不溶性淀粉黄原酸酯在处理含铜废水中的应用

①邓再辉(,410000)　:(ISX),ISX、pH、。,ISX1.4,40min,Cu2+97%,Cu2+0.2mgL。:;;ApplicationofInsolubleStarchXanthateinTreatmentofWastewaterContainingCopperIonsDENGZai-hui(ChangshaWomen'sUniversity,Changsha410000,Hunan,China)Abstract:Thetreatmentofwatercontainingcopperionsusinginsolublestarchxanthate(ISX)wasstudied.TheeffectofsuchfactorsasISXdosage,pHvalueofreactionliquidandreactiontimeontheefficiencyofcopperion-remavalisinvestigated.ItisfoundthatwhentheISXdosageis1.4timesofitstheoreticaldosageandthetimeforagitatingatroomtemperatureis40min,theCu2+removalefficiencyisuptomorethan97%,andtheconcentrationofCu2+intreatedwastewaterisbelow0.2mgL.Keywords:wastewatertreatment;starchxanthate;copperion　　、[1],[2][1,3]。,,。,(ISX)。ISX,。,,,。1　1):ISX();。2):PE703;D2-2;SH。3):,pH,ISX,,,。。2　2.1　ISX[4]ISX。50mL(pH=6.40,ρ(Cu2+)=26.38mgL),ISX,20min,,,Cu2+。1ISX。ISX1,Cu2+0.99mgL,96.24%,ISX,,ISX1.6,Cu2+99%。2.2　pHCu2+2pH。50mL(ρ(Cu2+)=26.38mgL),pH,20min,,,Cu2+。2,pH4,Cu2+95.50%。233200306矿　冶　工　程MININGANDMETALLURGICALENGINEERINGVol.23№3June2003①:2003-01-12　　　　1　ISX(S8.50%)Cu2+ISXgpHρ(Cu2+)(mg·L-1)%0.02961.006.407.6026.380.9996.240.03551.206.407.4026.380.6897.450.04141.406.407.6026.380.4998.160.04741.606.407.6026.380.2299.180.05331.806.407.4026.380.1599.430.05922.006.407.8026.380.1299.560.08883.006.407.8026.380.0799.740.14805.006.407.8026.380.0599.822　pHpHCu2+(mg·L-1)%4.01.1995.505.01.0396.116.01.096.237.400.6897.457.600.4998.167.800.1299.568.400.0399.902.3　50mLCu2+26.38mgL,1.6ISX,pH,pH5.0,pH7.80。,Cu2+,3。3,25min,Cu2+,。3　min10152025303540Cu2+(mg·L-1)0.680.550.420.280.280.260.262.4　ISXISXISX,,。ISXISX。ISXCu2+。50mLCu2+,1ISX,14h,pH6.8,Cu2+。Cu2+0.2mgL,1Cu2+,。2.5　ISX2ISX。50mLCu2+112.34mgL1ISX,ISX,20h,pH=6.4～7.0,,Cu2+。1　ISX2　ISX2,ISX,,。2.6　,。,,。4。4　ISX(ISXS:8.50%)LpHρ(Cu2+)(mg·L-1)Cu2+%17.804.890.1297.5426.5015.360.2398.5035.402.980.0897.31　:ISX1.4;40min。4,ISX,,,97%。,。3　　　ISX,1.4,97%,1(48)453:a′,a′,Sx2-,(1),HS-S0Sx2-。2bd,1(cd),-0.505V,b,Sx2-,(1);-0.54V,d,S0,(2)。S0,(2),6μAcm2,a′,(1)(2)。23,-0.55V,HS-,(1)(2),,。,HS-,Sx2-,Sx2-S0。3　　　1),HS-。2),HS-,-0.55V、-0.35V、-0.05V,Sx2-、S22-S0,,。3),,,HS-Sx2-S22-,S0。[1]　YinQ,KelsallGH,VauhanDJ.Rotatingring(Pt)-discelectrodebe-haviorinhydrochloricsolution.JournalColloidandInterfaceScience,1999,210:375～383[2]　VauhanDJ,KelsallGH.Electrochemicaloxidationofchalcopyriteandtherelatedmetal-enrichedderivatives.AmericanMineralogist,1997,52:725～731[3]　,..,1992(6):4～8[4]　,　..:,1992[5]　ChengX,IwasakiI.Electrochemicalstudyofmultielectrodesystemsandtheirrelevancetothedifferentialflotatinofcomplexsulfideores.MineralsandMetallurgicalProcessing,1999,16(1):69～71[6]　HintikkaVV,LeppinenJO.Potentialcontrolintheflotationofsulfidemineralsandpreciousmetals.MineralEngineering,1995,8(10):1151～1158[7]　WangHX,WangDZ.ImprovedMethodstoDeterminetheElectrochemi-calPeltierheatusingathermistor.I:Improvedheat-sensorelectrodesandlamped-heat-capacityanalysis.JournalofElectroanalyticalChemistry,1995(392):13～19(45),0.2mgL。,。[1]　SwansonCL,WingRE,etal.MercuryRemovalFromWasteWaterWithStarchXanthate-CationicPolymerComplex.EnvironSciTechnol,1973,7(4):614[2]　WingRE,DoaneWM,RussellCR.Insolublestarchxanthate:useinheavymetalremoval.JApplPolymSci,1975,19(3):847～854[3]　USPatent3979296.Filter:WendellBastgen,BetzdorfGermany[4]　,..,1989,8(1):47～5148　　　23