniversity,Shenzhen518055,China;2.MinistryofEducationKeyLaboratoryofWaterandSedimentSciences,Beijing100871,China)AbstractThegeneralizeddifferentialequationoftypicalpollutantremovalmodelsforconstructedwetlandscouldembraceexistingmodelsasspecialcasesproposedpreviouslybyotherinvestigators.Moreover,Thetransitionalmodelsbetweentheexistingmodelsaregotwithvaryingstructuralparameters.Thus,thecharacteristicofpollutantremovalindifferenttypesofconstructedwetlandsarecompared,whichissignificanttofuturestudiesonpollutantremovalmodels、pollutantdegradationprocessesanditsmechanisms.Keywords:pollutantremovalmodels;constructedwetlands;generalizeddifferentialequations;structuralparameters307No.3:(Ⅱ)