啤酒酵母对镉离子的吸附特性及机理研究

:(1977-),,,,,(,341000):,,Langmuir:Cd2+,Cd2+:;;;:X703:A:1003-5540(2007)02-0051-04,,,,(,),2080,,,:;,;;;pH;,;[15][610],[11]:Cd2+;pHCd2+,pH48;,Cd2+,;10mg/LCd2+,:15min,pH518,6g/L,25;Cd2+,,,,,1111,,(100mg/L)GB7471-87,112,,(:15min,pH518,6g/L,25),,1523220074HUNANNONFERROUSMETALS2211,,:,,Cd2+115minpH5186g/L25,Cd2+1Cd2+Cd2+Ci/mgL-110255075Cd2+Cf/mgL-1316091111819428172q/mgCd2+g-101640115893110641628/%646315662112611711,,Cd2+,,,60%,,1Cd2+11,,,Langmuir,Cfq,+01983:15minpH5186g/L25,q=0118Cf1+4146+10-3Cf,:=+01983q,Cf,qCf,1qCf,,Lang2muirCd2+21221211,90%,(),,,2Cd2+10mg/L,6g/L,pH518,25,22:Cd2+,,,10min;Cd2+,,,,,[12],,,Cd2+2121222,,2523,3Cd2+10mg/L,6g/L,15min,25,2[13]/%/mgg-157K204550Ca018115Fe0127P1219011530353mg/LCd2+103187Ca2+01103K+08163pH41785181:pH3,,,pH,H+Cd2+K+Ca2+,[7,9,10,14],,K+Ca2+,Cd2+K+Ca2+,Cd2+,[610]3,:11Cd2+,,,60%,,;Langmuir,:Cf,LangmuirCd2+21Cd2+,,,10min;Cd2+31Cd2+,K+Ca2+,Cd2+:[1]Volesky,B1Biosorptionforthenextcentury[C]1ibid,1999,161-1701[2]Volesky,B1Biosorptionofheavymetal[M]1Canada:CRCpress,19901[3],,1[J]1,2001,20(2):12-171[4],1[J]1,2006,26(1):69-761[5]F11[J]1,1998,12:27-351[6]Yang,J,Volesky,B1BiosorptionandElutionofUraniumwithSea2weedBiomass[C]1ibid,1999,483-4921[7]Kratochvil,D1;Pimentel,P1F1;Volesky,B1Removaloftrivalentchromiumbyseaweedbiosorbent[J]1DepartmentofChemicalEn2gineering1Environ1Sci1Technol,1998,32:2693-26981[8]ZmriyeAksu;DursunÊzer;AylaÊzer1Investigationofthecolumnperformanceofcadmium()biosorptionbycladophoracrispataflocsinapackedBed[J]1SeparationScienceandTechnology,1998,33(5):667-6821[9]A1Lodi;C1Solisio;A1Converti;M1DelBorghi1Cadmium,Zinc,Copper,SilverandChromium()rmovalfromwastewatersbySphaerotilusnatans[J]1BioprocessEngineering,1998,19:197-2031[10]Chin-pinHuang;Chin-paoHuang;AllenL1Morehart1TheRe2movalofCu()fromdiluteaqueoussolutionbysaccharomycescerevisiae[J]1WaterResearch,1988,433-4391[11],1[J]1,2004,26(2):95-971[12]B1volesky,I1Prasetyo1Cadmiumremovalinabiosorptioncolumn[J]1BiotechnologyBioengineering,1994,43(11):1010-10151[13],,,1[M]1:,20011[14]AntonioCarlosA,DACostaFranciscaP,DEFranca1Cadmiumup2takebybiosorbentseaweed:adsorptionisothermsandsomeprocessconditions[J]1SepartionScienceandTechnology,1996,31(17):2373-23931:2007-03-15352,:TraitandStudyofMechanismonCadmiumBiosorptionbySaccharomycesCerevisiaeCHENGXian2xiong,ZHOUDan,QIUTing2sheng(JiangxiUniversityofScienceandTechnology,Ganzhou341000,China)Abstract:Inthispaper,biosorptionofcadmiumbySaccharomycescerevisiaewasstudied1Thetraitofbiosorptionwasdescribedbyisotherm,andbiosorptionwasappraisedbytheLangmuirmodel1Inaddition,mechanismofbiosorptionwasdiscussed,whichshowedthatbiosorptionoccurredincellwallmainlyandbiosorptionhadrelationtoionchangepossibly1Keywords:Saccharomycescerevisiae;Cadmiumcation;adsorptionbehavior;mechanismofbiosorption(22)3Cu(NO3)2-HNO3,,,H2SO4,AgCu:1530g/L;4060g/L;Cl-011018g/L;325A/m2;Pb2+10g/L:[1]1[M]1:,19881[2]1[J]1,1994,23(3):11-141[3],1[J]1(),1997,(5):6-91[4],,1[J]1,1996,17(11):33-361:2007-03-10RecoveryofCopperandSilverfromtheCrudeCopperwithHighContentSilverbyElectrolysisProcessFANXiang1,YUZhi2shan1,XIONGAi2chen2(11HechiChemicalFactory,GangxiHuaxiGroupCorp1,Hechi547000,China;21LiuzhouHuaxiIndiumMaterialsCorp1Ltd1,Liuzhou545006,China)Abstract:ThecrudeCopperwithhighcontentSilverrecoveredfromtheconcentrateofAntimony-LeadSulfidehastosellatlowerprice1ItcanbringremarkableeconomicbenefitsifCopperandSilvercanbeseparatelyrecov2eredbyelectrolysisprocess1Inthisresearch,westudiedtheinfluenceofelectrolysisintheelectrolyteofCu(NO3)2andHNO31Finally,thepreferredconditionswerechosenandtheaimofproducingcathodeCopperandconcentrat2ingSilverandothervaluablemetalswasreached1TheconcentrateoftheproductCopperreached99103%99121%,Silver,Leadandothervaluablemetalsweregatheredintheanodemud,inwhichthecontentofAgis9158%13142%,Pb8124%9113%,Bi17134%20167%,Sb9119%10164%,Cu15117%21136%1TheresultsshowedthattheprocesscouldpurifyCopperandrecoverSilverandothervaluablemetals1Keywords:crudeCopperwithhighcontentSilver;electrolysissmelting;currentdensity;recovery4523