8羟基喹啉改性膨润土处理印染废水研究邵红

1121．1101422．063000.8-,,,:pH3.5、7g/L、125r/min20min、70min,94.1%74.4%,,.;8-;;;;:TQ649.9:A:1004－0439(2010)10－0026－038-Studyontreatmentofdyeingandprintingwastewaterwith8-hydroxyquinoline-modifiedbentoniteSHAOHong1,XIAOHong-kang1,WANGLei2(1.CollegeofEnvironmentalandBiologicalEngineering,ShenyangInstituteofChemicalTechnology,Shenyang110142,China;2.DepartmentofForeignLanguagesTangshanCollege,Tangshan063000,China)Abstract：Animportantproblemindyeingandprintingwastewatertreatmentistoremoveitscolor.Anewtypeoforganicmodifiedbentonitewaspreparedusing8-hydroxyquinolineasmodifier.Thefactorsaffectingde－colorizationrateofdyeingandprintingwastewaterwasstudiedandtheresultsshowedthatpHwas3.5,7g/Lofbentonitestirredat125r/minfor20min,centrifugationtimewas70min.Themodifiedbentonitewasusedtotreatthedirectsunfastturquoiseblueandtheacidorange-reddyeandthedecolorizationratewere94.1%and74.4%,respectively.Adsorptionprocessofmodifiedbentonitetodirectsunfastturquoiseblueaccordedwithquasi-secondorderrateequations.Themodifiedbentonitewassuitableforthedecolorizationofdirectsunfastturquoisebluedye.Keywords：bentonite;8-hydroxyquinoline;modification;directsunfastturquoiseblue;acidicorange-red;decoloration2009-09-22(1965-),,,,.(1985-),,,.、、,.,、、..,、、[1],,,,.-[2-5],、,,,,.[6],,,,,.、、,TEXTILEAUXILIARIESVol．27No．10Oct．2010271020101010,.、、,,.、、.[7-9],8-,[10],.11.1:HCl、NaOH、8-(),,;:(),pH8~9,100mL/15g,62mmol/100g,15.:SX721,DHG-9240A,JJ-1,79-1.1.21.0g,,1000mL,,,.1.1.38-15.0g,100mL0.3g/L8-(NaOHpH),30min,60℃60min,,,0.096mm,.1.450mL,pH,,,,,=(1-A/A0)×100%.:A0,A.22.12.1.1pH1,pH2.5~3.5,,3.5,,.pH.pH,8-,pH.,,,,,H+.,pH3.5,76.0%48.2%.2.1.22,,;7g/L,,83.6%54.8%;7g/L,,,.7g/L.2.1.33,2.10~20min,,.,,;,,.20min,286.4%68.9%.,20min.1/(mg·L-1)10001000/pH155608.68100506.81/(g·L-1)▲—;●—pH=3.5,75r/min,10min,60min2/%3511●379455575●▲●▲●▲●▲●▲●▲●▲▲56585pH▲—;●—7.0g/L,75r/min,10min,60min1pH/%20010●▲2468406080●▲●▲●▲●▲●▲●▲●▲●▲8-27272.1.44,,2,70min,70min,70min.2.1.55,75~175r/min,,125r/min,94.1%74.4%,125r/min.2.2[11-12]Lagergren::,qe,mg/g;qtt,mg/g;k1,min-1;k2,g/(mg·min).pH3.5,125r/min,70min,8-99.8mg/L202.4mg/L,,8-.99.8mg/L202.4mg/L,R20.99770.9946(3).,,k20.0061g/(mg·min)0.0014g/(mg·min),qe12.83mg/g27.55mg/g.3(1),8-,.:pH=3.5,7g/L,70min,20min,125r/min.,94.1%74.4%.(2),,.:[1],.[J].,2008,33(1):96-98.[2],,.[J].,2008,25(3):177-180.[3],.[J].,2008(16):43-45.[4],,.[J].,2008,25(1):4-6.[5]CHENGYun,ZHOUQi-xing,MAQi-ying,etal.Progressintreatingm-ethodsofwastewatercontainingdyes[J].TechniquesandEnviron.ment-(31)/min▲—;●—pH=3.5,7g/L,75r/min,60min3/%2035●5406080●▲●▲●▲▲●▲●▲●▲1003025201510/min▲—;●—pH=3.5,7g/L,75r/min,20min4/%5090●607080●▲●▲●▲▲●▲●▲●▲70503010●▲90/(r·min-1)▲—;●—pH=3.5,7g/L,20min,70min5/%200●607080●▲●●▲▲●▲●▲●▲50▲90150100100tqt=1k2q2e+1qet(2)/(mg·L-1)99.8y=0.0779x-0.0217202.4y=0.0363x+0.0010R20.99770.9946k2/(g·mg-1·min-1)qe/(mg·g-1)0.006112.830.001427.553lg(qe-qt)=lgqe-k1t/2.303(1)28102.2.33,50min,85%;,,10min83.6%,30min85.9%.2.2.44,20g/L,85.9%,,.3(1)TiO2,TiO2,()...(2)350℃,20g/L、8.6%、30min,86%.:[1].[J].,2008,34(29):216-217.[2],.[J].,2007,44(6):46-49.[3],,.TiO2[J].,2000(4):5-7.[4].TiO2[J].,2001,23(5):241-242.[5].-H2O2[J].,1997,17(3):131-134.[6],.-[J].:,2000,19(6):77-80.[7]SUZUKIM,ITOT,TAGAY.PhotocatalysisofsculpturethinfilmsofTiO2[J].AppliedPhysicsLetters,2001,78(25):3968-3970.[8],,,.[J].,2004,24(4):24-35.[9],,,.-TiO2/[J].,2005,33(3):340-345.[10]ZHIJIANGJ,JINGW,ZONGZHEJ.EffectoftourmalinepowderonthephotocatalysisofnanoTiO2[J].TransactionsMaterialsAesearchSo-cietyofJapan,2004,29(5):1987-1991.2/℃35065.777.221.219.519.385.586.170018.7/%8.615.827.315.822.022.027.38.6/%85.986.186.386.474.874.774.975.2:20g/L,30min./min◆—;■—8.6%,350℃,20g/L3/%504030201050407060908030■◆■◆■◆■◆■◆/(g·L-1)8.6%30min4/%6040302010709080■■■■50(28)alPollutionControl,2003,4(6):56-60.[6],,,.[J].,2007,24(1):26-29.[7],,.[J].,2009,30(2):70-73.[8],,.[J].,2007,20(3):34-35.[9].[J].,2008,25(3):17-19.[10],,,.[J].,2007,23(3):80-82.[11],.X-3B[J].,2008,8(1):21-25.[12],,,.[J].,2007,28(11):2637-2641.■■■■■■■■■■■■■■■■■■■■■■31