含镉废水处理技术研究进展

WATERPURIFICATIONTECHNOLOGYVol.32,No.3,2013June25th,201320133231-4WaterPurificationTechnology!!!!!!!!!!!!!![]2012-10-11[]1980-。[e-mail]。。。0.001mg／L。0.1～1.0mg／L50%。0.1mg／L。《》GB8978—19960.1mg／L。[1-2]。。1、、、。。。[3]。、。1。2、、、、、。、、200235、、、、、、,。TU992.3A1009-0177201303-0001-04AdvancesinResearchofTechnologicalProcessesofCadmium-ContainingWastewaterTreatmentChangYanli(OfficeforScience&TechnologyAwardsShanghaiMunicipality,Shanghai200235,China)AbstractSourceandharmfulnessofcadmium-containingwastewaterwasintroduced.Treatmenttechnologiesofcadmium-con－tainingwastewaterweredetailed,whichincludingchemicalprecipitation,ferritemethod,ionexchangeoxidationmembranessepara－tionadsorptionandbiologicalprocess.Advantagesanddisadvantagesofeachmethodwerealsodiscussed.Disposalmethodsofcad－mium-containingsludgewaredescribed.Keywordscadmium-containingwastewatertreatmenttechnologycadmium-containingsludgeadvanceinresearch1典型含镉废水的来源及含镉浓度Tab.1TypicalSourcesandConcentrationofCadmium-ContainingWastewater／mg·L-150～2500.065～0.0891.72～7502.4～5701--Vol.32,No.3,2013.。2.1。CN-、NH3。pH10.0。pH0.15mg／L。pH。—。。1。pH＜11~12。Cd2+pH11.2[5-7]。pH9.84~13.31CdOH2pH9.5~10.5CdOH2[8]。pH=7~9100~500mg／LCd2+15~150mg／L1mg／L[9]。pH8.6~8.8pH。pH=8.5Cd2+0.05mg／L[l0]ksp3×10-338×10-27。Cd2+、、PAM。。2.2、、Fe2+Fe3+。。55~80℃pH9~1030~60min30min。《》GB8978—1996—。CaOH2NaOHpH[12,13]。[12,13]。2.3。。。。0.3~1.25／m350~250mg／L[15]。-。。2.4、Al3+、Fe2+、1Fig.1EffectofCarbonateConcentrationtoSolubilityofCadmium112μg·L-11.1μg·L-111μg·L-10.1μg·L-1-1-3-5-7-9-11CT=10-3.2MCT=10-2MCT=10-1MCT=0lg[Cd]／mol02468101214pH····12432--WATERPURIFICATIONTECHNOLOGYVol.32,No.3,2013June25th,2013、、。、。。[18]pH7.0~8.060min3.0V0.28g／L57.8mg／L99.9%。2.5、、。Mathilde[19,20]30%。[22]。P204-Cd2+400mg／L0.2mg／L。[21]P204、Span80100mg／L99%[23]。[24]--、。[25]19.8~129.2mg／LB-978%~99%。、、。2.6。、、、、。、[26]。。98%。、、、18.515.517.55mg／L0.0950.20.40.04mg／LpH2~8[6]。。2.7、、、、[27]。。[28]。、[29]0.8～1.6mmol／g10min90%。[30]pHpH。[31]。3。。、[31,32]。、。、、。。43--Vol.32,No.3,2013.。。、。、、、。。l.[J].,2005,40(11):26-28.2.Cd2+[J].,2010,5(7):45.3.[J].,2005,7(4):32-33.4.Cd2+Cr6+[R].:,2009:34-36.5.[J].,2010,21(3):70-72.6,,,.[J].,2003,22(6):601-604.7.-[R].:,2003:50-52.8,,.[J].PlantingandFinishing,1999,21(5):38-40.9.[D].:,2008:18-20.10,.[J].,2O05,34(9):545-547.11.、、[J].,2009,5:45-47.12.[J].,2007,11(4):8-10.13,.[J].,2002,4:38-41.14.[J].,1994,(5):443-446.15.[J].,1993,(3):276.16,.[J].PlantingandFin－ishing,2004,26(5):36-38.17.[J].,2007,483-85.l8.[J].,1996,16(6):3-5.19,,,.[J].,2002,(4):38-41.20MathildeRJ.Electrodialyticremovalofcadmiumfromwastewatersludge[J].JournalofHazardousMaterious,2004,106(2):127-132.2l,.[J].,1985,5(5):17-21.22,,,.[J].,2002,30(5):62-66.23.[J].,1999,1l(l):40-41.24.[J].,2002,22(3):15-20.25.-[J].,1999,19(2):45-48.26.—[D].:,2002:53-55.27MariaAMaine,MariaV,Duarte,etal.Cadmiumuptakebyfloatingmacrophytes[J].WaterResearch,2001,35(11):2629-2634.28TJButter.TheremovalandrecoveryofcadmiumfromdiluteaqueoussolutionsbyBiosorptionandelectrolysisatlaboratoryscale[J].WaterResearch,2008,32(2):400.29,.、[J].,2009,19(3):11-15.30,,,.[J].,2010,34(2):10-14.31,,,.[J].,2009,13(2):51-55.32,,.／[J].,2013,32(1):22-29.33,.[J].,2012,38(S2):30-32.4--