您好,欢迎访问三七文档
当前位置:首页 > 行业资料 > 其它行业文档 > 改性钛白废渣对选矿废水中硫化物的去除曾懋华
,,,(,512005)[],、、pH,。:S2-3.58mg/L、pH8.2,1.0g/L,40min,S2-0.24mg/L,93.3%。[];;[]X703.1[]A[]1005-829X(2011)01-0018-04RemovalofsulfidefrommineralprocessingwastewaterwithmodifiedtitaniumdioxideresidueZengMaohua,LiZaibo,LongLaishou,XiChangsheng(CollegeofChemistry&EnvironmentEngineering,ShaoguanUniversity,Shaoguan512005,China)Abstract:Theinfluentialfactorsofremovingsulfidefrommineralprocessingwastewaterwithmodifiedtitaniumdioxideresidue,suchasdosage,reactiontime,pH,etc.havebeeninvestigatedandtheoptimumprocessconditionsareattainedbymeansoforthogonaltest.Theresultsshowthattheremovalratecanreach93.3%,after1.0g/LofmodifiedtitaniumdioxideresidueisaddedtothemineralprocessingwastewaterwhosemassconcentrationofS2-is3.58mg/L,andpHis8.2atordinarytemperature,beingstirredthoroughlyfor40min.Keywords:modifiedtitaniumdioxideresidue;mineralprocessingwastewater;sulfide12~15t〔1〕,,,,,。。160t/a,80%,,,。〔2〕,,。,,。650℃、、、,,,〔2〕。Mg2+,。、、、、、,、,。,,,。11.1:--,,;HJ-3,31120111IndustrialWaterTreatmentVol.31No.1Jan.,2011[](2009B090300186);(2008-07)18;SH2-,;1200℃,;pHS-2,。:、、、、、、、、、,,。1.2,300m3。(S2-),、、COD,(1mg/L),。1。1:pHmg/L。1.3,Fe2O3、SO3、SiO2、TiO2。,SiO2、Al2O3、Fe2O3、MgO、CaO、C。1.4(650℃,1h),。20%,60℃2h,,120℃1h。14,,,0.074mm,。2。2%1.5100mLS2-3.58mg/L、pH8.2500mL,、,,15min,S2-,;pH、、,S2-;,。22.1,。1g/L、,45min,15min,3S2-,1。13S2-1,3。45min,,<28%;,46%;93%。2,、、、,pH8.2,、、。,,、,、、、,。TiO2,〔3〕。,Al3+、Fe3+、Fe2+、Mg2+、,。2.2S2-,pH=8.2、S2-3.58mg/L,45min,Fe2O3SO3SiO2Al2O3TiO2MgOCaOC35.631.812.06.56.12.41.60.82011-01,31(1),:pHS2-Pb2+Zn2+Cd2+8.23.580.1210.0460.006Hg2+As3+Cu2+COD0.00020.0190.02069.319S2-,2。2S2-2,,S2-;1g/L,S2-91%,2g/L,S2-,,S2-,35min1g/L,,1g/L。,Al3+、Fe3+、Fe2+、Mg2+,Fe3+S2-Fe2S3FeS,S2-S,Al3+、Fe3+、Fe2+、Mg2+Al(OH)3、Fe(OH)3、Fe(OH)2、Mg(OH)2,S2-,,S2-。,,S2-。S2-,1g/L,Al3+、Fe3+、Fe2+、Mg2+S2-,,S2-,S2-。2.3pHS2-3.58mg/LpH,1.0g/L,45min,pHS2-,3。3,pH=6pH=7,S2-,pH8,S2-。Al3+、Fe3+、Fe2+、Mg2+pH>8,pH10,,,3pHS2-S2-,、、、〔4〕,、、,S2-。TiO2,S2-、。,pH≥8,S2-,pH=10,S2-。,pHS2-、Al3+、Fe3+、Fe2+、Mg2+TiO2〔5〕,。pH8.2,S2-,pH=10,。pH6~9,,pH,S2-,。2.4,pH=8.2、S2-3.58mg/L1g/L,S2-,4。4S2-4,S2-。S2-,,S2-TiO22011-01,31(1)20〔6〕,,S2-,。40min。2.5,S2-,、pH33。、3。3、3,S2-,,pHS2-。3,:1.0g/L、40min、pH8.2。2.6,2009726—283d,1.0g/L,40min,pH,,4。44,S2-93.3%,pH,S2-,。S2-0.24mg/L,1.0mg/L。3(1),。、、、。、,。(2)、、、、,,。(3):S2-3.58mg/L、pH8.2,1.0g/L,40min,S2-0.24mg/L,S2-93.3%。[][1],.[J].,2006,15(10):51-56.[2],.[J].,2005,21():110-112.[3]DurgakumariV,SubrahmanyamM,SubbaRaoKV,etal.AneasyandefficientuseofTiO2supportedHZSM-5andTiO2+HZSM-5zeolitecombinateinthephotodegradationofaqueousphenolandp-chlorophenol[J].AppliedCatalysisA:General,2002,234(1/2):155-165.[4],,,.[J].,2000,26(12):47-49.[5],,,.[J].:,2003(1):69-71.[6],,,.[J].,2003,35(3):265-268.[](1965—),1987,2003,,。:0751-8610627,E-mail:Zengmaohua@163.com。[]2010-09-05()pH/min/(g·L-1)S2-/%17300.352.6128.2350.363.7339400.368.4947350.677.8758.2400.683.5469300.676.1377401.090.7588.2301.082.2899351.089.36K1221.23211.02184.83K2229.55230.96237.54K3233.98242.78262.39k173.7470.3461.61k276.5276.9979.18k377.9980.9387.46R4.2510.5925.85pHS2-/(mg·L-1)S2-/(mg·L-1)S2-/%2009-07-267.93.620.2493.32009-07-278.33.240.1994.12009-07-288.13.380.2193.82011-01,31(1),:21
本文标题:改性钛白废渣对选矿废水中硫化物的去除曾懋华
链接地址:https://www.777doc.com/doc-6562469 .html