Removaloflead,cadmium,iron,andmanganesefromminewaterbypotassiumferratecoagulationHeWenli1,GuiHerong1,2,YuanZhihua1,WuBin1,HeCan1(1.SchoolofEarthandEnvironment,AnhuiUniversityofScienceandTechnology,Huainan232001,China;2.DepartmentofGeographyandEnvironmentalScience,SuzhouCollege,Suzhou234000,China)、、、1,1,2,1,1,1(1.,232001;2.,234000)[]、、、。,30mg/L,、、、55%、28%、93%、54%;、、、pH,pH8~10、、、,95%、61%、97%92%。,。[];;;;;;[]X703.1;TU991.22[]A[]1005-829X(2009)10-0083-04Abstract:Beakertestshavebeenconductedtoinvestigatetheremovalefficienciesoflead,cadmium,iron,manganesefromminewaterbypotassiumferrate.Theresultsshowthatwhentheconcentrationofpotassiumferrateis30mg/L,thecoagulationandsedimentationoflead,cadmium,iron,andmanganesecanrespectivelyreach55%,28%,93%and54%.Theremovalratesoflead,cadmium,iron,andmanganeseincreasewiththeincreaseofpH.WhenthepHoftreatedwaterisintherangeof8-10,theremovaleffectsonlead,cadmium,ironandmanganesearebetter,reaching95%,61%,97%and92%,respectively.Then,theheavymetalcontentofthetreatedminewatercanmeettherequirementsofnationaldrinkingwaterstandard,providingminewaterwithaverygoodapplicableprospect.Keywords:potassiumferrate;heavymetal;lead;cadmium;iron;manganese;minewater[](070414168);(KJ2007A070),,,、、〔1〕。、、、、、〔2〕。,〔3〕,,,。(K2FeO4),FeO42-。FeO42-〔4〕,2.20V0.72V,O3(E0=2.076V),;,FeO42-,Fe()Fe(OH)3〔2〕,K2FeO4。,pH,Pb、Cd、FeMn,2910200910IndustrialWaterTreatmentVol.29No.10Oct.,200983——2009-10,29(10)。11.1、:JJ-4,;TAS-986,;Cu、Zn、Fe、Mn,;PHB-4pH,;WZS-180/185;HH-8;;。:,,〔5〕,95%;HCl、HNO3、HClO4,NaOH、CrCl3·6H2O、H2SO4、Na2CO3。:《》;、《》(GB/T7475—1987);、《》(GB/T11911—1989)〔6〕。:,,。1.2,,:,24h,,200mL,,300r/min10min,60r/min10min,1h,。:24h,,《》〔7〕。1.324h,1。1,,Pb、CdFe(GB5749—2006)。22.1、、、、、、1。1,,,62%,6.8μg/L,(10μg/L)。,20mg/L36%,,60μg/L49%,3.1μg/L,(5μg/L)。,10mg/L87%,,93%,189μg/L,(300μg/L)。30mg/L,,。2.2、、、2.2.1,0.03mg/L,;10μg,2~4〔7-8〕。,,2。2,,pH,pH8~10,30mg/LPb80%。,Pb2+1pH/NTUPb/(mg·L-1)Cd/(mg·L-1)Fe/(mg·L-1)Mn/(mg·L-1)8.3710.680.0180.00612.63040.0629——0.94162.38266.52454.95996.5~8.530.010.0050.30.1:,GB5749—2006。1、、、84——2009-10,29(10),,K2FeO4———Fe3+,;,Pb2+PbO2K2FeO4Fe(ΟH)3,pH。2.2.2,、,(→→→),,3。3,pH8Cd2+,pH8~10CdOH+,Cd(OH)3-Cd(OH)2。,pH,pH10。,,,100mg/L61%。2.2.3、,,、,4。4,pH8,pHFe,pH=10,50mg/L,Fe;pHMn,91%。(2.20V),、;,,,,、,,,,、。pH、、、pH,。pH,,,。Fe()Fe(OH)3、,〔5〕。3(1):,,:、、、85——30mg/L,、、、55%、28%、93%54%,,、、、,。(2):、、、pH,pH8~10、、、。[][1]AleyaBM,NurulA.Selectedelementalcompositionofthemuscletissueofthreespeciesoffish,Tilapianilotica,CirrhinamrigalaandClariusbatrachus,fromthefreshwaterDhanmondiLakeinBangladesh[J].FoodChemistry,2005,93(3):439-443.[2].[J].,2008,26(2):22-25.[3],.[J].:,2000,23():927-933.[4]MumanannRK,RobinsonPR.ExperimentsutilizingFeO42-forpurifyingwater[J].Waters,1974,8(1):543-547.[5],.[J].:,2001,19(1):106-108.[6].[M].4.:,2002:12.[7]CanfieldRL,HendersonCRJ,Cory-SlechtaDA,etal.Intel-lectualimpairmentinchildrenwithbloodleadconcentrationsbe-low10μgperdeciliter[J].TheNewEnglandJournalofMedicine,2003,348:1517-1526.[8].[D].:,2005.[](1983—),2006,。:13505546333,E-mail:hewenli092800@126.com。[]2009-04-22()[],,pH4~6,0.2mg/L,2mg/L。,,,。[];;[]X703.1[]A[]1005-829X(2009)10-0086-03225127Abstract:Treatingcycanide-containingwastewaterbyferroussulfatemethodhasbeenstudied.Atfirst,thecon-centrationsoffreecyanideandtotalcyanidearedetermined,respectively.TheresultsshowthatwhenpHisbe-tween4to6,thecyanide-containingconcentrationofferrouscyanideinthetreatedwastewaterislessthan0.2mg/L,andthetotalcyanideconcentrationis2mg/L.Usingferroussulfatefortreatingcyanide-containingwastewa-tercannotreachthedischargestandard,becausefreecyanideistoohigh.Buttheferrouscyanideformedisverystable.Addingsomeoxidantbeforefiltrationcantheoreticallyreachthedischargestandardbyonestep.Keywords:complexprecipitation;cyanide-containingwastewater;freecyanideTreatmentofhighlyconcentratedcyanide-containingwastewaterbyferroussulfatemethodChenHuajin(DepartmentofChemicalEngineering,YangzhouPolytechnicInstitute,Yangzhou225127,China),、,。、,。2910200910IndustrialWaterTreatmentVol.29No.10Oct.,2009!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!86——