CU2重金属离子捕集剂去除废水中Cu2的研究郑怀礼

25　32006　　5　　　ENVIRONMENTALCHEMISTRYVol.25,No.3May　　2006　＊(CSTC-2006BA)(20577072).　＊＊,Tel:[phone];E-mail:[e-mail]2#Cu2+＊郑怀礼1,2＊＊　陈春艳1　孙秀萍1　刘　宏1　彭德军1(1,,400044;2,400045)　　CU2#,:pH1—14,5min,,CU2#,0.3mg·l-1,99.7%,.,CU2#EDTA.　,,.　　、、、、[1—6].,:、、[7],,EDTA、,.　　CU2#:NRRCSSM2+SSCNRR,,.　　CU2#,EDTA.1　　　Cu2+EDTACu2+,500ml500ml,CU2#,,,,GB7474-1987Cu2+.2　CU2#Na2SCu2+　　()Na2S,,,2h,.Na2SH2S,pH,pH,.,4.2mg·l-1.　　CU2#,,2h,.,pH1—14,CU2#.,0.2mg·l-1,.3　　　CU2#,.5min,,.1,　3:CU2#Cu2+371　　5min,,,,5min.4　　　100mg·l-1,CU2#,(CPAM,),(APAM,)(PAM,),2.,,,.1.5ml,..CU2#,,Cu2+99.8%,2h,,.1　Cu2+(C0=100mg·l-1)Table1　InfluenceofstirringtimeonremovalrateofCu2+/min2510152025/mg·l-10.220.200.260.280.240.23/%99.7899.8099.7499.7299.7699.772　Cu2+Table2　InfluenceofdifferentflocculantsandadditionamountonremovalrateofCu2+0.3‰CPAM/ml0.000.501.001.50CU2#CPAM/mg·l-10.200.210.200.231‰APAM/ml0.000.501.001.50CU2#APAM/mg·l-10.200.190.230.211‰PAM/ml0.000.501.001.50CU2#PAM/mg·l-10.200.220.230.205　EDTA　　EDTA,pH1—14,CU2#,、.,5min,,2h.Cu2+0.5mg·l-1,.　　,CU2#,pH1—14,5min,99.8%.,,,,.　　、、,.　　　[1]　,,,[J].,1999,20(1)∶65—67[2]　ShuchiTiwari,AnjaliBajpai,MetalIionExtractionbyDithiocarbamateFunctionSupportedonPolyacrylamide[J].ReactiveFunc-tionalPolymers,2005,64∶47—54[3]　LucaRonconia,ChiaraMaccatoa,DavideBarrecabetal.,Gold(III)DithiocarbamateDerivativesofN-methylglycine:AnExperimentalandTheoreticalInvestigation[J].Polyhedron,2005,24∶521—531[4]　JiangJianguo,StudyontheMechanismofPolymerChelatingAgentCapTuringHeavyMetalLead[J].EnvironmentalScienc,1997,18(2)∶31—33372　　　　　　　　25[5]　,,[J].,2005,25(2)∶180—185[6]　,,,、[J].,1999,18(3)∶244—248[7]　,[J].,1995,(4)∶16—18STUDIESONTHEREMOVINGOFCu2+INWASTEWATERWITHHEAVYMETALCHELATINGAGENTCU2#ZHENGHuai-li1,2　　CHENChun-yan1　　SUNXiu-ping1　　LIUHong1　PENGDe-jun1(1CollegeofChemistryandChemicalEngineering,ChongqingUniversity,Chongqing,400044,China;2KeyLaboratoryoftheThreeDorgesReservoirRegion'sEco-Environment,MinistryofEducation,ChongqingUniversity,Chongqing,400045,China)ABSTRACT　　ThetreatmenteffectsofheavymetalchelatingagentCU2#onCu2+inthewastewaterwerestudiedinthepaper.Undertheoptimumconditions(therangeofpHvalueis1—14,stirringtimeis5minutes,nofloccu-lentisadded),thedosageofCu2+treatedbyheavymetalchelatingagentCU2#wasnotmorethan0.3mg·l-1,99.7%Cu2+wasremovedforwastewater,whichmeetthegovernmentcriterion.ThetreatmenteffectofheavymetalchelatingagentCU2#onCu2+chelatedbycalciumcomplexdisodiumsaltinthewastewaterandchelatingmechanicsofheavymetalchelatingagentCU2#onCu2+werealsostudied.　　Keywords:heavymetalchelatingagent,copper,wastewater.《》200611　　、,、,《》().,、,,.,;.　　《》,、,([e-mail])..　　、.《》