2种南方土壤污水渗滤土地处理系统中磷元素的放射性示踪动力学比较实验

:,,1957,,,*(No.49661005)2种南方土壤污水渗滤土地处理系统中磷元素的放射性示踪动力学比较实验*孙冶1普家云2(1.,570203;2.,650034),(32P),,,,:(FeP)(OP)(AlP)(CaP);AlPFePOPCaP32PComparativeexperimentsontheradioactivetracerkineticsofphosphorelementinsewagefiltersoildisposalsystemoftwosouthernsoilsSUNYe1,PUJiayun2.(1.HainanSupervisionStationofRadioactiveEnvironment,HaikouHainan570203;2.YunnanSupervisionStationofRadioactiveEnvironment,KunmingYunnan650034)Abstract:Inordertoinvestigatetheeffectofsoiltypesonphosphoruseliminationofsewagefiltersoilprocessingsystem,theauthorestablishedtwosimulatedsoilcolumnsbypurplesoilandredsoilrespectivelyandadopted32Ptraceapproachtostudydynamicbehaviorsofthephosphorusinvariouslayersoftwosoilcolumns.Theresultsindicatedthattheretentionratioofphosphorusinredsoilishigherthanthatinpurpleone,butthemotilityinpurplesoilwasstrongerthanthatinredone.ThevariousinorganicphosphorusinpurplesoilwereorderedasFePOPAlPCaP,whiletheywererankedasAlPFePOPCaPinredsoil.Theseinorganiccomponentsshoweddiversityinthedifferentlayersofsoil.Keywords:32Ptracermethod;soil;comparison,,[1](32P),,2,,,11.1供试材料,1,;,21Table1Maincomponentsofsewagesamplemg/LBOD5CODSSTNTP73.40135.258.3022.821.4680.854NaH232PO4,19.00104Bq/mL;17.38104Bq/mL1.2试验处理PVC(2.8cm32cm),,,,,,58333201132Table2Mainphysicalandchemicalpropertiesofsoilsample/cmpH1)/%1)/%1)/%/(mgkg-1)/(gcm-3)0~206.501.850.0353.533711.2440~606.871.150.0223.022371.45140~1607.570.360.0163.452511.330~205.653.940.1237.603090.9940~604.752.500.1127.713730.98140~1604.421.630.1257.853741.07:1)332PTable3Distributionof32Pintheleachatefrompurpleandredlayersofsoil/cm/(BqmL-1)/(BqmL-1)/%32P/(BqmL-1)/%0~2019.0010458.1110369.4243.9810375.6820~4058.1110312.5010324.0078.5710262.8640~6012.50103568.906.28539.2094.7960~80568.9074.700.2667.8090.7680~10074.7011.800.3410-111.4096.61100~12011.806.400.0310-14.6071.880~2017.38104571.7099.67488.5085.4420~40571.4068.900.2964.3093.3240~6068.9012.000.3310-111.8098.3360~8012.003.700.4810-23.6097.3080~1003.702.100.9510-31.6076.19,10cm,,2~3mL/min0.5/min,,,,24,15~251.3取样和测定,BH1216,,32P32P:32P=-(1-)100%(1)1.4土壤中无机磷的形态分级和测定45d100,[2],,22.132P的渗滤情况,,232P33,32P2,,(=100%-)1%,[3],1,32P2,,,,(AlP)(FeP)[4],,,,5924Table4Distributionsofinorganic32Pofdifferentformsinpurplesoil/cm32P/(BqmL-1)AlP/(BqmL-1)/%FeP/(BqmL-1)/%OP/(BqmL-1)/%CaP/(BqmL-1)/%0~2015.5510419.5110312.5511.2610472.4119.5810312.6037.381022.4020~4030.1010339.6310213.1719.5510364.9658.7410219.52711.202.3640~6073.17102702.409.6050.7610269.3613.1210217.92227.803.1160~8059.0014.6024.7436.6062.034.507.633.305.595Table5Distributionsofinorganic32Pofdifferentformsinredsoil/cm32P/(BqmL-1)AlP/(BqmL-1)/%FeP/(BqmL-1)/%OP/(BqmL-1)/%CaP/(BqmL-1)/%0~2036.5310415.9310443.6213.8510437.9223.551036.4566.011021.8120~40531.50246.0046.28190.7035.8839.427.4221.324.0140~60126.7062.6449.4528.2622.3010.087.9613.0410.3060~80107.0243.1040.2821.6020.195.605.239.228.62,[5]1232PFig.1Changesofretentionrateof32Pinthetwotypesofsoil2.2土壤中无机磷的分级及其在各土层中的分配,,2.2.142,:FeP(OP)AlP(CaP):0~20cm,FePOPAlPCaP;20~40cm,FePOPAlPCaP;40~60cm,FePOPAlPCaP;60~80cm,FePAlPOPCaPAlPOP,AlP2,OP,3OPCaP,[6]2Fig.2Distributionsofinorganic32Pofdifferentformsintheeachlayerofpurplesoil2.2.253,:AlPFePOPCaP:0~20cm,AlPFePOPCaP;20~40cm,AlPFePOPCaP;40~60cm,AlPFeP3Fig.3Distributionsofinorganic32Pofdifferentformsinredsoil(下转第87页)6033320113turezonesinnonuniformflow[J].GroundWater,1987,25(3).[8]JAVANDELI,TSANGCF.Capturezonetypecurves:atoolforaquifercleanup[J].GroundWater,1986,24(5).[9]GRUBBS.Analyticalmodelforestimationofsteadystatecapturezonesofpumpingwellsinconfinedandunconfinedaquifers[J].GroundWater,1993,31(1):2732.[10]SHANC.Ananalyticalsolutionforthecapturezoneoftwoarbitrarilylocatedwells[J].JournalofHydrology,1999,222(1/2/3/4).[11]CHRISTJA,GOLTZMN.Hydrauliccontainment:analyticalandsemianalyticalmodelsforcapturezonecurvedelineation[J].JournalofHydrology,2002,262(1/2/3/4):224244.[12]COLEBE,SILLIMANSE.Utilityofsimplemodelsforcapturezonedelineationinheterogeneousunconfinedaquifers[J].GroundWater,2000,38(5):665672.[13]FESTGERAD,WALTERGR.Thecaptureefficiencymap:thecapturezoneundertimevaryingflow[J].GroundWater,2002,40(6):619628.[14]VARLJENMD,SHAFERJM.Assessmentofuncertaintyintimerelatedcapturezonesusingconditionalsimulationofhydraulicconductivity[J].GroundWater,1991,29(5):737748.[15]COLEBE,SILLIMANSE.Capturezonesforpassivewellsinheterogeneousunconfinedaquifers[J].GroundWater,1997,35(1):9298.[16]GUADAGNINIA,RIVAM,FRANZETTIS.Statisticsofhydraulicheadinrandomlyheterogeneouswellfieldswithtruncatedmultiscalevariogram[C]//ProceedingsoftheCongressoftheInternationalAssociationforHydraulicResearch.Beijing:TsinghuaUniversityPress,2001:325331.[17]MCELWEECD.Capturezonesforsimpleaquifers[J].GroundWater,1991,29(4):587590.[18]ZLOTNIKVA.Effectsofanisotropyonthecapturezoneofapartiallypenetratingwell[J].GroundWater,1997,35(5).[19]BAIRES,LAHMTD.Variationsincapturezonegeometryofapartiallypenetratingpumpingwellinanunconfinedaquifer[J].GroundWater,1996,34(5).[20]KONY,LEEKK,HYUNY.Optimalgroundwaterremediationde