高压脉冲电凝Fenton生化法处理制药废水李宇庆

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-Fenton-1,2,3,1,2,3,1,2,3,1,2,3,1,2,3(1.,215122;2.,215122;3.,215122):-Fenton,UASB-AO。:-FentonpH4.0,45min,H2O24mL/L,Fenton60min。-FentonCODCr36.5%~39.2%,ρ(BOD5)/ρ(CODCr)0.130.32~0.34,,UASB81.4%~82.1%,AO88.0%~88.5%,CODCr95.4%~97.9%,GB8978—1996《》。:;Fenton;UASB;:X8:B:1674-4829(2011)03-0035-030,、、、,,、[1-2]。,,,。-Fenton,,,,、,[3-4]。Fe2+H202Fenton,[·OH],。,-Fenton,,UASB-AO。11.1:①(320mm×130mm×170mm),,:2011-03-28:(BK2008551);()(BE2010660);(“863”)(2009AA063901).:(1976-),,,,,.StudyonPharmaceuticalWastewaterbyPulseElectrocoagulation-FentonOxidation-BiologicalProcessLIYu-qing,MAJi,FENBiao,YUJie,YANGWen-tingAbstract:PulseelectrocoagulationandFentonoxidationwasusedinpharmaceuticalwastewaterpretreatment,thentheeffluentflowedintobiologicalprocess.ForpulseelectrocoagulationandFentonoxidationprocess,theoptimalconditionwas:thepHvaluewasabout4.0,thepulseelectrocoagulationreactiontimewas45min,theH2O2dosagewas4.0mL/L,theFentonoxidationreactiontimewas60min.Undertheaboveconditions,thetotalremovalrateofCODreached36.5%~39.2%.TheremovalrateofCODinUASBandAOwas81.4%~82.1%and88.0%~88.5%respectively.SothetotalremovalrateofCODreached95.4%~97.9%.TheresultshowedthattheeffluentqualitymetclassIspecifiedintheIntegratedWastewaterDischargeStandard(GB8978-1996).Keywords:Pulseelectrocoagulation;Fentonoxidation;UASBreactor;Pharmaceuticalwastewater24320116EnvironmentalScienceandTechnologyVol.24No.3Jun.201120116pHFentonUASBAO2mm,120mm,120mm,,,110mm,。②UASB,3:、。112mm,810mm,6L,37±2℃,,,,。③AO,1L2L。:,。1.2CODCr:;BOD5:5;pH:pHS—25pH;:MU2020。1.3,1。ρ(BOD5)/ρ(CODCr)=0.13,,5316μs/cm,-Fenton-UASB-AO。1.4CODCr,,,pH,,,Fe2+,Fenton。NaOH,,,,,UASB-AO,1。22.1pHCODCr20mm,10A,45min,pH。CODCr6521mg/L,pHCODCr,2。pH<4.0,CODCrpH;pH4.0,CODCr,18.1%;pH,CODCr。,。:Fe→Fe3++3e:2H2O+2e→H2+2OH-:2Fe+6H2O→2Fe(OH)3+3H2,H+,H+OH-Fe3+OH-,Fe(OH)3,;OH-,,H2O,,Fe3+,Fe(OH)3,。pH,pH。,CODCr,pH4.0。2.2CODCrpH4.0,10A,20mm,CODCr,3。3,,CODCr,,45min,CODCr。,,,45min,。,CODCr,45min。2.3H2O2CODCrH2O21ρ(CODCr)/(mg·L-1)6521ρ(BOD5)/(mg·L-1)8485.2600/(μs·cm-1)5316/pH12pHCODCr3CODCr201612840CODCr/%234567pH2420161284CODCr/%3045607590105120t/min36243302622181410CODCr/%306090120150180t/minFenton,pH4.0,60min,H2O2CODCr,4。4,H2O2,CODCr。H2O24mL/L,CODCr20.1%。H2O2,[·OH]H2O2,CODCr。,H2O2Fe2+Fe3+,Fe3+,[·OH][5-6]。,,H2O24mL/L。2.4FentonCODCrpH4.0,H2O24mL/L,CODCr,5。5,,CODCr,Fenton,60min,CODCr。,Fenton,。,CODCr,60minFenton。2.5—FentonNaOH,pH8.5~9.0,,,CODCr12.1%~13.7%,—Fenton—CODCr36.5%~39.2%,ρ(BOD5)/ρ(CODCr)0.130.32~0.34,,。2.6UASB—Fenton—UASB,pH=7.8,48h,1ρ(CODCr)=3964.8~4140.8mg/L,6,CODCr81.4%~82.1%,,VFA2.1~3.5mmol/L,pH7.2~8.0,,UASB[7]。2.7AOUASBAO,8h16h,1∶51∶20,2ρ(CODCr)=713.7~745.3mg/L,7,CODCr88.0%~88.5%,,ρ(CODCr)82.3~89.4mg/L,。3(1)—Fenton,CODCr18.1%~18.5%,FentonCODCr20.1%~21.3%,CODCr12.1%~13.7%,—Fenton—CODCr36.5%~39.2%,ρ(BOD5)/ρ(CODCr)0.130.32~0.34,。(2)—Fenton:pH4.0、45min,H2O24mL/L,5CODCr4H2O2CODCr6UASB、7AO、302622181410CODCr/%234567φ(H2O2)/(mL·L-1)4200360030002400180012006008684828078764812162024ρ(CODCr)/(mg·L-1)/%t/d80070060050040030020010004812162024ρ(CODCr)/(mg·L-1)9088868482/%t/d(40)-Fenton-3720116《》Fenton60min。(3)UASB81.4%~82.1%,AO88.0%~88.5%,CODCr95.4%~97.9%,GB8978—1996《》。[][1].[J].,2006,8(4):13-16.[2],,,.[J].,2003,16(1):39-42.[3],,,.[J].,2009,22(4):38-40.[4],,.CODCr[J].,2005,28(2):79-81.[5],,.Fenton[J].,2008,37(9):1074-1077.[6],,,.-Fenton[J].,2010,23(4):1-4.[7],,,.[J].,2004,24(1):24-26.()(37)。,,,,,,,、。4,A/A/O,A/O,SBR,。,20109,2630,1.22m3,1849,4900m3。“”,9000t/d。,,,,。5,,,,。[][1].H2S[J].,2009,22(1):71-74.[2].[J].,2010(1):5.[3],,.[J].,2007(7):78-82.[4],,,.[J].,2009,22(2):62-65.()!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!####40

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