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于红艳,奚立民,王仙菊(,318000)[目的]探讨腐植酸对重金属污染土壤的修复效果[方法]在固体废弃物拆解地重金属污染土壤中加入不同用量的滩涂泥提取的腐植酸,测定土壤中水溶态和有效态重金属CuZnPbNi的含量[结果]腐植酸能有效络合吸附土壤中的重金属加入腐植酸后,污染土壤中的水溶态和有效态重金属CuZnPbNi的含量均明显下降当100g土样中加入30mg腐植酸时,腐植酸对污染土壤中水溶态重金属ZnCuPbNi的去除率分别为38.6%50.9%45.5%23.9%,对有效态重金属ZnCuPbNi的去除率分别为28.9%64.7%31.0%53.5%[结论]腐植酸可以有效修复固体废弃物拆解地重金属污染土壤,每100g土壤中加入30mg腐植酸最为合适土壤污染;腐植酸;水溶态;有效态X53A0517-6611(2008)23-10154-02StudyonRemediationEffectofHumicAcidonHeavyMetalContaminatedSoilofSolidWasteDisassemblingPlaceYUHong-yanetal(TaizhouVocationalTechnicalCollege,Taizhou,Zhejiang318000)Abstract[Objective]Theamiwastodiscusstheremediationeffectofhumicacidonheavymetalcontaminatedsoi.l[Method]Byaddinghumicacidextractedfrombeachmudwithdifferentamountintotheheavymetalcontaminatedsoilofsolidwastedisassemblingplace,thecon-tentsofheavymetalofCu,Zn,PbandNiinwatersolubleandavailablestateinsoilweredetermined.[Result]Thehumicacidcouldcom-plexandabsorbtheheavymetalinsoileffectively.Afteraddinghumicacid,thecontentsofheavymetalofCu,Zn,PbandNiinwatersolu-bleandavailablestateincontaminatedsoilweredecreasedsignificantly.When30mgofhumicacidwasaddedinto100gofsoilsample,there-movalrateofhumicacidtothewatersolublestateofheavymetalofZn,Cu,Pb,Niincontaminatedsoilwere38.6%,50.9%,45.5%,23.9%resp.,andtheremovalrateofhumicacidtotheavailablestateofheavymetalofthatwere28.9%,64.7%,31.0%,53.5%resp.[Conclusion]Humicacidcouldeffectivelyremediatetheheavymetalcontaminatedsoilofsolidwastedisassemblingplaceandper100gofsoiladded30mgofhumicacidwasmostappropriate.KeywordsHeavymeta;lSoilcontamination;Humicacid;Watersolublestate;Availablestate于红艳(1976-),女,浙江温岭人,在读硕士,讲师,从事废弃物的处理处置与资源化利用研究2008-05-2320,[1],,,,,,[2],,,,,[3][4],,,[5-6],CuZnPbNi4,,,4,,11.11.1.1,20km,11.1.2,0.01mm1Table1BasicphysicochemicalpropertiesoftestedsoilSoilpHpHvalueg/kgOrganicmatterZnmg/kgTotalZnCumg/kgTotalCuPbmg/kgTotalPbNimg/kgTotalNi6.35.82841642886180Pollutedsoil6.86.18048017628Controlsoil80%,[7],,,;20%,(B=1B5),2h,2d,,35%pH26h,,,(60~80e),,[8],[9]1.21.2.1[10]-,,1mol/LHCl,2h,20min,1.2.21020304050mg100g,60%,500ml6h4,(W)(W+HA)(CR)(CR+HA)22.11~2张杨林卢瑶,JournalofAnhuiAgr.iSc.i2008,36(23):10154-10155,101581Fig.1Effectsofadditionamountofhumicacidonthecon-tentofheavymetalinwatersolublestate,,,100g30mg,ZnCuPbNi60.3110.786.515.6mg/kg,,,2Fig.2Effectsofadditionamountofhumicacidonthecon-tentofheavymetalinavailablestate,30mg6h,,30mg/100g,,,pH,,2Table2Effectsofhumicacidtreatmentonthecontentofheavymetalinwatersolublestatemg/kgTreatmentsZn123Cu123Pb123Ni123W99.896.398.5224.9225.6225.5158.9158.8158.720.520.620.4W+HA58.459.862.7110.5110.9110.886.486.686.515.415.915.5CR14.413.913.724.023.523.439.239.739.45.64.75.3CR+HA9.08.78.416.816.516.726.226.326.23.12.83.0:W;W+HA;CR;CR+HANote:Wstandsforuntreatedpollutedsoi;lW+HAstandsfortherepairofhumicacidinpollutedsoi;lCRstandsforuntreatedcontrolsoi;lCR+HAstandsfortherepairofhumicacidincontrolsoi.lThesameasfollows.3Table3Effectsofhumicacidtreatmentonthecontentofheavymetalinavailablestatemg/kgTreatmentsZn123Cu123Pb123Ni123W131.4129.8130.6530.4530.2529.8236.1236.4235.731.430.931.2W+HA93.192.391.3187.2187.5187.0162.9162.5163.314.414.514.5CR39.438.939.280.180.379.957.156.856.76.96.46.5CR+HA15.715.815.448.448.748.234.934.534.23.63.83.43Fig.3Percentageofheavymetalsunderavailablestateandwatersolublestateintotalamount(下转第10158页)1015536卷23期于红艳等腐植酸对固废拆解地重金属污染土壤修复效果的研究40~10cmFig.4Cdcontentin0-10cmsoillayeraftersludgeapplication,,CuPb(2),pH(3),,,,[1]张清敏,陈卫平,胡国臣,等.污泥有效利用研究进展[J].农业环境保护,2000,19(1):58-61.[2]MININNIG,SANTORIM.Probiemsandperspectiveofsludgeutilizationinagriculture[J].EcosystemsandEnvironmen,t2002,6(18):291.[3]邵孝侯,邢光熹,侯文华.连续提取法区分土壤重金属元素形态的研究及其应用[J].土壤学进展,1994,22(3):40-46.[4]周立祥,沈其荣,陈同斌,等.重金属及养分元素在城市污泥主要组分中的分配及其化学形态[J].环境科学学报,2000,18(4):269-274.[5]黄现民,史衍玺,王玉军,等.污泥中重金属在棕壤和褐土上的淋洗特性的研究[J].农业环境保护,2002,21(1):19-22.[6]KARATHANASISAD.SubsurfacemigrationofCopperandZincmediatedbysoilcolloids[J].SoilScienceSocAmJ,2002,63:830-838.[7]白庆中,宋燕光,王晖.有机物对重金属在粘土中吸附行为的影响[J].环境科学,2000,21(5):36-38.[8]LUOYM,CHRISTIEP.BioavailabilityofCopperandZincinsoilstred-tedwithalkalinestablilzed[J].JEnvironmentQuality,2003,27:335-342.[9]BILLIEJ,LINDSAY,TERRYJLOGAN.Fieldresponseofsoilphysicalprop-ertiestosewagesludge[J].LEnvironmentQuality,2003,27:534-542.[10]MERRINGTONG,MADDENC.Changesincadmiumandzincphytoavai-labilityinagriculturalsoilafteramendmentwithpapermilsludgeandbio-solids[J].CommonSoilSciencePlantAna,l2000,31:759-776.[11]BERTIWR,JACOBSLW.Distributionoftraceelementsinsoilfromre-pedtedsewagesiudgeappilcation[J].JEnvironmentQuality,1998,27:1280-1286.[12]BUNZELK,TRAUTMANNAHEIMERM,CHRAMELPS.Partitioningofheavymetalinasoilcontaminatedbyslag:Aredistribitionstudy[J].JEnvironmentQuality,1999,27:329-334.(上接第10155页)2.230mg100g,23,,100g30mg,ZnCuPbNi34.6%13.7%17.9%11.4%21.2%6.7%9.8%8.7%(3),ZnCuPbNi38.6%50.9%45.5%23.9%,Cu,46.0%32.3%26.6%17.3%32.5%11.4%18.4%8.1%(3),29.4%64.7%31.0%53.5%3,,,ZnCuPbNi38.6%50.9%45.5%23.9%,29.4%64.7%31.0%53.5%,,30mg/100g[1]沈东升,王君琴,贺永华,等.进口废电器拆解过程的主要污染因子及其排污系数研究[J].浙江大学学报,2004,30(3):237-240.[2]王鹏.电子废弃物的污染防治与资源化[J].中国资源综合利用,2005(9