高密度泥浆法处理铅锌冶炼综合废水

614200911NonferrousMetalsVol161,No14November.20091,2,2(11,100083;21,100044):(HDS),pH1010PAM3mg/L30min25min10201,Al2(SO4)30166g/L,(DB44/26-2001)0145/t,10%15%,50%,:;(HDS);;:X758:A:1001-0211(2009)04-0166-04,,,Pb,As,Hg,Cd,,,,,,,,[1-6],(HDS),,,1111()(DB44/26-2001),11Table1RawwaterqualityanddischargewaterindexespH/(mgL-1)SSPbZnCdAsHgF693060335103801551501020140102501112101569701102100105015010510:2009-08-05:(2006BAB04B06):(1965-),,,,,112HDS1,1,(5L)2(20L)1(4L)1(35L)1l113,Pb,Zn,Cd,As,Hg,F,SS,2211HDS1HDSFig11HDSexperimentprocessHDS,1000mL/min,pH11,HDS,22,HDSPb,Zn,Hg,As,F,pH=11,,Cd,HDS,Cd,,HDS212pH1000mL/min,pH12,1115,11,1015,1010,915,910815,HDSpH,32HDSTable2RemovaleffectcomparisonbetweenHDSandlimeneutralizationmethod1pHpH/(mgL-1)PbZnCdAsHgF1016710176010752100017501201000512HDS111001110301056011801003601201000112163,pH910,Cd,pH815,CdpH(111512),Cd,Pb(pHPb),pH1010(F)3pHTable3EffectofpHonleadandzincsmeltingcomprehensivewastewatertreatment/(mLmin-1)1pHpH/(mgL-1)PbZnCdAsHgF1701211121111060102010070120100021314210011151116018601520100201201001512163701019111001240152010020120100091410462101510150103011001002012010008131757591909185010301048010020120100041416680915591550103011101006012010009131779091391001030107701027012010001510198808163816001030121010530120100041019213,1500PAMpH10101000mL/min,HDS,PAM(011%)2mg/L4mg/L,44,PAM3mg/L,,(F)7614:4Table4EffectofflocculantsaddingonleadandzincsmeltingcomprehensivewastewatertreatmentPAM/(mgL-1)/(mgL-1)PbZnCdAsHgF121001030105010201201000031316231001030104010201201000313133410011201120101501210100031413214pH1010,PAM3mg/L,80mL/min37,30,27,2420min,30,25,21,1917min55,,(F),19min,30min,25min5Table5Effectofreactiontimeandsedimentationtimeonleadandzincsmeltingcomprehensivewastewatertreatment/min/min/(mgL-1)PbZnCdAsHgF13730011501110101701201000313132302501059011101010100801413103272101180108101012-010003121442419012101086010101014010004131352017011201140101010310100041214215,,,,,,20%30%,10201216F10mg/L,,,Al2(SO4)3(5%)HDS1200mL/min,pH1010,Al2(SO4)3,66,pH1010,Al2(SO4)3(0166g/L)F,Cd,Al2(SO4)3,CdF,Al2(SO4)3,pH,Cd,Al2(SO4)3,,Al2(SO4)30166g/L,HDS,0145/t(0135/t,0110/t),6Table6Effectofdefluorinatingagentaddingonleadandzincsmeltingcomprehensivewastewatertreatment/(mLmin-1)/(mgL-1)PbZnCdAsHgF12401130117010540102801000708107216010801050102801062010003810138010801190106301050010021019861613(1)HDS,HDS,(DB44/26-2001)(2)pH,:pH1010PAM3mg/L30min25min20%30%,10201Al2(SO4)30166g/L(3)HDS,0145/t(0135/t,0110/t),(4)HDS,:[1],,,1[J]1,2005,57(4):97-1001[2],,,1[J]1,2005,21(5):24-271[3]1[J]1(),2008,(6):28-321[4],,,1[J]1,2005,14(4):71-741[5]PepeHerreraS,HiroyukiUchiyama,ToshifumiIgarashi,etal1Acidminedrainagetreatmentthroughatwo2stepneutralizationferrite2formationprocessinnorthernJapan:Physicalandchemicalcharacterizationofthesludge[J]1MineralsEngineering,2007,20(10):1309-13141[6]MatlocMMk,HowertonBS,AtwoodDA1Chemicalprecipitationofheavymetalsfromacidminedrainage[J]1WaterResearch,2002,36(12):4757-47641TreatmentofComprehensiveWasteWaterfromLeadandZincSmeltingwithHighDensitySludgeYANGXiao2song1,2,LIUFeng2biao2(11SchoolofChemicalandEnvironmentEngineering,CUMT,Beijing100083,China;21BeijingGeneralResearchInstituteofMining&Metallurgy,Beijing100044,China)AbstractThetechnologyandopticaltechnicalparametersofleadandzincsmeltingcomprehensivewastewatertreatmentwithhighdensitysludge(HDS)methodareinvestigated1TheresultsshowthatunderoptimalconditionofpH=10,PAMdosage3mg/L,reactiontime30min,sedimentationtime25min,sludgerefluxratio1020:1andAl2(SO4)3dosage0166g/L,theeffluentqualitymeetsthefirstclassrequirementsofDB44/26220011Operatingcostis0145/m3thatare10%15%lowerthanthatthelimeneutralizationmethod1ThetreatmentcapacitiesofHDSprocessarehigherthanthatlimeneutralizationmethodby50%,andHDSprocessisaverygoodalternativetechnologyforlimeneutralizationmethod1Keywords:environmentengineering;highdensitysludge(HDS)method;leadandzincsmelting;comprehensivewastewater9614: