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doi:10.3969/j.issn.1002-154X.2010.08.005周云云 陈孟林 劳静丹 宿程远 梁玉龙(,541004) ,NiO,H2O2,NiO。,NiOH2O2,,;pH;;,。NiO:H2O20.3mL/mL,pH4～5,30℃60min。 NiO H2O2 :2010-06-22:(2008038):(1987～),,。:(1965～),,, ExperimentalResearchonTreatmentofPrintingandDyeingWastewaterbyCatalyticOxidationRegenerationProcessZhouYunyun ChenMenlin LaoJingdan SuChengyuan LiangYulong(SchoolofEnvironmentandResources,GuangxiNormalUniversity,GuangxiGuilin541004)Abstract Withtheprintinganddyeingwastewateroftowelfactoryasthetreatmentobject,theNiOadsorbingtheprintinganddyeingwastewaterwasresearchedexperimentallyaboutitsoxidationregeneration.TheNiOwasmadebyprecipitationmethodanditwasasadsorbent,choosetheH2O2asitsoxidant.Andtheresultsshowasflollowings:theregenerationefficiencyofNiOincreasesfollowingH2O2concentrationandoxidantiontimeincreased,apidlyatfirstandthenslowly.WhenthepHvalueofoxidantincreases,itincreasesfirstlythendecreases.Buttheregenerationtimesincreases,itdecreasesdirectly.Andincreasingthetemperatureatthelowlevelishelpfultoincreasetheregenerationefficiencywhileitisnotmeaningfulatthehighlevel.SotheoptimumregenerationconditionsofNiOareasflollow-ings:theH2O2concentrationis0.3mL/mL,pHisbetween4to5,andtheoxidantiontimeis60minutesunderthe30℃.Keywords printinganddyeingwastewater NiO H2O2 oxidantion regeneration 、CODcr、,、、、、,[1～2]。。,[3]。,[4]。,NiO,。NiO:、、(NiO,—15—24820108 ChemicalIndustryTimes Vol.24,No.8Aug.8.2010),NiO。:、、、。。H2O2,2。,NiO[5],,NiO。11.1 :BS210S;;CJJ79-1;8200LH;202-;;PHS-3CpH;THZ-82A;80-2B。:NiSO4·6H2O;(NH4)2CO3;H2O2(30%),。:,,:pH8.97,CODcr1239.48mg/L,450,58mg/L。1.2 COD(GB11914-89);pH(GB6920-86);(GB11903-89);(GB11901-89)。1.3 (1)NiO[6]500mL30%NiSO4·6H2O20%(NH4)2CO3,30%NiSO4·6H2O78℃,20%(NH4)2CO3(nNiSO4·6H2O∶n(NH4)2CO31∶1.2)2～3h,60min。1h,,,105℃,300℃2.5h,NiO。(2)[5]0.1gNiO,50mL250mL,150r/min,,,,CODcr,H2O2H2O2,,,105℃,,NiO,,。NiOQeCODcr,[7]:Qe[ρ(COD0)-ρ(CODe)]V/m(1):ρ(COD0)—CODcr,mg/L;ρ(CODe)—CODcr,mg/L;V—,L;m—NiO,g。[8],NiONiO,。NiOQre/Q0e×100%(2):Qre、Q0e—NiO、NiO(CODcr),mg/g。22.1 H2O20.4mL/mL,pH,25℃,,,1。1 Fig.1 Theeffectsofreactiontimeontherateofregeneration1,NiO,20～60min,,NiO—16—化工时刊 2010.Vol.24,No.8 ·《TechnologyExperiment》,52.51%～77.31%,60min,,77.31%～83.14%。,H2O2,,,H2O2,[9]。,,,、[5]。2.2 25℃,60minpH,H2O2,,2。2 Fig.2 TheeffectsofconcentrationofH2O2ontherateofregeneration2,,H2O20.1mL/mL0.3mL/mL,,36.6%72.4%,,H2O20.3mL/mL,72.4%。H2O2,H2O2,HO·;H2O2,H2O2HO2·,HO2·HO·,H2O2[10]。:H2O2+HO·HO2·+H2OHO2·+HO·H2O+O22.3 pH25℃,60min,H2O20.3mL/mL,pH,,3。3,,3 pHFig.3 TheeffectsofpHofregeneratedliquidontherateofregenerationpH,NiO,pH4～5,,71.14%。,H2O2,,,[10]:H2O2+HO2-H2O+O2+HO·HO·+HO2-H2O+O2-pH4～5,H2O20.3mL/mL,pH5.3,pH。2.4 0.3mL/mL,pH,60min,,4。4 Fig.4 Theeffectsoftemperatureontherateofregeneration4,20℃30℃,,17.53%～80.07%,30℃40℃,,80.07%～—17— 2010.Vol.24,No.8 化工时刊57.41%,40℃50℃,57.41%～74.27%。,:,;,H2O2[11];40℃～50℃,H2O2,30℃40℃,。,30℃。2.5 ,NiO4,H2O20.3mL/mL,25℃,60min,pH,5。5 Fig.5 Therelationbetweentimesandrateofregeneration5,,,172%,252.33%,3,11.83%。,H2O2,NiO。,NiO—,2,NiO[5]5～6,60%。,。3 NiOH2O2,:NiOH2O2,,;pH;,2;,。NiO:H2O20.3mL/mL,pH4～5,30℃60min。[1] ,,.[J].:,2003,18(2):40～44[2] ,,.-[J].,2003,16(5):37～41[3] ,,.[J].:,2005,31(1):72～75[4] ,,.[J].,2004,24(3):12～16[5] .-.[D]...2009[6] .-.[D]...2006[7] ,,.-[J].,2009,40(4):30～33,43[8] NarbaitzRM,CenJ.Alternativemethodsfordetermingthepercentageregenerationofactivecarbon[J].WaterRe-search,1997,31(10):2532～2542[9] ,,.H2O2-MnO2[J].,2009,23(1):22～24[10] MuruganandhamM,SwaminathanM.Photochemicaloxida-tionofreactiveazodyewithUV-H2O2process[J].DyesandPigments.2004,62(3):269～275[11] ,,.H2O2B[J].,2004,24(5):809～814—18—化工时刊 2010.Vol.24,No.8 ·《TechnologyExperiment》