超声技术处理难降解有机物的影响因素魏瑞霞

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0,、、、、,,[1],2090,[2],POPs()[3-4]、[5]。,,,。11.1,。,,,,,,。,,,(5000K)(50MPa),100m/s,,3:①,、,,·HO·H,·HO2,·HO·H,·HO2,·HOH2O2;②,,2100K。·HO,。1,2(1.,063009;2.063009):,(BOD/COD),。,。:;;;:X5:A:1674-4829(2009)01-0064-03:2008-10-07:(1974-),,,,,.AdvanceofApplicationandResearchofUltrasonicTechniqueinCokePlantWastewaterTreatmentWEIRui-xia,CHENJu-xiangAbstract:Asanoveladvancedoxidationmethods,ultrasonictechnologycanincreasethedegradationofrefractoryorganicsandenhancethebiodegradabilityofwastewaterandplayagreatroleincokingwastewatertreatmentwithabrightfuture.Thispaperreviewsthemechanismsandmaininfluencefactorsofultrasoundcavitationfordebiodegradibleorganicwastewatertreatment.Finally,thepapersummarizestheapplicationprospectofultrasonictechnologyforwastewatertreatmentinourcountry.Keywords:Ultrasonictechnology;Ultrasoniccavitation;Refractory;Influencefactors22120092EnvironmentalScienceandTechnologyVol.22No.1Feb.2009221;③·H,·HO,·HO2H2O2,,CO2,H20。H2O→H·+HO·H·+O2→HO2·2HO·→H2O22HO2·→H2O2+O2,、、[6]。1.21.2.12,,。(W/cm2)/,(W/mL)/。1.2.1.1。,,,。[7],,,,:,,。,,,。1.2.1.2,:,,,,。,,,,,。1.2.1.3,。,。,,。[8],。,,。,。1.2.2,,1.2.2.1:①η,,;②σ,(),,Pm,Tmax。,,。1.2.2.2pHpH,pH,,。pH,,,,,,。1.2.2.3、;、,,。1.2.2.4:;,,,。[9]500mL,18kHz12.0W/cm2,,、240min,、240min,CODCr4.54%,27.50%64.78%。,6520092CODCr37.5%。2[10]500mL,18kHz,54W,:①;②,;③。[11]-(18kHz,119.4kW/m2,135W,54W),-CODCr,,CODCr45%81%,,,。[12]Fenton+FentonFenton101245,ρ(CODCr)223.9mg/L43.3mg/L,,+Fenton16,ρ(CODCr)37.8mg/L,,,。HO·,。[13]、Fenton,、Fenton,。[14]、FentonUS/Fenton3ρ(CODCr)4799mg/L,pH9.17,FentonCOD60min47.1%,US/Fenton40min,COD55.6%。,US/FentonFenton,。3、、,,、。,。,,,()。。[][1]WUJM,HUANGHS,LIVENGOODCD.Ultrosonicdestructionofchlorinatedcompoundsinaqueoussolution[J].EnvironmentalProgress,1992,11(3):195-201.[2]LANGHREYZ,BEARE,JONESR,etal.Aqueoussonolyticdecompositionofpolycyclicaromatichydrocarbonsinthepresenceofadditionaldissolvedspecies[J].UltrasonicsSonochemistry,2001,32(8):353-357.[3],,.[J].,2005,18(2):46-48.[4],,.[J].,2007,20(4):17-19.[5],.[J].,2004,24(3):9-11.[6],,,.[J].,2005,22(1):28-31.[7].[M].:,2006:78-81.[8],.[J].,1999,18(1):35-38.[9],,,.[J].,2004,18(3):344-349.[10],,,.[J].,2003,55:127-129.[11],,,,,.-[J].,2005,24(3):65-69.[12],,,.、Fenton[J].,2004,24(2):43-45.[13],,,.、Fenton[J].,2006,28(7):508-511.[14],,,.US/Fenton-[J].,2006,26(6):17-19.()66

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