地下水六价铬运移的仿真及场地修复限值探讨赵庆辉

*12211.7121002.100012COMSOL。3.17mg/kg。NUMERICALSIMULATIONOFTRANSPORTATIONANDMIGRATIONOFHEXAVALENTCHROMIUMINGROUNDWATERANDREMEDIALGUIDELIMITVALUEOFTYPICALCHROMIUMSLAGCONTAMINATEDSITESZhaoQinghui12WangXingrun2ZhangZengqiang11CollegeofResourcesandEnvironmentalScienceNorthwestA＆FUniversityYangling712100China2.InstituteofSolidWasteManagementChineseResearchAcademyofEnvironmentalSciencesBeijing100012ChinaAbstractChromepollutionisoneofimportantfactorsaffectingpollutionofgroundwater.TakingaccountoftheeffectofvariableheadongroundwaternumericalsimulationoftransportationandmigrationofhexavalentchromiumisdonebyusingCOMSOLandthechanginglawofmigrationofpressureheadandhexavalentchromiumingroundwaterisgiven.Itprovidesimportantanalyticaldataforresearchonpollutionandpredictionofchromepollutioningroundwater.AccordingtothecalculationstherestorationvalueofCr6+was3.17mg/kgforthegroundwater.Keywordschromepollutionseepagenumericalsimulationrestorationlimitvalue*8632009AA063101。0。。Cr6+。、、、、、1-2。、、COMSOLCr6+。1Cr6+。Cr6+。Cr6+。1.1、3μsHt=xKxxH()x+yKyyH()y+W1HmKxx、Kyy、m/sμsLWl/s。ts。6120114292DOI:10.13205/j.hjgc.2011.02.013Hxytt=0=H0xy2HxytΓi=H1xytxy∈Γit031.2、、3θCt=xiθDijCx()j－θuiCxi+Iij=xy4Ckg/m3Dm2/sux、uyx、ym/sIkg/m3·sθ。Cxyt=0=C0xy5CxytΓ1=C1xytxy∈Γ16nDijCxjcosnxiΓ2=0xy∈Γ2t0ij=xy7219881989199910Na2Cr2O7·2H2O4000t、4.8m3。。1。AA、B、C31m。1000m1800m、377.0mm。1471。HJ/T166—2004《》1m1A。13。1311.7m、1044.7m1370333.0m2。、x、y0.498m/d。41.2m3/d1.0kg/m3。、0。3.1、01。COMSOL360d2。t=10d、t=30d、t=360d71201142923、45。。1Hin31mρ1000kg/m3Q41.2m3/db30mθs0.3Co1.0kg/m3Ks0.00243m/sα11.18mα25.91mu0.498m/d2310dCr6+Cr6+。。、Cr6+、430d5360d。Cr6+A、B、C、。A。ACr6+48.80mg/L0.53mg/LACr6+42.1mg/L0.32mg/L。。3.2Cr6+Cr6+4-56-7ACB。“1”18。1Cr6+0.093mg/L8120114292Cr6+。。t→∞1C0ACr6+6。ACr6+0.093mg/L1Cr6+。6CCA41COMSOL、。2ACr6+、3.17mg/L。3、、。1.J.19943160-163.2.J.1998126-29.3.M.200768-7192-95.4U.S.EPAOfficeofSolidWasteWashingtonDC20460.DatacollectionforthehazardouswasteidentifionruleSection9.0HumanreceptordataEB/OL.1999.http//@163.com2010－10－09櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅櫅··201155—7IFATCHINA+EPTEE+CWS2011。、、、、。201092010111E7E68000。IFATCHINA+EPTEE+CWS20112。IFATCHINA+EPTEE+CWS2011201155—7。