二级水DOM在活性炭及土壤层处理中的迁移转化

4112200912JOURNALOFHARBININST[e-mail]-8/XAD-4DOMHPO-A、HPO-N、TPI-A、TPI-NHPI.HPO-AHPIDOMDOC75%.GACHPO-A、HPO-NTPI-ATPI-NHPISATGACHPIDOM70.1%.GACTHMFP55.6%HPO-A、TPI-A、TPI-NSTHMFPSATTHMFP67.2%.SATGAC+SATSTHMFP.X3X5X7A0367－6234200912－0046－07FateofdissolvedorganicmatterDOMinsecondaryeffluentduringgranularactivatedcarbonadsorptionandsoilaquifertreatmentZHAOQing-liang12WEILiang-liang1XUEShuang13YOUPei-yuan1JIATing1WANGKun121.SchoolofMunicipalandEnvironmenta[e-mail]nWaterResourcesandEnvironmentsSKLUWREHarbinInstituteofTechnologyHarbin150090China3.SchoolofEnvironmentalScienceLiaoningUniversityShenyang110036ChinaAbstractInordertofurtherremovalthetrihalomethanesprecursorsinreclaimedwaterduringthesecondaryef-fluentreusetheremovalandtransformationofdissolvedorganicmatterDOMinsecondaryeffluentduringthegranularactivatedcarbonGACadsorptionandthelaboratory-scalesoilaquifertreatmentSATwasstudied.DOMwasfractionatedwithXAD-8/XAD-4resinsintofiveclasseshydrophobicacidHPO-AhydrophobicneutralHPO-NtransphilicacidTPI-AtransphilicneutralTPI-NandhydrophilicfractionHPI.TheresultshowedthatGACwaspreferentialinremovingHPO-AHPO-NandTPI-A.ThehighremovalefficiencyofHPIduringthefollowedSATtreatmentresultedinahigherDOMremovalefficiencyof70.1%whichwasonly42.1%duringtheGACtreatment.Uptoa73.1%reductionofTHMFPfrom170.96to46.53μg/LwasfoundforthebulkDOMduringtheSATtreatmentwhereasonlya55.6%reductionoccurredduringtheGACtreatment.ThespecificTHMFPSTHMFPofHPO-ATPI-AandTPI-NweredecreasedefficientlyduringtheGACtreatmentwhilethatoftheDOMfractionsallshowedaconversetrendinthefollowedSATtreatment.HPO-AandHPIwerethemainTHMsprecursorsofthesecondaryeffluent.TheGACtreatmentwaspreferentialinadsorbingmoreHPO-AwhiletheSATtreatmentinclinedtoremovemoreHPI.KeywordssoilaquifertreatmentdissolvedorganicmatterfractionationtrihalomethaneformationpotentialspecificTHMFP2008－03－02.973－2004CB418505.1962—.SAT、1－2、、3.SATDOMDBP4－5.DOM6－7.DOMSAT8－10GAC11－12DOMGAC+SATDOMGAC+SATFT-IR.DOMDOMGAC+SATDOMTHMFP、STHMFPFT-IR.11.14℃.200662007620n=201.1n=20pH7.8±0.1/mg·L－13.2±1.7COD/mg·L－150±4.6/mg·L－17.3±1.7TOC/mg·L－19.7±1.3/mg·L－13.3±1.2DOC/mg·L－18.3±0.9/mg·L－140.9±10.4UV-254/m－116.3±0.7/mg·L－129.9±11.11.2SAT355cm、10cm1.GAC0.1m/h、SAT2cmSAT0.5mL/min.7d/7d.进水蠕动泵溢流槽回流水水箱取样口流向模拟土壤柱土壤(50cm)砂(2.5cm)砾石(2.5cm)取样口二级水GAC吸附柱取样口()1SAT1.3Aiken13DOMXAD-8XAD-4DOM5HPO-A、HPO-N、TPI-A、TPI-NHPI.14.2.15L0.45μmpH215XAD-8XAD-4XAD-4HPI20.1mol/LNaOH2XAD-8XAD-4XAD-8XAD-4HPO-ATPI-A3XAD-8XAD-4HPO-N、TPI-N75%/25%..HPI.4℃.1.4THMFPEPA5710B.DOMDOC·74·12DOM1.0mg/LpH7±0.2pHNaClONaClOCl2=3×DOC+7.5×NH4+15.20.0±0.5℃120hNa2SO3THM.5L水样酸化至pH=275%乙腈/25%去离子水HPO蛳NTPI蛳N0.1mol/LNaOH溶液API蛳AHPO蛳AXAD蛳4树脂柱75%乙腈/25%去离子水XAD蛳8树脂柱0.1mol/LNaOH溶液HPI21.5GACGAC.1000m2/g76%94.4%.GACGAC2hGAC120℃.GAC50cm32cmGAC10cmGAC30cm3GAC.GAC1h20℃Shirra16Schreiber17.1.6DOCUV-254TOC-5000UV-2550.NH4+-NCM-03N.THMFPAgilent4890.2～5mgHPO-A、HPO-N、TPI-ATPI-N.Perkin-ElmerSpectrumOneB4000～400cm－1.1.0.22.1GACSATDOCHPO-AHPIDOMDOC75%3DOC.HPO-NTPI-NDOM18%TPI-A6.8%.GACGAC+SATDOM45.0%70.1%DOC9.58mg/L5.273.31mg/L.3GACHPO-A、HPO-NTPI-A52.0%、46.2%47.3%TPI-NHPIDOMHPI28.1%SATDOMHPIDOCSATGACDOC65.4%DOCGAC2.08SAT1.20mg/LSAT.GACSATDOMDOCHPIHPO-AHPO-NTPI-NTPI-A.18GAC+SATSATDOCDOCGAC+SATHPO-AHPI.AikenMauriceHPO-AHPO-NTPI-A、TPI-NHPI19-20GACDOMGACDOMGACDOMHPO-A、HPO-NTPI-ARauch21SATDOMFox22DOMSATDOMHPI、HPO-AHPO-N23.SATHPIHPO-A、HPO-N、TPI-NTPI-A·84·41GACSAT.二级水GAC出水SAT出水129630HPO蛳AHPO蛳NTPI蛳ATPI蛳NHPIDOMDOC/（mg·L-1）3DOMGAC、SATDOC2.2GACSATTHMFPDOMTHMFPTHMFPDOCTHMFPDOCDOCTHMFPSTHMFPμgTHMFP/mgDOC24.二级水GAC出水SAT出水450360270180900HPO蛳AHPO蛳NTPI蛳ATPI蛳NHPIDOMTHMFP/（滋g·L-1）4DOMGAC、SATTHMFPTHMFPGAC397.4176.5μg/L55.6%SAT130.4μg/L.SATTHM-FP34.0%67.2%18GAC+SATTHMFP.4GACHPO-A、TPI-ATPI-NTHMFP70.7%、69.8%63.5%HPO-NHPI38.6%、37.8%SATHPIDOMTHMsHPITHMFPGAC37.8%75.6%.SATHPO-A、HPO-N、TPI-ATPI-NTHMFPTPI-ATPI-NSATTHMFPGAC.GACDOMTHMFPHPO-A、TPI-ATPI-NTHMsSATDOMTHMsHPI10GAC+SATDOMTHMFPHPIHPO-ATPI-NTPI-AHPO-N.5GACHPO-A、TPI-ATPI-NSTHMFP29.1%、42.7%、40.9%HPO-NHPISTHMFP39.3%7.5%SATSTHMFPGAC6.SATSTHMFPDOMHPO-AHPI1018GAC+SATSTHMFP.GACHPO-A、TPI-ATPI-NSTHM-FPGACTHMsTHMFPDOCHPIHPO-NSATGACDOMSTHMFPSATDOMSATDOM.GAC+SATDOCSATTHMFP.7550250二级水GAC出水SAT出水HPO蛳AHPO蛳NTPI蛳ATPI蛳NHPIDOMSTHMFP/(滋g·mg-1)5DOMGAC、SATSTHMFPKim25253nm203nmA253/A203DOMTHMFP.6DOMA253/A203STHMFP·94·12DOMSAT1640～1550cm－1HPO-ACCSATHPO-ASATSTHMFP1400～1390cm－1HPO-ASAT2950～2850cm－1GACSATSATC—H、C—H2C—H3HPO-N1470～1390cm－1GACGACHPO-NSAT1470～13902950～2850cm－1SATHPO-NC—H、C—H2C—H3SAT875～830cm－1SATC—HHPO-NSATTHMFPTPI-A1280～1137cm－1GACTPI-AC—O、GACSATSAT1470～1390cm－1GACSATGACSATTPI-N1390～1332cm－1TPI-NSATTPI-NC—H.31GACDOMHPO-A、HPO-NTPI-ASATHPIHPO-AHPO-N.2GACHPO-A、TPI-ATPI-NTHMsSATHPITHMs.3GACHPO-A、TPI-ATPI-NSTHMFPHPO-NHPISTHMFPSATSTHMFPGACSATSTHMFPTHMFP.4SATGACGACHPITHMFP.1CONROYOQUANRUDDMELAWPetal.FateofwastewatereffluenthER-AgonistsandhER-Antago-nistsduringsoilaquifertreatmentJ.EnvironSciTechnol20053