改性木质素磺酸盐处理含镉废水的研究李爱阳

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[],:,1.5mol/L,48h,、。pH7,80mg/L,60min,,Cd2+99%。[];;[]X703.1[]B[]1005-829X(2009)11-0028-041211.4210022.410008Abstract:Thecadmium-containingwastewaterinelectroplatinghasbeentreatedbyflocculationwithakindofhome-madeflocculant.Theresultsshowthatthemodifiedlignosulfonatehavingbiggermolecularandbetterfloc-culationeffectcanbeobtained,whenthemonomerdosageis1.5mol/Landreactiontimeis48h,atroomtem-perature.Usingthemodifiedlignosulfonatefortreatingcadmium-containingwastewater,whenitspHis7,dosageofmodifiedlignosulfonate80mg/L,flocculationtime60minandatroomtemperature,theremovalratesofCd2+fromcadmium-containingwastewaterreachesmorethan99%.Keywords:electroplatingwastewater;cadmiumions;lignosulfonateStudyonthetreatmentofcadmium-containingwastewaterwithmodifiedlignosulfonateLiAiyang1,LiDasen2,LiAnwu1(1.ChemicalEngineeringDepartment,HunanInstituteofTechnology,Hengyang421002,China;2.ChangshaBroadHomesIndustrialCorporation,Changsha410008,China)[](07C030);(06KG59)、、。,,,。、、、、。。“”。、、、〔1-8〕。,;,,、Cd2+,。,。,,、、、,。、、、。。,,,〔9-10〕。,,,,《》。2911200911IndustrialWaterTreatmentVol.29No.11Nov.,200928——2009-11,29(11)11.1:,;。:723,;CS-501SP,;pHS-25,。1.2,,10min,,,,,,,。1.3250mL,100mLCd2+100mg/L(),pH、、、Cd2+。1.4Cd2+,Cd2+50~100mg/L,pH6~8,,pH7,80mg/L,60min,,Cd2+。22.12.1.1,,1。1,,,,。,。2.1.2K2S2O8+Na2S2O31.0×10-2mol/L,1∶50,,0.5、1.0、1.5、2.0、2.5、3.0mol/L,,2。22,,1.5mol/L,,,,,。。1.5mol/L。2.1.3K2S2O8+Na2S2O31.0×10-2mol/L,1.5mol/L,1∶50,,12、24、36、48、64、72、84、96h,,3。33,48h,,48h,,48h。2.22.2.1pH80mg/L,0.1mol/LHCl0.1mol/LNaOHCd2+pH,pHCd2+,1。1pHCd2+1,pH,Cd2+,pH>8,Cd2+,Cd2+pH7。/(mol·L-1)0.51.01.52.02.53.0/1045.1308.52011.1311.209.4608.770/h1224364864728496/1046.3208.76010.5211.2611.4111.7611.8311.92/℃102030405060/10411.6011.3211.0010.459.6708.3101,:29——2009-11,29(11)89.320.07599.9274.520.08399.8997.260.09699.9095.730.1099.8964.550.06999.8979.330.08799.8952.840.06199.8887.960.07399.9290.290.09499.9076.450.08099.89Cd2+/(mg·L-1)/%2.2.2Cd2+2。2,,Cd2+,80mg/L,Cd2+99%,。80mg/L。2.2.380mg/L,pH7,,10、20、30、40、50、60、70、80、90min,Cd2+,3。3Cd2+3,,Cd2+,60min,Cd2+,60min。2.2.480mg/L,Cd2+10、20、30、40、50、60℃,Cd2+,4。4,,Cd2+,40℃,Cd2+,。2.2.5Cd2+,,,Cd2+,4。4Cd2+4,Cd2+。,,,,Cd2+《》(GB8978—1996)。3,,,1.5mol/L,48h。Cd2+,80mg/L,pH7,60min,,Cd2+99%,《》(GB8978—1996)。[][1].[M].:,2000:79-99.[2],.[M].:,2002:30——[](1969—),2006,,。:13337349883,E-mail:layllp@126.com。[]2009-06-24()[],。:u0≤4mm/s,10,15。,,,。SSpH。[];;[]X703.1[]B[]1005-829X(2009)11-0031-0412111.0750242.100037Abstract:Inordertostudyanddevelopthenewtechnologiesofrecyclingwastewaterfromdesulphurizationdustremovalforindustrialboilers,acoagulationtreatmentpilotsystemhasbeenconstructed,thecoreofwhichisbysedimentationofmultilayer&superimposedcompoundflow.Theresultsshowthattheaverageturbidityintheeffluentis10degrees,andthemaximumis15degrees,whenthesurfaceloadu0≤4mm/s.Withtheincreas-ingofsurfaceload,theturbidityintheeffluentincreases,buttherelativedegreeoffluctuationreducesgraduallyandtheabsoluteamplitudeofvariationincreases.TheeffectofwaterquantityloadimpactonthewatertreatmentefficiencyisgreaterthanthefluctuationofpHandSSofinfluentwater.Keywords:sedimentationofmultilayerandsuperimposedcompoundflow;desulphurizationdustremoval;wastewaterreusePilotstudyonthetreatmentofwastewaterfromdesulphurizationdustremovalbysedimentationofmultilayer&superimposedcompoundflowNanGuoying1,XianYinxia2,RenShuping1,WangShuna1(1.HebeiInstituteofArchitectureCivilEngineering,Zhangjiakou075024,China;2.PetroChinaNorthChinaChemicalsMarketingCompany,Beijing100037,China),〔1-3〕、〔4〕〔5〕、〔6〕。10min、2.0mm/s,≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤≤2911200911IndustrialWaterTreatmentVol.29No.11Nov.,2009120-145.[3]ChanWC,FuTP.Adsorption/ionexchangebehaviorbetweenawater-insolublecationicstarchand2-chlorophenolinaqueousso-lutions[J].JournalofAppliedPolymerScience,1998,67(6):1085-1092.[4]KratochvilDB.Advancesinbiosorptionofheavymetals[J].TrendsinBiotechnology,1998,16(7):291-300.[5]ShermanM,JohnG,ThomasE.RemediationofCr()andPb()aqueoussolutionsusingsupportednanoscalezero-valueIron[J].Envi-ronmentScience&Technology,2000,34(12):2564-2569.[6],.[M].:,2000:29-37.[7],,.[J].,2006,32(8):9-12.[8],.[J].,2004,37(6):37-39.[9].[M].:,2001:36-59.[10],.[J].,2005,21(6):70-73.31——

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