H2O2协同氧化法预处理石化废水的实验研究

20131740259·25·O3/H2O2(266042)[]O3/H2O2O3O3/H2O2O3/H2O2O3pH1040minO34g/hH2O230mmol/LCOD96.79%76.78%B/C0.0670.380[]O3/H2O2COD[]TQ[]A[]1007-1865(2013)17-0025-02ExperimentalStudyonPretreatmentofPetrochemicalWastewaterbyO3/H2O2LiHaigang(CollegeofEnvironmentandSafetyEngineering,QingdaoUniversityofScienceandTechnology,Qingdao266042,China)Abstract:ThepetrochemicalwastewatercontainingvolatilephenolfromafactorywastreatedbyO3/H2O2.TheO3processandO3/H2O2processwascomparedinthisexperimentinordertodeterminetheoptimalmethod.TheresultsshowedthatwhentheinitialpHwas10,thereactiontimewas40min,ozoneflowwas4g/h,andH2O2dosagewas30mmol/L,theremovalratesofvolatilephenolandCODwereupto96.79%and76.78%,B/Cincreasedfrom0.067to0.380.Keywords:O3/H2O2petrochemicalwastewatervolatilephenolCOD[1]FentonO3[2-3]O3/H2O2·OHCO2H2OCOD[4]O3/H2O2COD11.115~20t/h11Tab.1RawwaterqualityofwastewaterCOD/(mg·L-1)BOD5/(mg·L-1)/(mg·L-1)NH3-N/(mg·L-1)pH/779052011944954.851801.2CHYF-6A1L/min80mm1200mm1O3pHH2O2COD1O3/H2O2Fig.1experimentalequipmentofO3/H2O21.3[5]CODBOD5BODTrak4-NH3-NT6-pHPHS-3CpH22.1O3O3/H2O21LpH10O33g/h5102030405060min1L50mmol/LH2O2COD2010203040506070809010001020304050602O3/H2O2O3Fig.2EffectcomparisonbetweenO3/H2O2methedandO3method240minO3/H2O2COD[]2013-08-01[](1988-)201317·26··OHH2O2·OHO3/H2O2[6]2.2pHO33g/hH2O220mmol/LpH2468101240minCOD301020304050607080901000246810123pHCODFig.3EffectofpHvalueonremovalratesofCODandvolatilephenol3CODpHpH10[7]O3+OH-HO2-+O2H2O2HO2-+H2HO2-+O3OH+O2-+O2·OHOH-OH-·OHpH10COD69.74%95.76%pH1269.92%96.07%pH10·OHpHpH12pH9.68pH10pH7.33pH102.3O33g/hH2O220mmol/LpH105102030405060minCOD4010203040506070809010001020304050604CODFig.4EffectofreactivetimeonremovalratesofCODandvolatilephenol4COD40minCOD68.70%96.03%COD·OH·OH[8]40min2.4O3pH10H2O220mmol/LO3123456g/h40minCOD5010203040506070809010001234565O3CODFig.5EffectofozoneflowonremovalratesofCODandvolatilephenol5O3CODO34g/h76.30%96.48%O3O3·OHCODO3O3O3·OHCODO34g/h2.5H2O2O34g/hpH10H2O21020304050mmol/L40minCOD60102030405060708090100010203040506H2O2CODFig.6EffectofdosageofH2O2onremovalratesofCODandvolatilephenol6H2O2CODH2O230mmol/L76.78%96.79%H2O2H2O2H2O230mmol/LH2O2·OHCODH2O2·OHH2O230mmol/L2.6O3/H2O222Tab.2WaterqualityoftreatedCODB/CNH3-NpH/(mg·L-1)1808.8238.34100.3839.657.15/%76.7896.7994.44-91.99-(41)20131740259·41·32()()Fig.2Unmodified(blue)andmodified(red)IRspectraofsixmethylolMelamineAdhesives23343.73cm-1(-NH)812.25cm-11360.92cm-11557.89cm-1(C-N)+(NH)1009.26cm-1(CH3-O-)3376.75cm-1C(NH)812.03cm-11367.70cm-11552.59cm-1(C-N)+(NH)988.65cm-1CH3–O-)2949.34cm-1CH644.40cm-1CH4/KHn()n()169060min7%10%50%~60%/%1.0/d4~6[1][J]200930(3)61-65[2][J]20062(5)11-17[3]20065[4][J]200918(5)23(2)34-36[5][J]2006(1)12-14[6][J]200824(1)147[7][D]2004[8][J]2005(01)[9][J]2010(4)28-30[10][J]200723(1)165[11][D]2007[12][J]201038(3)109-111[13][J]199920(2)23-25[14][D]2006[15][J]200418(14)12-15[16][J]201111651-654[17][J]2010(27)21-24[18][D]20115[19][D]20125[20]BaumgartlHorstSchierholzetalThermoformableMelamine/Formaldehyde-BasedFoamsExhibitingLow-FormaldehydeEmissionUS20080197524[P]2008[21]JuergenWeiserlfgangReutheretalModifiedmelamineformaldehyderesinUS5322915[P]1994062[22]YUANLLIANGGZXIEJQetalSynthesisandcharacterizationofmicroencapsulateddicyclopendadienewithrnelamineformaldehyderesins[J]ColloidpolymSei2007285(7)781-791[23]ManSinghVinodXumarPreparationandcharacterizationofmelamine-formaldehyde-polyvinylpyrrolidonepolymerresinforbetterindustrialusesovermelamineresins[J]JournalofAppliedPolymerScience2009114(3)1870-1878[24]SuminKimHyun-JoongKimEffectofadditionofpolyvinylacetatetomelamine-formaldehyderesinontheadhesionandformaldehydeemissioninengineeredflooring[J]InternationalJournalofAdhesionandAdhesives20050143-7496[25]TsvetkovVEZuevaMYuSynthesisandpropertiesofmodifiedmelamineformaldehydeimpregnatingoligomers[J]PolymerScienceSeriesD1995-42122011volume4stage3164166[26]KandelbauerAWuzellaGMahendranAetalModel-freekineticanalysisofmelamine-formaldehyderesincureChemicalEngineeringJournal1385-89472009volume152stage2556-565(26)3(1)O3/H2O2CODO3(2)O3/H2O2pH1040minO34g/hH2O230mmol/LCOD96.78%76.78%B/C0.0670.380[1][J]200628(5)356-360[2]Fenton[J]()200936(3)87-90[3][J]201232(5)67-69[4]YangDeminTreatmentofToxicPhenolicWastewaterbyAdvancedOzoneOxidization[J]ChinaPetroleumProcessingandPetrochemicalTechnology201012(3)59-64[5]()[M]200291-283[6]O3/H2O2[J]200935(11)8-10[7]O3/H2O2[J]20115(3)601-604[8][J]()201234(2)100-104