改性壳聚糖对染料废水的脱色研究

2320095JournalofHydroecologyVo.l2,No.3May,2009:2007-08-30:(2005HS008);(KK01062);(Z2006002):,1969,,,,E-mai:[e-mail]韩照祥,陈科,朱婷(淮海工学院化学工程学院,江苏连云港222005):(chitosan),,KY,pH,,,,;,;,;3:KY;Freundlich:;;:X788:A:1674-3075(2009)03-0042-06(chitosan),,B-1,4--D-,(C6H11NO4)n,,,,/210,COD,10,t,,,,,(,2006)11.11.1.1仪器JB-50-D();HZQ-C();UNICOWFJ7200();WGH-30A()1.1.2试剂(CH3)2CHOH;CH3OH;Y(C20H6Br4Na2O5);K(C16H9N2Na3O12S3);(C16H18ClN3S#3H2O)1.2,(C8H13NO5)n,,\90.0%,[8.0%,pH7.0~8.0(10g/L,25e),[1.0%,50.0~800.0mPa/s,[1.0%,[0.0015%,[0.00006%10g20g,10%HCl,20mg/LAgNO3,125mL30mL,1.310g20g125mL500mL,40e1h,,30mL(30min10mL),60e10h,,,,,,1.4,AgNO3C,l40e,;,60,40e,1.5,pH,,=1-A0A@100%:A0-;A-22.112,1440~1400cm-1-CH2-OH-,-NH2,-CH2OH,N-1Fig.1Infraredspectrumofformerandlaterofmodification2.22.2.1酸性铬蓝K100mg/LK,K,22KFig.2AbsorptioncurveofdecoloringacidchromeblueK,K520nm100mg/LK2468101214161820mg/L,520nmK,33KFig.3NormalcurveofdecoloringacidchromeblueK2.2.2曙红Y20mg/LY,Y,,44YFig.4AbsorptioncurveofecosinY,Y515nm20mg/LY2468101214161820mg/L,515nmY,55YFig.5NormalcurveofecosinY2.2.3亚甲基蓝20mg/L,432009年第3期韩照祥等,改性壳聚糖对染料废水的脱色研究,,66Fig.6Absorptioncurveofmethylenebluetrihydrate,660nm20mg/L2468101214161820mg/L,660nm,77Fig.7Normalcurveofmethylenebluetrihydrate2.32.3.1pH对脱色效果的影响100mg/LK20mg/LY20mg/L5mg/L,100mL6,pH2.003.004.005.006.007.00(?0.05),(0.0200?0.0002)g,30min,30min,,y=0.0269x+010045,5mg/LKA0=01139,y=0.0678x+0.012,5mg/LYA0=0.351,y=0.1215x+0.1364,5mg/LA0=0.7439,8,,pH,,pH6,,KY,,,,,1,,1,(,1998),,,,pH,(,2004)8pHFig.8TheeffectondecoloreffectonpH,KpH6Y,,,,,pH6,+1(,1998),H+(,2004),,pH6~82.3.2温度对脱色效果的影响100mLK(5mg/L)5,pH=6.00?0.05,100mLY(5mg/L)5,pH=6.00?0.05,100mL(5mg/L)5,pH=8.00?0.05,(0.0200?0.0002)g,25e35e40e45e50e(?0.5e)30min,30min,,y=0.0269x+0.0045,5mg/LKA0=0.139;y=0.0678x+0.012,5mg/LYA0=0.351;y=0.1215x+0.1364,5mg/LA0=0.7439,9,,,,44第2卷第3期水生态学杂志2009年5月,;,,,,K45e,Y45e,35e9Fig.9TheeffectondecoloreffectonTemperature2.3.3吸附剂添加量对脱色效果的影响100mLK(5mg/L)7,pH=6.00?0.05,100mLY(5mg/L)7,pH=6.00?0105,100mL(5mg/L)7,pH=8.00?0.05,0.01000.02000103000.05000.08000110000.1500(?0.0002)gK45e,Y45e,35e30min,30min,,y=0.0269x+0.0045,5mg/LKA0=0.139,y=0.0678x+0.012,5mg/LYA0=0.351,y=0.1215x+0.1364,5mg/LA0=0.7439,10,,K,,,,,(,2003),K,Y,,,,,,KY,,K0.10g,Y0.10g,0.08g10Fig.10Theeffectondecoloreffectonsorbentquantity2.4100mLK(5mg/L)7,pH=6.00?0.05,100mLY(5mg/L)7,pH=6.00?0.05,100mL(5mg/L)7,pH=8.00?0.05;,(0.0500?0.0002)g,K45eY45e35e1020306090120150min,30min,y=0.0269x+0.0045,5mg/LKA0=0.139;y=0.0678x+0.012,5mg/LYA0=0.351;y=011215x+0.1364,5mg/LA0=0.7439,1111Fig.11Flashpointgraphofsecond-orderkinetics2,:tqt=1k2(qe)2+tqt452009年第3期韩照祥等,改性壳聚糖对染料废水的脱色研究:qt-(mg/g);qe-(mg/g);k2-(mg/g#min)t/qt-t,12,112Fig.12CurveofSecond-orderkinetics1Tab.1Thesecond-orderkineticsparametersqek2RK9.93050.03770.9997Y9.70870.01690.99935.82750.01490.9915,(R)0.99,2.5124651012mg/LK6,pH=6.00?0.05;100mLY(5mg/L)6,pH=6.00?0.05;100mL(5mg/L)6,pH=8100?0105,(0.0200?0.0002)g,K45eY45e35e60min,30min,y=0.0269x+0.0045,5mg/LKA0=01139;y=0.0678x+0.012,5mg/LYA0=0.351;y=0.1215x+0.1364,5mg/LA0=0.74392.5.1Langmuir吸附等温线Langmuir3,Langmuir:qe=qmaxbCe1+bCe:Ceqe=Ceqm+1qmb:Ce-(mg/L);qmax-(mg/g);qe-(mg/g);b-(dm3/mg)1313LangmuirFig.13TheadsorptionisothermsofLangmuirRL(SeparationfactororEquilibriumpa-rameter):RL=11+bCi:b-Langmuir;Ci-(mg/L),RL0~1,;RL1;RL=1,;RL=0,(RaoMMeta,l2006)RL0~1,22RLTab.2TheRLindifferentconcentrations/mg#L-124681012K0.94020.88720.83980.79720.75870.7238Y0.91740.84750.78740.73530.68970.64940.75430.60550.50570.43420.38040.33842.5.2Freundlich吸附等温线Freundlich:qe=kfCe1/n:kf-;n;1/n0.1~0.5,21414FreundlichFig.14TheadsorptionisothermsofFreundlich46第2卷第3期水生态学杂志2009年5月3,KY1/n0.1~0.5,0.5,LangmuirFreundlichR,,FreundlichRLangmuirR,Freundlich3(R)1/nTab.3Thecorrelativeparametersand1/nFreundlichLangmuir1/nRRK0.81010.99970.9856Y0.81110.99720.98640.37420.84470.84983(1)KY3,:K:pH=645e60min0.10g;Y:pH=645e90min0.10g;:pH=835e60min0108g;(2),,,;(3),;(4),;(5)3:KY;(6),Freundlich:,,,.2004.[J].,(3):12-15.,.1998.[M].:.,.2003.[J].,23:100-101.,,,.2006.[J].,25(1):17-19.RaoMM,RameshA,RaoGPC,eta.l2006.Removalofcop-perandcadmiumfromtheaqueoussolutionsbyactivatedcarbonderivedfromCeibapentandrahulls[J].JournalofHazardousMaterials,129:123-129.(责任编辑万月华)StudyonDecoloringofDyeingWasterwaterbyModifiedChitosanHANZhao-xiang,CHENKe,ZHUTing(SchoolofChemicalEngineering,HuaihaiInstituteofTechnology,LianyungangJiangsu222005,China)Abstract:TakingtheChitosanastherawmateria,lmodifyingitwiththealkylogen,thentakingthemodifiedCh-itosantodealwithwastewaterdyedwithAcidchromeblueK,EosinYandMethyleneblue.Theinfluenceondeco-lorizationeffectundertheconditionsofdifferentpH,dosage,timeandtemperaturewasstudied.Theresultsindica-tedthatinanstrongeracidicsituation,thequantityofthesorbentwasreduced,andtheacidityisstronger,thedecrementaremore;Baseonthis,thedecolorizationrateelevatesalongwiththetemperatureincreases;Alongwiththesorbentrecruitment'sincremen,tthedecolorizationrateenhances;Threedifferentdyes'decolorizationeffectsare:AcidchromeblueKEosinYMethyleneblue;Theadsorptionprocesscanfollowthesecond-orderkine-