化学沉淀法处理含重金属废水的研究进展.pdf 全文免费在线阅读

  本文关键词：化学沉淀法处理含重金属废水的研究进展，由笔耕文化传播整理发布。

网友精选文库近日为您收集整理了关于化学沉淀法处理含重金属废水的研究进展的文档，希望对您的工作和学习有所帮助。以下是文档介绍：,,,,,(,361101)[],、、、,。,3、。[];;[]X703.1[]A[]1005-829X(2011)12-0009-05ResearchdevelopmentoftreatingwastewatercontainingheavymetalsbychemicalprecipitationprocessGuoYanni,FangZengkun,HuJiehua,XieHongzhen,LiLiting,YeZhiyong(XiamenZijinMining&MetallurgyTechnologyCo.,Ltd.,Xiamen361101,China)Abstract:Chemicalprecipitationprocessisatraditionalwatertreatmentprocess,havingmanyadvantages,suchasmaturetechnology,littleinvestment,lowcost,highlyautomaticlevel,etc.andhasbeenappliedextensivelyintheworld.Theresear(来源：[])chdevelopmentofthetreatmentofwastewatercontainingheavymetalsandexpoundstheadvantagesanddisadvantagesofthreekindsofchemicalprecipitationprocesses,theeffectsofinfluencingfactorsonheavymetalremovingrates,andtheresearchdirectionsinthefutureareintroducedmainly.Keywords:chemicalprecipitationprocess;wastewatercontainingheavymetals;wastewatertreatment、。,。,、、、、。,。,,、。11.1,,。、、、、、,,:(1),。(2),。(3)pH10~11,,pH6~9,。(4),。1.2,pH、、。pH。,。pH,,pH,。〔1〕,pH。pH0.495.72,Cu(来源：[])2+042.4%,Cu2+373.0mg/L215.0mg/L;pH8.10,Cu2+3112201112IndustrialWaterTreatmentVol.31No.12Dec.,2011999.7%,Cu2+1mg/L;pH12.05,Cu2+,99.6%,Cu2+1.32mg/L;pH13.53,Cu2+67.7%,Cu2+120.6mg/L。〔2〕、,,pH2.178.50,Cu2+15.48mg/L0.39mg/L,Zn2+107.8mg/L3.2mg/L;pH1.829.38,Cu2+24.6mg/L0.1mg/L,Zn2+10.4mg/L;pH2.0610.65,Cu2+22.7mg/L0.13mg/L,Zn2+112.0mg/L3.18mg/L。,pH。,。,:NaOH、CaCO3、Ca(OH)2、CaO。,NaOH,、、,。,,CaCO3、Ca(OH)2CaO。Ca(OH)2,Cu2+410mg/L0.5mg/L。,。,,〔3〕。〔4〕,pH9~12,,,PAM、,。1(来源：[]).3,,,、、、。、。,〔5〕。、、、。。、、,,。,:,,。:(1)。,HDS、。HDS、、、。(2),、,,、。(3)。,,。(4)。〔6〕、、,94%、96%、95%、90%。22.1,。、、、。。pH,,。pHpH,。pH。pH。,:(1),,;(2)。(3),,。(4),,。:(1),,;(2),2011-12,31(12)10。,。2.2:、、。Na2S、NaHS、H2S。〔7〕Na2SCu2+120mg/L,Cu2+<0.5mg/L。〔8〕Na2S,,(GB8978—1996)。NaHS,Cu2+410mg/L0.3mg/L。,。Na2S,;Na2S,,S2-、HS-,S2-MS22-、MS32-、MS42-,。〔9〕,,Na2S2.5mL/L,Cu2+18.55mg/L,18.55%;Na2S4.5mL/L,Cu2+0.329mg/L,19.76%;Na2S6.5mL/L,Cu2+0.319mg/L,0.319%。,,,。〔10〕、,,,,,,。,,,。〔11〕,1875mg(来源：[])/L、92.56mg/L、pH2.46,pH2.46~6.5,;pH6.5~9.5,,CuS。,99.46%,28.5%。〔12〕CaCO3、H2S、,、,Pb0.42mg/L,Zn0.031mg/L,32%,7.2%,、。2.3,。,,,,。。,,。,,,。〔13〕,,、、、、、,、。,。33.1,。1973(NEC)〔14〕,,,、,,〔15〕。。Fe2+,。Fe2+,(pH)()Fe2+。,,、、,。,。,。2011-12,31(12),:11,,。、Hg〔16〕。3.2、、pH、。Fe2+Fe3+。,,,,FeCl2FeSO4,,Fe2+Fe3+,m(Fe2+)∶m(Fe3+)=1∶2〔17〕。,FeSO4Cr6+,Fe2+。〔18〕,CrO316,Cr6+<0.05mg/L。。,,,,。〔19〕—、、,,、。〔20〕,《》(GB8978—1996)。,,,pH,,pH。pH,pH,。〔19〕—、、,,pH<8.8pH;pH8.8~9.2,;pH>9.2,pH。3.3,、、、、。,((来源：[])GT)-、-、-(HGMS)、-、-、-。,,〔21-23〕。,〔21〕。。,〔24〕。,,,,,。4,、、、,。,,,。,,,,。[][1],.pH[J].,2008,14(1):8-10.[2].、pH[J].,1995(4):30-31.[3],,.[J].,1998,24(3):1-3.[4],,.-[J].,2010,33(3):323-326.[5].[J].,2003,23(6):109-110.[6].-、:CN,1718784[P].2006-01-11.[7],.[J].,2007,27(8):70-73.[8],.[J].,1997,7(4):29-31.[9],,.[J].,2007(7):80-82.[10],,.2011-12,31(12)12,(,361021)[]、。。,、,,。[];;[]Q939.9[]A[]1005-829

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  本文关键词：化学沉淀法处理含重金属废水的研究进展，由笔耕文化传播整理发布。