吹脱法处理合成革厂DMF蒸馏废水中的二甲胺曲晶心

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TreatmentofdimethylaminecontainedinDMFdistillationwastewaterfromsyntheticleatherfactoriesbyairstrippingQuJingxin1,ChenJunzhi1,HeFei2,YangJianzhou1(1.KeyLaboratoryofAuxiliaryChemistry&TechnologyforChemicalIndustry,CollegeofChemistry&ChemicalEngineering,ShaanxiUniversityofScienceandTechnology,Xi’an710021,China;2.ZhejiangWenzhouResearchInstituteofLightIndustry,Wenzhou325003,China)DMF1,1,2,1(1.,,710021;2.,325003)[]DMF,,,,,95%,,,,。[];;[]X703.1[]A[]1005-829X(2010)01-0029-03Abstract:BasedontheexperimentalprocessoftreatingDMFdistillationwastewaterfromsyntheticleatherfactoriesbyairstrippingmethod,thetechnicalrouteofexperimentsandtechnologicalprocessarepresentedbriefly.Theresultshowsthatthetreatmenteffectofdimethylamine-containingwastewaterisbetterwhenitistreatedbyheatingairstrippingunderalkalicconditions.Thedimethylamineremovalratecanbeabove95%andnosecondarypollution.Thismethodischaracterizedbysimpleprocess,andsimpleoperation.Thepossibilityofapplyingthismethodtoproductionisdiscussed.Keywords:DMFdistillationwastewater;dimethylamine;airstripping[](20080518)〔1〕,1958,,。,,。,,,。〔2〕,,(DMF)〔3〕,。,DMF〔4-5〕,DMF,,,DMF,。,,,,,,,,。,,,、,,,。DMF。,DMF30120101IndustrialWaterTreatmentVol.30No.1Jan.,201029——2010-01,30(1),、,。〔6〕,。1,,,〔7-9〕。,、。。:G=K·F(C0-C)·t:G———t,kg;C0———,mg/L;C———,mg/L;F———,m2;K———,m/h。22.1DMF,6.192%。2.2(),(ZW-0.0517,),(PTHW,),(H250,)。2.3。2.41。33.1NaOH500mL,,NaOH,30min,1。1,NaOH。3.2500mL,NaOH,,30min,,2。2,,60~90℃,100℃,98.31%。3.3500mL,NaOH,,30min,,3。3,,V()∶V()=(50~120)∶1,V()∶V()=180∶1,98.29%。1NaOHNaOH/(mol·L-1)/%/%/%06.1925.688.270.16.1925.1716.510.36.1925.0618.280.56.1925.0318.780.86.1924.9619.911.06.1924.6624.741.26.1924.4727.811.56.1924.4228.62DMF130——2010-01,30(1)3.4,,95%。。(CH3)2NH+HCl→(CH3)2NH·HCl,。100%。,,,,,。,,,,。,,,〔10〕。3.5,,95%,50mg/L。4(1)NaOH,NaOH0.5mol/L,,。(2),、、。(3)DMF。,,。。(4)DMF,、、,,,。,。,。(5),,,、、,。(6)DMF,,。95%,50mg/L。、,、、、,,DMF。[][1],.[J].,2003,13(3):123-125.[2].[J].,2007,36(3):37-39.[3],.DMF[J].,2005,34(19):36-37.[4],.N,N-(DMF)[J].,2007,20(3):67-70.[5]SudakRG,DunivinW,RigbyMG.Municipalwastewaterrecla-mationandreverseosmosis[C]//TheNationalWaterSupplyIm-provementAssociation.ProceedingsoftheNationalWatersupplyImprovementAssociation1990BiennialConference,1990:225.[6].[J].,2002(8):60-62.[7],,.[J].,1998(4):21-23.[8].[J].,2000,17(6):35-37.[9]LiaoPH,ChenA,LoKV.Removalofnitrogenfromswinema-nurewastewatersbyammoniastripping[J].BioresourceTechnolo-gy,1995,54(16):17-20.[10].DMF[D].:,2005.[](1984—),。:15091598256,E-mail:qujingxin123@126.com。[]2009-09-16()3--1,2,4-———,.CN101220478··3--1,2,4-,3%NaCl5~25mg/L。3--1,2,4-,3%NaCl20mg/L3--1,2,4-,,15.60μA/cm20.366μA/cm2,97.65%。→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→→,:DMF31——

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