超声内电解处理高浓度含盐有机废水的实验研究叶强

叶　强1a,李正山1a,徐明杰2,黄　丽1b,马留贵2(1.a.;b.,610065;2.,610502)　　:、,、、pH、、。,,pH7;:2∶1,25%,pH7,0.225w/cm3,90min。COD50%,,。:;;:X703.1　　:A　　:1005-8141(2009)12-1060-04TreatmentofHypersalineOrganicWastewaterwithInteriorMicro-electrolysisIntensifiedbyUltrasonicIrridationYEQiang1a,LIZheng-shan1a,XUMing-jie2,HUANGLi1b,MALiu-gui2(1.SichuanUniversitya.CollegeofEnvironmentalEngineering;b.CollegeofLightIndustryandTextileandFoodEngineering,Chengdu610065,China;2.ChengduYirongEnvironmentalProtectionCo.Ltd,Chengdu610502,China)Abstract:Thispaperwasaboutthetreatmentofhypersalinesauerkrautwastewaterwithprocessesincludingiron-carboninteriormicroelec-trolysis,ultrasonicirridationandtheseveralcombinations.Itfocusedontheinvestigationofdegradationrateinfluencedbythesefactorslikeironcar-bonritio,thetotalamountsofironandcarbon,theincipientpHvalueoftheaqueoussolution,treatingduration,andpowerdensityofthesupersonicwave.Theexperimentindicatedthatthetotalamountsofironandcarbonsignificantlyaffectedtheinteriormicro-electrolysistreatment,andtheopti-mapHvalueforultrasonictreatmentofthiswastewaterwas7.Theoptimaconditionwasthattheironandcarbonratiokeeps2∶1,thetotaladditionamountsto25%ofthesolution'wholevolume,theincipientpHvaluewas7,andthepowerdensityoftheultrasonicwavewas0.225w/cm3,andthewholesystemranfor90minutes.Afterthesewholetreatment,thechemicaloxygendemand(COD)ofthewastewaterwasreducedbymorethan50%,whichachievedgoodpre-treatmentefficiencytothishyper-concentrationbrinewastewater,andreducedthetreatingloadofthefollowingbiologicaltreatment.Keywords:ultrasonicinternalelectrolysis;hyper-concentration;brineorganicwastewater　　:2009-10-22;:2009-11-19:(1986-),,,,。　　,,[1-3]。,,,。[4],。,[5],,,。。1　1.1　,。,COD20000—44000mg/L、Cl-80g/L,8%,8000,pH6—7,;COD3000mg/L,Cl-5000mg/L。,PAC+PAM、。Fenton,COD20%,。,,。1.2　:,,:Ф100mm×350mm,3L。,,·1060···　　　　　　　　　　　　　　　　　　　　　　　ResourceDevelopment&Market200925(12)1000ml,。,,2—4mm,,1mol/L30min,pH7。:KQ—50DB,40kHz,20—50W,100W。:JJ—1,,,,TN—100,COD,。1.3　(CODCr):[6]。CODCr,CODCr,5。,,CODCr[7]。pH:PHS—25C、、。CODCr:CODCr(%)=CODCr()-CODCr()CODCr()×100%。2　2.1　:pH、(“”)、、4,CODCr,L16(45)4(1),。1　pHA(min)BFe/C()C(%)D12-33041024-56021536-79012548-91200.535　　CODCr,,,COD。,100ml250ml,2mol/LNaOHpH8—9,1—2min,15min,CODCr,,2。,pH。4:pH,25%、pH2—3、2∶1、90min,。2　pH(min)Fe/C()CODCr(%)1A1B1C1D121.32A1B2C2D226.33A1B3C3D342.64A1B4C4D433.15A2B1C2D331.46A2B2C1D428.47A2B3C4D118.98A2B4C3D2239A3B1C3D421.410A3B2C4D32311A3B3C1D228.612A3B4C2D130.413A4B1C4D223.914A4B2C3D130.515A4B3C2D430.0616A4B4C1D331.36130.82524.527.4225.28-225.42527.0529.5425.45-325.8530.0429.37532.09-428.95529.46524.7328.24-R5.45.544.816.81-　　:,,。110%、pH2—3、4∶1,CODCr。2pH2—3、2∶1,CODCr。,(1),。1　·1061·ResourceDevelopment&Market200925(12)　　　　　　　　　　　　　　　　　　　　　　　··2　2,30%,65min;,Fe2+CODCr,25%。12,。10%,,,,。,25%、90min,。2.2　pH:200ml,0.225w/cm3、40kHz,pH2.5、4.5、7、91060min,CODCr。,2∶1、25%,100ml,pH8—9,1min,15min,CODCr,3。3,;pH,,[8]。pH,[9]。,,。,,;,。,pH,。,pH,。,,。,pH,NaOHpH,100ml15minCODCr,,。3　pH:200ml,pH:0.225w/cm3、0.175w/cm3、0.125w/cm3、0.1w/cm360min,CODCr。,,2∶1、25%,,pH8—9,CODCr,4。4,,,,CODCr。,0.225w/cm3。4　:0.225w/cm3、2∶1、25%,,pH8—9,1min,15min,,CODCr5。5,·1062···　　　　　　　　　　　　　　　　　　　　　　　ResourceDevelopment&Market200925(12),,CODCr50%。5　3　3.1　[10]。,Fe2+,、、。,。,,,,。3.2　,。[11]:①。。②。,,。③。,。④。、,,。4　:2∶1、25%、pH2—3、90min。,COD30%,COD10000mg/L。,,0.225w/cm3,COD20%。,,。,pH6—7,。,:2∶1、25%、0.225w/cm3、90min、pH8—9,COD50%。,pH8—9,。[12],,[13],。:[1]OlivierLefebvre,RenéMoletta.TreatmentofOrganicPollutioninIndustrialSalineWastewater:ALiteratureReview[J].WaterResearch,2006,40(20)∶3671-3683.[2].[J].,2000,18(2)∶12-16.[3]YangL,LaiCT.BiologicalTreatmentofMineralOilinaSaltyEnvironment[J].WatSciTech,2000,42(5)∶369-375.[4],,.———[J].,2002,21(6)∶594-599.[5],,,./B[J].,2008,8(2)∶58-61.[6],,.CODCr[J].,2007,24(2)∶49-52.[7],.COD[J].,2004,35(4)∶55-59.[8],,.[J].,2003,23(6)∶318-323.[9].[J].,2007,33(12)∶13-16.[10],.[J].,2002,3(4)∶69-74.[11],,,.[J].,2007,3(5)∶164-168.[12],,,.[J].,2005,6(8)∶42-46.[13],,,.[J].,2002,22(6)∶546-550.·1063·ResourceDevelopment&Market200925(12)　　　　　　　　　　　　　　　　　　　　　　　··