H2O2深度氧化处理石化废水的研究

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1,2,1,2,1,2,3,2,3,2,3(1.,101500;2.,100082;3.(),100081):(Y-01-14-04):“O3”“O3/H2O2”,O3。:40min,pH4.99,O3153mg/L,H2O23,27.72mg/L,CODCr111.8mg/L7.02mg/L,93.7%;5001.5,99.7%;2.23NTU0.28NTU,87.4%;m(BOD)/m(CODCr)0.060.31。H2O2,H2O2,,CODCr。O3/H2O2O3,,GB18918—2002《》A。:;;O3;O3/H2O2;:X703.1;X742:A:1009-2455(2014)06-0023-05StudyonadvancedtreatmentofpetrochemicalwastewaterbyO3-H2O2combinedoxidationWEIXiang-jia1,2,WANGLan1,2,QIAORui-ping1,2,3,YUBin2,3,LIUKai-nan2,3(1.PotenEnvironmentResearchandDevelopmentCenter,Beijing101500,China;2.PotenEnvrironmentGroupCo.,Ltd.,Beijing100082,China;3.Poten(Beijing)EnvironmentDesignandResearchInstituteCo.,Ltd.,Beijing100081,China)Abstract:SingleO3oxidationprocessandO3-H2O2combinedoxidationprocesswereusedforadvancedtreatmentofpetrochemicalwastewaterrespectively,andtheinfluencesofdifferentfactorsonthetreatmenteffectundercontinuousozoneaerationconditionwereinvestigated.Theresultsshowedthat:undertheconditionthatthereactiontimewas40min,thepHvaluewas4.99,thedosageofO3was153mg/L,H2O2wasaveragelyaddedby3stepswithdosageof27.72mg/L,themassconcentrationofCODCrdecreasedfrom111.8mg/Lto7.02mg/L,theremovalratereached93.7%;thechromadecreasedfrom500timesto1.5timesandtheremovalratewas99.7%;theturbiditydecreasedfrom2.23NTUto0.28NTUwitharemovalrateof87.4%;them(BOD)/m(CODCr)valueincreasedfrom0.06to0.31.Itwasindicatedthat,theaddingmodeofH2O2hadacertaineffectontheoxi-dation,onthepremisethatthetotaldosageofH2O2wasinvariant,theCODCrremovaleffectbydosingH2O2inbetcheswasobviouslybetterthanthatbyaddingitonce,andthehighestremovalratewasobtainedwhentheH2O2wasaveragelyaddedbysteps.ComparedtosingleO3oxidation,O3-H2O2combinedprocesshadabetterperformancewhentreatingpetrochemicalwastewater,whichcouldbeusedforitsadvancedtreatment,theeffluentwaterqualitycouldcompletelymeetthespecificationforclassAgrade1inGB18918—2002Dischargestandardofpollutantsformunicipalwastewatertreatmentplant.Keywords:petrochemicalwastewater;advancedtreatment;singleO3oxidation;O3-H2O2combinedoxida-tion;addingmodeO3/H2O2INDUSTRIALWATER&WASTEWATERVol.45No.6Dec.,2014·23·INDUSTRIALWATER&WASTEWATERVol.45No.6Dec.,2014、,、。,、,,,、[1-2]。,,,[3]。,,:[4-5]、[6-10]、[11-15]、[16-19]。O3,。O3[20],O3/H2O2[21-22]、O3/UV[23]、O3/[24]、O3/[25-27]。O3H2O2O3,MBR,、pH、H2O2H2O2MBR。11.1O3,O3,,O3,,KI(2%),1。(Φ35mm×600mm),,500mL,O3,KI。,,Na2S2O3。CODCr、BOD5、UV254。1.2MBR,1。1.3:CH-KG2,UV2600,CTL-12ACOD,SHP,Orion3-StarpH,AL104-IC,。:H2O2(30%)、Na2S2O3、KI、H2SO4NaOH,。1.4MBR“O3”“O3/H2O2”2,O3,、pH;O3/H2O2,、pH、H2O2,,MBR。1.5pH;CODCr;BOD5;;CJ/T3028.2—94《、、》;UV254。22.1O32.1.1UV254CODCr6,500mL,O3153mg/L,10、20、30、40、50、60min,,3()。CODCrUV254,2。KI1O3Fig.1DeviceofO3oxidationreactionpH//NTUρ(CODCr)/(mg·L-1)ρ(BOD5)/(mg·L-1)m(BOD5)∶m(CODCr)8.965002.23111.86.650.061Tab.1Experimentalwastewaterquality·24·,,,:O3/H2O22CODCrUV254Fig.2EffectofreactiontimeonCODCrandUV254removal102030405060t/min/%100806040200CODCrUV2543pHCODCrUV254Fig.3EffectofinitialpHvalueonCODCrandUV254removalCODUV2543.084.997.058.9611.04pH/%100806040200CODCrUV2544H2O2CODCrUV254Fig.4EffectofH2O2dosageonCODCrandUV254removalCODUV25410203040506070H2O2/(mg·L-1)/%100806040200CODCrUV2542,,UV254CODCr,40min,UV254CODCr。,O3O3,UV254CODCr。,O3,O3,CODCrUV254。,pH,·OH,O3·OH,O3。O3,。,40min,O3153mg/L,O3。2.1.2pHUV254CODCr40min,O3153mg/L,pH3.08、4.99、7.05、8.96、11.04,pHO3CODCrUV254,3。3,pH3.084.99,CODCrUV254。pH7.05,UV254CODCr,pHUV254CODCr。,pH4.99,CODCr71.2%,pH4.99。O3,,O3;,O3·OH,。O3,CO32-HCO3-·OH。pH7,CO32-HCO3-,·OH。pH,OH-,·OH。,pH4.99,CO32-HCO3-,·OH。2.2O3/H2O22.2.1H2O2UV254CODCr40min,pH4.99,O3153mg/L,H2O20、9.24、18.48,27.72、36.96、46.32、64.68mg/L,H2O2CODCrUV254,4。4,H2O2,CODCrUV254,H2O227.72mg/L,UV254CODCr,83.17%82.02%。H2O2,UV254CODCr。H2O2O3。H2O2HO2-,HO2-O3·OH,O3·25·INDUSTRIALWATER&WASTEWATERVol.45No.6Dec.,20145pHCODCrUV254Fig.5EffectofinitialpHvalueonCODCrandUV254removal3.054.997.028.9611.02pH/%100806040200CODCrUV254H2O2/(mg·L-1)ABCD27.729.24018.481309.249.249.242609.2418.4802H2O2Tab.2DifferentaddingmodesofH2O2CODUV2546H2O2CODCrUV254Fig.6EffectofH2O2addingmodesonCODCrandUV254removalABCD/%100806040200CODCrUV254,·OH[27]。·OH,,CODCr。H2O2,H2O2·OH,。H2O227.72mg/L。2.2.2pHUV254CODCr40min,O3H2O215327.72mg/L,pH3.05、4.99、7.02、8.96、11.02,pHO3/H2O2CODCrUV254,5。5,O3/H2O2,pH3.054.99,CODCrUV254,pH4.99,CODCrUV25482.02%83.17%。pH,CODCrUV254。:pHO3/H2O2,pH,。pH,H2O2HO2-;pH,H2O2HO2-,O3·OH,,O3。pH4.99,CO32-HCO3-,,·OH,。O3/H2O2,pH4.99。2.2.3H2O2CODCrUV254pH4.99,40min,O3H2O215327.72mg/L,13、26minH2O2,2。H2O2O3/H2O2UV254CODCr,6。6,O3/H2O2,H2O2,CODCrUV254,,93.56%93.91%。H2O2O3,H2O2,·OH,·OH,H2O2,·OH。H2O2,·OH,。O3/H2O2,pH4.99,40min,O3153mg/L,H2O227.72mg/L(H2O2O30.26),3,5001.5,99.7%;2.23NTU0.28NTU,87.4%;UV2541.2480.076,93.9%;CODCr111.8mg/L7.02mg/L,93.7%,GB18918—2002《》A。3(1)O3/H2O2·26·:(1987-),,,,,,()xiangjia.wei@poten.cn。:2014-11-10(),,,:O3/H2O2O3。(2)O3/H2O2:O3153mg/L,40min,pH4.99,H2O23,27.72mg/L,CODCr、UV25493.7%、99.7%93.9%,GB18918—2002A。(3)O3/H2O2、。O3·OH,,CODCr,。:[1],.[J].,2007,36(2):1102-1105.[2],,,.[J].,2009,32(9):34-37.[3],,,.[J].,2006,28(5):356-359.[4],,.[J].,2011,35(4):1

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