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当前位置:首页 > 行业资料 > 冶金工业 > 含铝废渣制备聚硅酸铝铁絮凝剂处理造纸废水
,,,(,330031):(PAFSC)。:20min,80℃,6mol/L,3∶1。95%。,。400mg/L,COD、68%、92%。(PAC)。:;;;;:TQ133.1:A:1006-4990(2016)03-0063-03PreparationofflocculantPAFSCbyaluminiumwasteslagandapplicationinpulpingwastewatertreatmentLiuXiaohong,XunKaibing,YangFangqi,QiuShunguo(SchoolofResources,Environmental&ChemicalEngineering,NanchangUniversity,Nanchang330031,China)Abstract:FlocculantPAFSCwaspreparedbyaluminiumalloywasteslagasrawmaterial.Throughthesinglefactorexperi-ment,theoptimumconditionstoleachingaluminiumwasteslaginhydrochloricacidwereasfollows:reactiontimewas20min,reactiontemperaturewas80℃,hydrochloricacidconcentrationwas6mol/L,andamount-of-substanceration(HCl)∶n(Al)=3∶1.Theleachingrateofaluminiumwasmorethan95%undertheseconditions.ByleachingaluminiumwasteslagtogetthealuminiumchloridesolutiontoproducethePAFSCandPAFSCwasappliedinpulpingwastewatertreatment.Using400mg/LofthePAFSCtodealwiththepulpingwastewater,theCODremovalrateanddecolorizationrateofpulpingwastewatercouldreach68%and92%respectively.TheeffectofPAFSCwasbetterthanthatofPAC(polyaluminiumchloride).Keywords:aluminiumwasteslag;leaching;flocculantPAFSC;treatment;pulpingwastewater,Al3+Fe3+,[1]。,。[2],,。[3]、,。[4]、,。[5]。[6],Fe3+Al3+,。[7],。,,,COD(PAC)。。11.1、:(LD3),():Al,88.07%;Si,0.2%~0.6%;Mg,0.39%~0.45%;Cu,≤0.1%;Fe,≤0.35%;Mn,≤0.1%;Zn,≤0.1%;Cr,≤0.1%;Ti,≤0.1%;。:、、、、、,。:HH;JJ-1;85-2;GZX-9140;PHS-3EpH;TU1901;Spectrum2000FTIR。1.2:Al(s)+3HCl(l)=AlCl3(l)+3/2H2(g)↑Mg(s)+2HCl(l)=MgCl2(l)+H2(g)↑Cu(s)+2HCl(l)=CuCl2(l)+H2(g)↑80%1.70mm。,1.70mm150μm48320163INORGANICCHEMICALSINDUSTRYINORGANICCHEMICALSINDUSTRYVol.48No.3Mar.,2016,,。,,,,,,。1.3PAFSC0.8mol/L,0.8mol/LFeCl3,NaOH。1h2h,。,。1.4PAFSC100mL100pH5.5250mL,,30℃,1min,2min,,30min,COD。1.5EDTA;EDTA;=/;;COD。22.1,,。、、、。1)。:60℃,3∶1,HCl4mol/L。Al,1。--,、。1,10minAl85.61%;Al,20minAl89.32%,;20minAl,Al3+,Al。20min。2)。:3∶1,20min,HCl4mol/L。,2。2,,Al。80℃Al92.66%,。,,,,。80~90℃。123)。:3∶1,80℃,20min。,3。。3,AlHCl。,HCl,Al,、Al;HCl,Al,6mol/L,Al,94.23%。HCl,Al。HCl,,,,;,,,。HCl,。,HCl6mol/L。4)。,。:80℃,20min,6mol/L。,4。(3∶1)0.8、0.9、1.0、1.1、1.2。4,Al。,,HClAl,Al。1.0,Al94.25%;1.1,Al,95.05%。。1.0,n(HCl)∶n(Al)=3∶1。48364342.2PAFSC5PAFSC。5,3446cm-1,PAFSC、;1634cm-1;1100~975cm-1,Si—O—FeSi—O—Al,;591cm-1Fe—O、Al—O。,Fe—O、Al—OSi—O—FeSi—O—Al,。5PAFSC2.3PAFSC。,COD150000mg/L,pH=9.0~10.0。100COD1532mg/L,pH=9.12。NaOHpH(pH)5.5。PAFSCPAC,6。6,0.5g/L,PAFSCPAC;0.5g/L,PACPAFSC。,PAC,PAFSC,PACPAFSC。6,PAFSC0.4mg/L,COD68%92%。6(a)COD(b)3PAFSC。:20min,80℃,6mol/L,n(HCl)∶n(Al)=3∶1。95%,12%~15%。。,PAC。PAFSC400mg/L、pH5.5,COD68%92%。:[1],.[J].,2003,16(4):45-49.[2],,.[J].:,2003,16(4):47-49.[3],,,.[J].,2006(1):9-11.[4],,.[J].,2007,23(3):77-79.[5],,,.[J].,2004,26(2):121-123.[6],,.[J].,2012,26(11):23-26.[7],.[J].,2007,18(2):24-27.———————————:2015-09-22:(1963—),,,。:liu276326@163.com20163:65
本文标题:含铝废渣制备聚硅酸铝铁絮凝剂处理造纸废水
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