Fenton氧化曝气生物滤池处理纤维板废水的试验研究武彦巍

、。5070、、。80。、[1]。--。1000m3“++++”COD20000mg·L-1300mg·L-1。。。Fenton。11.1pH7.5COD270～330mg·L-1300mg·L-1B/C0.18～0.230.21。1.2、D-7401-W-15CI-PH-2FA1604。FeSO4·7H2O30%H2O21mol·L-1HCl1mol·L-1Ca(OH)2H2SO4K2Cr2O7Ag2SO4。。pHCI-PH-2CODBOD5[2]。1.3250mm300mm。BAF100mm2000mm3～6mm200mm1000mm。1。1.410LpHFeSO4·7H2O30%H2O2pH8.0PAM30minCOD。FentonFenton－450002Fenton-。FeSO4·7H2O0.003mol·L-1pH5.0n(H2O2)/n(Fe2+)212hFentonCOD65%BOD5/COD0.36。COD85%2.064·t-1。FentonX783.5B1000-3770(2011)[e-mail]37420114TECHNOLOGYOFWATERTREATMENTVol.37No.4Apr.,2011123DOI:10.16796/j.cnki.1000-3770.2011.04.037COD。22.1Fenton2.1.1pHA、n(H2O2)/n(Fe2+)B、FeSO4·7H2OCD41。、L16(44)[3]2。2ACDBA2C4D3B2FeSO4·7H2O0.004mol·L-1pH5n(H2O2)/n(Fe2+)6190min。2.1.2。2.1.2.1pHFeSO4·7H2O0.004mol·L-1n(H2O2)/n(Fe2+)6190minpH。pHCOD2。FentonFe2+H2O2·OH[4]。2pH2H+Fe3+Fe2+Fe2+·OHpH3～5。pHFe3+Fe2+。pH=4.0CODpH5.0pH5.0。2.1.2.2FeSO4·7H2OpH5.0n(H2O2)/n(Fe2+)6190minFeSO4·7H2OFeSO4·7H2OCOD3。3CODFe2+。Fe2+·OH[5]Fe3+COD。CODFeSO4·7H2O0.003mol·L-1。2pHCODFig.2TheeffectofpHvalueontheremovalofCOD23456781020304050607080pHCOD
%1Tab.1Thefactorsandtheleveloftheorthogonalandlevel1234AB3567416181101C/mol·L-1D/h0.0010.0020.0030.00430609012012345678910111213141516K1jK2jK3jK4jRjAB1111222233334444221.16244.60197.09124.13120.471234123412341234178.64207.48197.90204.1628.84C/mol·L-11234214334124321148.68189.86218.15234.4985.81D/h/%1234341243212143169.36197.45218.06202.3148.7031.2356.0365.0069.1061.5652.9063.5866.5650.0465.0039.0542.0035.8132.5530.2725.502Tab.2Resultsoforthogonaltestandrangeanalysis1Fig.1BAFtestflowchart
 3741242.1.2.3FeSO4·7H2O0.003mol·L-1pH5.0n(H2O2)/n(Fe2+)61COD4。4H2O2·OHCOD120minCOD。2h。2.1.2.4n(H2O2)/n(Fe2+)FeSO4·7H2O0.003mol·L-1pH5.02hn(H2O2)/n(Fe2+)n(H2O2)/n(Fe2+)COD5。5H2O2·OH。H2O2·OH·OH[6]。H2O2·OH·OH。n(H2O2)/n(Fe2+)21。2.1.2.5FentonFeSO4·7H2O0.003mol·L-1pH5.0n(H2O2)/n(Fe2+)212h。COD65%BOD5/COD0.36。2.2BAF2.2.1BAF。H2O2BAF24hH2O2BAF。2.2.2BAF。BAF2d。316～9h。CODCOD50mg·L-1[7]。17dCOD9.29%～62.21%COD。。31、6～9h3dBAFCOD。COD50mg·L-13。3。4CODFig.4TheeffectofreactiontimeontheremovalofCOD0204060801001201401601802005052545658606264666870
minCOD%5n(H2O2)/n(Fe2+)CODFig.5Theeffectofn(H2O2)/n(Fe2+)ontheremovalofCOD505560657075n
HO/n
FeCOD%1:12:14:16:18:110:112:13FeSO4·7H2OCODFig.3TheeffectofFeSO4·7H2OdosageontheremovalofCOD1.01.52.02.53.03.54.04.55.05.550556065707580FeSO7HO
mmolLCOD%/d123102.1298.54108.80COD/%40.4139.7240.7860.4359.7062.52COD/mg·L-13Tab.3BAFoperationresultsFenton－125Fenton、4。20kW·h-10.6288。2064.22.064·t-1。4Fenton。Fenton。FentonBAFCOD85%GB3544－2008。Fenton。。[1],,.[J].,2002(6):27-29.[2].[M].4.:.2002:10.[3].[M].:,2001.[4],,,.Fenton[J].,2009,(12):25-28.[5],,,.Fenton[J].,2010,3(36):93-95.[6],.Fenton[J].,2007,25(4):11-13.[7],.[M].:,2005:252-260.[8],,,.Fenton[J].,2010,4(35):68-71.[9]GB3544－2008[S].EXPERIMENTALRESEARCHONTREATMENTOFFIBREBOARDWASTEWATERBYFENTONREAGENT-BAFPROCESSWuYanwei,MaiWenning（SchoolofWaterConserwancyandEnvironmentEngineering,ZhengzhouUniversity,Zhengzhou450002,China）Abstract:Inthispaper,aerationtankeffluentoffibreboardplantwithFentonreagent-BAFtreatmentmethodisstudiedsystematically.Experimentresultshows:theoptimumremovalrateofCODreachedover65%,withthedosageofFeSO4·7H2O0.003mol·L-1,influentpH5.0,n(H2O2)/n(Fe2+)2:1,reactiontime2h,effluentBOD5/CODroseto0.36.Afteroxidation,wastewaterenterintotheBAFforbiochemicaltreatment.TheCODremovalrateofcombinedprocesscometo85%.Dayrunningcostis2.064yuan·t-1wastewater.Keywords：Fentonreagent;biologicalaerationfiltration;fiberboard;orthogonaltest;aerobiceffluent/g·L-1/t·d-10.80.50.680.840.0030.80.50.680.840.003/·t-1/·d-1500500120028025000400250816235.2754、Tab.4Typeofchemicals,consumptionandcosts374!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!APPLICATIONRESEARCHONTREATMENTOFCORNSILAGEEFFLUENTUSINGBIO-ZEOLITESYSTEMZouHaiming1,YanJiaping2,WangJianfei1,YuQunying1,LiXiaoliang1,LiYonggang3(1.AnhuiScienceandTechnologyUniversity,Fengyang233100,China;2.AnhuiScienceandTechnologyUniversity,Huainan232001,China;3.DairyFarmofFENGYANGinAnhui,Fengyang233100,China)Abstract:Incornsilageeffluent,CODandNH4+-Nareinhighconcentration,whichhascausedseriouslypollutioninsomeareas.Bio-zeolitesystem,re-movalofCODandNH4+-N,wasselectedtotreatthecornsilageeffluentindairyfarmofFENGYANG.Thefollowingresultswereobtained:itwasob-viousandstablefortheremovalofCODandNH4+-Nbybio-zeolitesystemafterthebiofilmmaturation;after23thday,theremovalefficiencyofCODandNH4+-Nwasover70%and80%.Whenthegastoliquidratiowas2:1,hydraulicretentiontimewas12h,thebiofilmhadthebestofactivationandthehighestremovalrateoforganicpollutant.TheremovalofNH4+-NwaslimitedbyorganicloadandthedecreaseofDOconcentration,organicdegra-dation,severelyinhibitedthegrowthofnitrifyingbacteria,whichtheremovalrateofNH4+-Ndecreasedto32.7%whentheconcentrationofCODin-creasedto280mg·L-1.Keywords:cornsilage;zeolite;biofilm;effluent114126