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1012Vol.10No.12201612ChineseJournalofEnvironmentalEngineeringDec.2016Fe0/GAC-Fenton1231*231111.2430322.2430613.BAF243061Fe0/GACH2O2FentonH2O2、pH、HRTmFe0/mGAC。H2O2>pH>HRT>mFe0/mGACH2O2pHH2O21.2mL·L-1pH=3HRT=90minmFe0/mGAC=3COD306mg·L-194mg·L-169.2%《》GB16171-2012。X703.1A1673-9108201612-6983-05DOI10.12030/j.cjee.201508010AdvancedtreatmentofcokingwastewaterbyFe0/GAC-FentonheterogeneouscouplingprocessZHENGJun123HEQianqian1*ZHANGDewei23FANGZhiqiang1BAOHuihui1ZHANGHaitao11.SchoolofEnergyandEnvironmentAnhuiUniversityofTechnologyMaanshan243032China2.AnhuiHuaqiEnvironmentProtectionScienceandTechnologyDevelopmentCo.Ltd.Maanshan243061China3.BAFEngineeringTechnologyResearchCenterofAnhuiProvinceMaanshan243061ChinaAbstractAheterogeneousandcouplingmicro-electrolysisFentonsystemthatusesFe0/GACandH2O2wasappliedintheadvancedtreatmentofcokingwastewater.TheeffectsofH2O2dosagepHHRTandmFe0/mGACratioonCODremovalefficiencywerestudiedandtheoptimumconditionsforsuchweredeterminedbysinglefactorexperimentsandanorthogonaltest.TheresultsshowedthattheCODremovalefficiencyinitiallyin-creasedandthendecreasedorremainedstablewithincreasesofeachfactor.TheinfluenceofthesefactorsrankedasfollowsH2O2dosage>pH>HRT>mFe0/mGACratiowithH2O2dosageandpHdeemedsignificant.AttheoptimumconditionsofanH2O2dosageof1.2mL·L-1influentpHof3HRTof90minutesandmFe0/mGACratioof3theconcentrationofCODwasreducedfrom306mg·L-1to94mg·L-1whichisaremovalrateof69.2%.ThisfinalCODconcentrationmeetsthedirectdischargelimitoftheEmissionStandardofPollu-tantsforCokingChemicalIndustryGB16171-2012thathasbeensetforexistingenterprises.Keywordscokingwastewateriron-carbonmicro-electrolysiscouplingadvancedtreatment13010410232015-08-022015-11-251965—。E-mailzhengjun6642@163.com*E-mail1412843127@qq.com、、、1-3、、、4。“+A/O、A/A/O、SBR5”COD。Fe0/GACFe0、GACFe2+H、106。FentonFe2+H2O2·OH7Fe3+8。Fe0/GAC-FentonH2O2Fe2+H2O2·OHFe3+Fe2+·OHH2O2。Fe0/GAC-Fenton。。11.1COD290~330mg·L-1NH+4-N<5mg·L-1400~500pH6.74~7.45。Fe01cm。8%1h5%0.5h。GAC2mm、5mm。105℃。30%。1.21Fe0/GAC-FentonCN103880225A=2cm×5.5cmh=70cm。4750cm3。pHH2O2。pH8COD。1Fe0/GAC-FentonFig.1Schematicdiagramofself-madeFe0/GAC-Fentonreactorsystem1.3CODNH+4-NpHpHS-25pH。22.12.1.1H2O2H2O2。H2O2pH=3HRT=60minmFe0/mGAC=2H2O20.6、0.8、1.0、1.2、1.41.6mL·L-12。2H2O2CODFig.2EffectofH2O2dosageonCODremovalefficiency2H2O2COD1.2mL·L-156.2%。H2O2H2O2Fe2+489612Fe0/GAC-Fenton·OH9COD1.2mL·L-1H2O2Fe2+Fe3+10·OH·OHH2OO62H2O2COD。2.1.2pHpHH2O21.2mL·L-1HRT=60minmFe0/mGAC=2pH2、3、4、5、63。3pHCODFig.3EffectofpHonCODremovalefficiency3pH26CODpH=356.5%。pH。pH11H、FentonFe2+H2O2·OH。pH—OH、—COOH12。pHH213Fe2+·OH14Fe2+·OHpHFe2+FeOH+、Fe2O3·OH15。2.1.3HRTHRTHRT。、HRTH2O21.2mL·L-1pH=3mFe0/mGAC=2HRT30、60、90、120、150180min4。4HRTCODFig.4EffectofHRTonCODremovalefficiency4HRT90minHRTCOD90min64.2%HRTCOD90min。H、Fe2+H2O2·OHCODH+pHpHH、Fe2+Fe2+H2O2·OHCODHRT。2.1.4mFe0/mGACmFe0/mGAC。mFe0/mGACH2O21.2mL·L-1pH=3HRT=90minFe0/GAC1/2、1、2、3、45。5896105mFe0/mGACCODFig.5EffectofmFe0/mGAConCODremovalefficiency5mFe0/mGAC1/23COD56.1%69.1%mFe0/mGAC456.7%。mFe0/mGAC。mFe0/mGACH。mFe0/mGACFe2+H2O2·OHmFe0/mGACFe2+H2O2Fe2+·OH·OH16COD。2.22.2.1431。COD、。1Table1FactorsinorthogonaltestAH2O2/mL·L-1BpHCHRT/minDmFe0/mGAC11.0260221.2375331.449042.2.22A2B2C3D2H2O21.2mL·L-1pH=3HRT=90minmFe0/mGAC=3H2O2>pH>HRT>mFe0/mGAC。3H2O2pHHRTmFe0/mGAC。2Table2ResultsoforthogonaltestABCDCOD/%1111143.12122250.83133337.74212358.55223164.26231248.27313249.48321349.49332139.3k143.850.346.948.9k257.054.849.549.4k346.041.750.448.5R13.11613.0773.5230.9273Table3ResultsofanalysisofvarianceFFA296.1192225.87319.000*B264.6462201.86619.000*C20.129215.35419.000D1.31121.00019.0001.31231Fe0/GAC-FentonH2O21.2mL·L-1pH=3HRT=90minmFe0/mGAC=3。COD306mg·L-194mg·L-169.2%《》GB16171-2012。。2689612Fe0/GAC-FentonH2O2>pH>HRT>mFe0/mGACH2O2pH。1CHENTianhuHUANGXiaomingPANMinetal.Treatmentofcokingwastewaterbyusingmanganeseandmagnesiumores.JournalofHazardousMaterials20091682/3843-8472GUODongshengSHIQiantaoHEBinbinetal.Differ-entsolventsfortheregenerationoftheexhaustedactivatedcarbonusedinthetreatmentofcokingwastewater.JournalofHazardousMaterials20111862/31788-17933LIUZhijiaoYANGY.L.Cokingwastewaterphysico-chemicaltreatmenttechnologyevolvementreview.Ad-vancedMaterialsResearch2014864-86788-954..20072771094-1100RENYuanWEIChaohaiWUChaofeietal.Environ-mentalandbiologicalcharacteristicsofcokingwastewater.ActaScientiaeCircumstantiae20072771094-1110inChinese5YANGDeminYUANJianmei.Advancedtreatmentofbio-chemicaltreatedcokingwastewaterbyozonationprocess.AdvancedMaterialsResearch2013726-7312515-25206./H2O2Fenton.2015941752-1756CHENGTingLIHaisongWANGMinetal.Advancedtreatmentofpharmaceuticalwastewaterbyiron-carbonmi-cro-electrolysiscombinedwithH2O2.ChineseJournalofEnvironmentalEngineering2015941752-1756inChinese7CHULibingWANGJianhongDONGJingetal.Treat-mentofcokingwastewaterbyanadvancedFentonoxidationprocessusingironpowderandhydrogenperoxide.Chemo-sphere2012864409-4148GLD.爦AHINKAYAS.爦IRINN.Post-treatmentofcokingindustrywastewaterbytheelectro-Fentonprocess.WaterEnvironmentResearch2013855391-3969.-Fenton.201535357-61FANRongguiDONGS
本文标题:GACFenton异相耦合深度处理焦化废水
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