含铬电镀废水的处理技术及其发展趋势曾君丽

185201110JOURNALOFDONGGUANUNIVERSITYOFTECHNOLOGYVol．18No．5Oct．20112011－07－082008108101016。1986—、。12211．5100062．523808。、、、、、。X781.1X703.1A1009－0312201105－0089－06、、、、、、、。、140m31。1277244740m3/dCr6+0.580kg/d2。123“、、、”453。Cr3+Cr6+Cr3+、、。Cr6+Cr3+100、、3。Cr6+1.0mg/L0.2mg/L4。“”。。11.1、、。、、3。pH2～4Cr6+Cr3+pH8～9。5FeSO4·7H2OCr6+68.18mg/LpH4.01.09g2minCr6+。、。62.7%2.4%1.5g1150℃100mLCr6+40.1DOI:10.16002/j.cnki.10090312.2011.05.008902011mg/L10minCr6+3.5mg/LCr6+90%。SO2pH3～4Cr3+。SO2Cr6+。BaCO3H2CrO4BaCO3Ksp=8.9×10－9BaCO4Ksp=2.3×10－10BaCO3+H2CrO→4BaCrO4↓+CO2↑+H21BaCO350～100mg/L。CaSO4·2H2OBaSO4Ksp=1.1×10－10BaCO3+CaSO→4BaSO4↓+CaSO32Cr6+Ba2+。、。FeSO4Cr6+Fe2+Fe3+Cr6+Cr3+pH8～9CrOH370℃±10℃。、、、。。7。。、。1.2Fe2+Cr6+Cr3+。H+pHCr3+Cr3+pH7～10OH－CrOH3pH8。3。9++Cr6+99.6%《》GB8978－1996。10pH1～235～40minCr6+99%。、。。Fe2+Fe2+Fe3+FeOH3CrOH3。1.3。。、、11。CrO2－4Cr2O2－7Cr6+Cr3+12。13201×7Cr6+Cr6+1540mg/L52BVCr6+0.5mg/L。80mg/g。8%NaOH50℃95%。、、、591。1.41.4.1。14。100。。15。16CP/EDFeSO4∶Cr6+=12∶1Na2S∶Cr6+=5∶1。＜5mg/L90%。Cr6+0.2mg/L。。17EDCr6+。Cr6+50～150mg/L0.5mg/LCr6+10g/L4.84%～11.45%2.24～6.97kWh/molCr6+。。。1.4.2。2070。、、。18GB/T1992－2005《》、95%、90%95%150μS/cm。。、、、18。1.5。。。RajenderKumar19pH20.6g/50mLCr6+91.03%0.8g/50mLCr6+87.95%86.61%。JinshaoYe20－Cr6+10～50mg/LpH1～5。－。ParindaSuk-sabye21Cr6+1647mg/L。pH2＜75μm2%w/v60℃18hCr6+99.99%。、、。。9220111.6、、、、22。M.Pazouki23Cr6+pH5.566mgCr6+Cr6+50mg/L96.4%。。ZhongjianLi24Cr6+204mg/L。pH2Cr6+99.5%66.2%1600mW/m212%。。。。1。1、。。。。。。。。。、。。。。。。2“”、。、。1。。。25。2。。、、。Cr6+Cr6+。593。3。、、。、、。—、。、。。、。、、、、。、。1Wing．Removalofheavymetalionsfromaqueoussolutionswithinsolublecrosslinked-starc-xanthatesP．USP40513l6l977．2．、R．2009．3．M．2006．4GB21900－2008．《》S．5．D．2007．6．J．200216416－17．7．J．200827570－73．8．J．200448－10．9．J．20082101349－1353．10．J．2006139－40．11．J．2005328－29．12．J．200427111－113．13．CrⅥJ．200736122－24．14YangXJFaneAGMacNaughtonS．RemovalandrecoveryofheavymetalfromwastewatersbysupportedliquidmembranesJ．WaterSci-enceandTechnology200143341－48．15MarderLBemardesAMFerreiraJZ．Cadmiumelectroplatingwastewatertreatmentusingalaboratory-scaleelectrodialysissystemJ．Sepa-rationandPurlficationTechnology200407247－255．16．J．200624529－53217．D．2010．18．-J．2008524－27．19RajenderKumarNarsiRBishnoiGarimaetal．BiosorptionofchromiumVIfromaqueoussolutionandelectroplatingwastewaterusingfungalbiomassJ．ChemicalEngineeringJournal2008135202－208．20JinshaoYeHuaYinBixianMaietal．BiosorptionofchromiumfromaqueoussolutionandelectroplatingwastewaterusingmixtureofCandi-dalipolyticaanddewateredsewagesludgeJ．BioresourceTechnology20101013893－3902．21ParindaSuksabyePaitipThiravetyanWorananNakbanpoteetal．ChromiumremovalfromelectroplatingwastewaterbycoirpithJ．JournalofHazardousMaterials2007141637－644．22．J．199723625－29．23PazoukiMKeyanpour－RadMShafieShetal．EfficiencyofPenicilliumchrysogenumPTCC5037inreducinglowconcentrationofchromi-umhexavalentinachromiumelectroplatingplantwastewaterJ．BioresourceTechnology2007982116－2122．24ZhongjianLiXingwangZhangLechengLei．ElectricityproductionduringthetreatmentofrealelectroplatingwastewatercontainingCr6+u-singmicrobialfuelcellJ．ProcessBiochemistry2008431352－1358．25．J．200224235－37．1135113ReformationandPracticeofPracticeEducationSystemforEnvironmentalEngineeringSpecialtyLANShan-hongFANHong-boWUXiu-wenCollegeofChemistryandEnvironmentalEngineeringDongguanUniversityofTechnologyDongguan523808ChinaAbstractAshighlyqualifiedpersonnelspecializedinenvironmentalscienceandengineeringareinincreasepracticeteach-inghasbecomeparticularlyimportantintheprocessoftrainingversatilepersonnel．AccordingtotheproblemsanddeficienciesofpracticeteachingbasedonthepresentpracticaleducationsystemsoftheenvironmentalengineeringspecialtyofDongguanUniversi-tyofTechnologythenewpracticeeducationsystemthatconsistsofthreebasicmoduleshasbeenputforwardincludingpublicpracticeteachingplatformspecialtypracticeteachingplatformandcomprehensivepracticeteachingplatform．Theresultsshowtheoptimizationandreconstructionofpracticeteachingsystemcanimprovestudents’capabilityintheengineeringpracticeandinnova-tion．Keywordsenvironmentalengineeringpracticaleducation檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵檵reformation93TheTechnologyandItsDevelopmentofElectroplatingWastewaterContainingHexavalentChromiumZENGJun-li12SHAOYou-yuan2YIXiao-yun11．SchoolofEnvironmentalScienceandEngineeringSouthChinaUniversityofTechnologyGuangzhou510006China2．CollegeofChemistryandEnvironmentalEngineeringDongguanUniversityofTechnologyDongguan523808ChinaAbstractTheharmofelectroplatingwastewatercontainingCr6+wasintroduced．Severalkindofcommontreatmentsinthedo-mesticandforeignwereanalyzedincludingchemicalmethodelectrolyticprocession-exchangemethodelectrodialysisreverseosmosisabsorptionandbiotechnology．Theiradvantagesanddisadvantageswerediscussed．TheelectrodialysisandthebiotechnologywereillustratedwithemphasisandthedevelopmenttrendofthetechnologyofelectroplatingwastewatercontainingCr6+waspros-pected．KeywordselectroplatingwastewaterHexavalentChromiumtechnologyelectrodialysisbiotechnology