城市垃圾填埋场地下环境污染及控制对策

:2007206225:(50478006):(1961-),,,,,,,,E2mail:[e-mail].28()Vol128,Sup.20077JournalofChangchunUniversityofTechonology(NaturalScienceEdition)Jul12007,,(,130026):,3,,4,Fe(III)NO-3,,,,,,36mm/a,:;;;;:X799.3:A:100622939(2007)S120136206StudyonundergroundenvironmentpollutionandcontainmentmeasuresinlandfillsiteZHAOYong2sheng,HONGMei,DONGJun(CollegeofEnvironmentandResources,JilinUniversity,Changchun130026,China)Abstract:Thecharacteristicoflandfillleachateandpollutionhavebeenconsideredfirstinthispaper,3landandgroundwaterpollutioncasesbylandfillareintroducedanddiscussed.Thenlaboratorysimulationhasbeendoneforstudyingtheundergroundmigrationofleachatepollutants.Experimentalresultsindicatethatfoursequentredoxzonesareappearedinpollutionplume,i.e.methanogeniczone,ironreductionzone,nitratereductionzoneandoxygenreductionzone.Theterminalelectronacceptorsusedbymicrobesindifferentzonesaredifferent(theyareCO2,Fe(III),NO-3andO2correspondingly).Finally,theBeitiantanglandfillsitehasbeenconsideredasatypicalsiteforcasestudy.Thenumericalmodelhasbeenbuiltforsimulationoftheundergroundpollutants.Differentleachatecontainmentmeasureshavebeenproposedandsimulatedwiththemodel.Theresultsindicatethattheinfiltrationquantityofoutsidewatermustbecontrolledbelow36mm/asothatthegroundwaternearthelandfillsitecanbeprotectedfrompollution.Keywords:landfillsite;leachate;groundwaterpollution;redoxzones;pollutioncontainment.1,,,,,,,[1,2],,1.2,8%,[3],,,,,,[1]2,,,:(1),COD60000mg/L,,,[4];(2),1000mg/L,85%90%;(3),;(4),,,,;,,,[4],,,pH,BOD5TOCCODCr;,,pH6.57.5,BOD5TOCCODCr,[5]33.1,10000m2,1000t/d,2003,15,,23m,,,,300m,,112004,3122731,:VOCsSVOCs,,,S2S3(22),2.039mg/L1.713mg/L,255214,0.02mg/L,23.2,1978,20044,,,,,,33(),,;,200469,4(W22W23W25W26)2(W21W24);2(E21E22),1(E23),1(E24);1(S1),1(S2),3(),1,4412,SO2-4NO-3NO-2NH+4COD(CrMnNiCuAsSeCdHgPbZn)(1,121,22),,(W22)2(22)2,E21DDT,1.9g/L,A,(22)4.176mg/L,522A(22),,AlFeMnCrCuZnAsSeCdHgPb,,A(22)[k][b][a],B(40cm),3.3,,1500m,1501200m,,1989,,200036104m2200440.82104m2,1018m,831()28,,,,GB/T14848293,:Cl-SO2-4NO-32NNH+42N()2004,(GB/T14848293),,55,,:0.802.502.504.254.257.27.24,,,,,O2NO-3Mn(IV)Fe(III)SO2-4CO2[6,7],,,:;,100cm,7cm,80cm11/(g/cm3)pH15.00%0.431.537.37,58cm/d,,(12cm),TOCNH+4NO-3NO-2Fe2+DOHCO-3,4,Fe(III)NO-3,66931,:(1)020cm,HCO-3,10353mg/L1000mg/L,,CO2(CH3COOH):CH3COOHCH4+CO2CO2+4H2CH4+2H2O,,,,(2)2652cm,Fe2+13.61mg/L,66%,Fe2+,,Fe(III),,Fe2+,:CH3COOH+8Fe(OH)3+15H+2HCO-3+8Fe2++20H2OFeMnpH57,Fe2+Mn2+,,,FeSFeSFe2+,Mn(IV)Fe(III),Mn(IV)(3)30.762cm,NO-2,0.097mg/L,42%,,,NO-3NO-2NO-3,:CH3COOH+2NO-3+2H+2HCO-3+N2+2H2O(4)64cm,3.56mg/L,,O2,,,:CH3COOH+3O2+4H+2CO2+4H2O4,O2NO-3Fe3+CO2,,,,,,,5:(1),;(2);(3),,,;,,,,,,[8],,,,5.1,GMS,(,),(),7(),,36mm/a,041()2875.2,,,,,:(1)L=0.5m,K=10-7cm/s,H=0.5m;(2)L=1m,K=10-7cm/s,H=0.5m;(3)L=2m,K=10-7cm/s,H=0.5m,0.5m,,7080m;(2),1m,,,30m;(3),,0.5m,6(1)(),,(2),,(3),,;,(4),:[1].[M].:,19981[2],.[M].:,19941[3].()[M].:,20001[4]GeorgeTchobanoglous,HilaryTheisen,SamuelVigil,IntegratedSolidWasteManagement:Engi2neeringPrinciplesandManagementIssues[M].[S.l.]:McGraw2Hill,20001[5]FrankKreith.Handbookofsolidwastemanagement[M].[S.l.]:McGraw2Hill,19941[6]NayMM,SnozziA,ZehnderJB.Fateandbehavioroforganiccompoundsinanartificialsaturatedsub2soilundercontrolledredoxconditions:thesequen2tialsoilcolumnsystem[J].Biodegradation,1999,10:752821[7]LyngkildeJ,ChristensenTH.Redoxzonesofalandfillleachatepollutionplume(Vejen,Denmark)[J].JournalofContaminantHydrology,1992,10:27322891[8],,.[M].:,20051141,: