UVFenton氧化生化法联合处理含酚废水刘琼玉

6、、。、。[1-4]。Fenton、、、、[4-6]。Fenton。Fenton《》[e-mail]。EnvironmentalScience&Technology34620116Vol.34No.6Jun.2011.UV-Fenton-[J].,2011,34(6):163-166.LiuQiong-yuLiuJun-xiaLiuYan-xiang.TreatmentofphenolicwastewaterbycombiningUV-Fentonoxidationwithbiologicaloxidation[J].EnvironmentalScience&Technology,2011,34(6):163-166.UV-Fenton-430056UV-Fenton-UV-Fenton、UV-Fenton-。UV-FentonH2O2。BOD5/CODUV-FentonH2O2BOD5/COD。UV/FentonH2O221.6%UV-Fenton-COD1306mg/L121mg/L193.5mg/L0.43mg/LCOD。UV-Fenton75%H2O2。UV-FentonX703Adoi10.3969/j.issn.1003-6504.2011.06.0371003-6504(2011)06-0163-04TreatmentofPhenolicWastewaterbyCombiningUV-FentonOxidationwithBiologicalOxidationLIUQiong-yuLIUJun-xiaLIUYan-xiangSchoolofChemistryandEnvironmentalEngineeringJianghanUniversityWuhan430056ChinaAbstractPhenolicwastewaterwastreatedbycombinedprocessofUV-Fentonoxidation-biologicaloxidation.TreatmentefficiencyofphenolicwastewaterbysingleUV-Fentonoxidationsinglebiologicaloxidationandcombinedprocesswerecompared.Resultsindicatedthateffectivedegradationofcoal-gasphenolicwastewaterwasobservedbyUV-FentonprocessbutcompletedegradationofphenolicwastewaterneedtoconsumelargenumbersofH2O2withhighcostwhichisuneconomical.Directbiologicaloxidationcannotefficienttreatcoal-gasphenolicwastewaterduetolowratioofBOD5/COD.UV-Fentonpreoxidationiseffectiveatenhancingbiodegradabilityofcoal-gasphenolicwastewaterandthebiodegradabilityofwastewaterenhancedobviouslywithincreasingdosageofH2O2inUV-Fentonpreoxidation.WhenH2O2wasaddedonly21.6%ofstoichiometriccalculatedquantitiesCODwouldreducefrom1306mg/Lto121mg/Landphenolreducedfrom193.5mg/Lto0.43mg/LbothCODandphenolofcoal-gasphenolicwastewatercansatisfynationalcontrolstandardbycombinedprocessofUV-Fentonoxidation-biologicaloxidation.Experimentalresultsshowedthat75%H2O2weresavedbycombinedprocessofUV-Fentonoxidation-biologicaloxidationcomparingwithsingleUV-Fentonprocess.KeywordsUV-Fentonoxidationbiologicaloxidationcombinedprocessphenolicwastewater34Fenton[47-8]。UV-Fenton-UV-Fenton、UV-Fenton-UV-Fenton-。11.1UV-A5B—ICODSBR721400WPHS—3CPHSPX-250B-Z。1.2。1.3UV-FentonFe2+pH3H2O229.0±4.9×102μW/cm2。CODBOD5。UV-FentonH2O2CODBOD5-H2O21hH2O2。1.4。1.54-[9]UV-ApHPHS-3CCOD5B-1CODBOD5[9]。22.1UV-FentonFentonH2O2Fe2+、pH。UV-FentonFe2+20~120mg/L、pH2.8~3.5。Fe2+20mg/LpH3.0。UV-Fenton29.0±4.9×102μW/cm2365nm60mincFe2+=20mg/LpH=3.0COD1306mg/L、193.5mg/L。UV-FentonH2O2COD1。COD1306mg/L1306mg/L2molH2O21molO2CODH2O22775mg/L。1CODUV-FentonH2O2H2O2CODH2O221.6%600mg/L98.3%COD39.0%。0.5mg/L[10]H2O232.4%900mg/LCOD100mg/L[10]H2O2100.9%2800mg/LCOD150mg/L[10]H2O286.5%2400mg/L。UV-FentonH2O2。UV-Fenton、。2.22.2.1SBRCOD400mg/L2、10h、5L。2d336h5L。7dCOD400mg/L8hCOD66mg/L。10d164612。110dSV、MLSS、SVICOD417.6mg/L6hCOD28.6mg/L92.8%。10d2。。2.2.2COD1306mg/L、193.5mg/L25%。COD3。3。8hCOD44.2%76.5%。12hCOD24hCOD439mg/L26.8mg/L。。2.3UV-FentonUV-FentonpH=3.0cFe2+=20mg/L29.0±4.9×102μW/cm260min。UV-FentonH2O22。1Table1ThecharactersofactivatedsludgeafteracclimatizationCOD/mg·L－1SV/%MLSS/mg·L－1SVI/mg·L－1COD/mg·L－1417.631543357.0628.62UV-FentonTable2EffectsofUV-Fentonpreoxidationonthebiodegradabilityofcoal-gasphenolicwastewaterUV-FentonBOD5/COD0.28。UV-FentonH2O2/mg·L－1/mg·L－1COD/mg·L－1BOD5/mg·L－1BOD5/COD[11-12]30059.310713820.365008.68903780.426003.27973940.497002.17323670.50UV-Fenton-2UV-FentonCODBOD5/CODUV-FentonH2O2。H2O218.0%500mg/LBOD5/CODUV-Fenton0.280.42H2O221.6%600mg/LBOD5/COD0.45。UV-Fenton。2.4UV-Fenton-UV-Fenton-COD4。UV-FentonH2O221.6%600mg/L193.5mg/L3.2mg/LCOD1306mg/L797mg/LBOD5/COD0.280.49。165344UV-Fenton10hCOD219mg/L0.56mg/L83.2%99.7%24hCOD121mg/L0.43mg/L。UV-FentonH2O286.5%2400mg/L1。H2O2600mg/LUV-FentonH2O22400mg/L1/475%H2O2。UV-Fenton-UV-Fenton。31UV-FentonH2O2H2O286.5%2400mg/L。2BOD5/COD0.2810d24h。3UV-FentonBOD5/CODUV-FentonH2O2H2O221.6%193.5mg/L3.2mg/LCOD1306mg/L797mg/LBOD5/COD0.280.49。4UV/Fenton-H2O221.6%COD121mg/L0.43mg/L。UV/Fenton-UV/Fenton。[][1].UV-Fenton-[J].2003304439-442448.LuYi-liangXuXin-huaWangDa-hui.ChlorphenolwastewatertreatmentbyUV-Fenton-biochemistryprocess[J].JournalofZhejiangUniversityScienceEdition2003304439-442448.inChinese[2].[J].200544136-142.LiShu-bin,ChenZhen-jun.Researchadvancesinmicro－biodegradationofcompoundofphenols[J].JournalofSouthChinaNormalUniversityNatuarlScienceEdition200544136-142.inChinese[3].[J].20023262~66.LiuQiong-yuLiTai-you.Thestudyprogressininnocuoustreatmentofphenolicwastewater[J].TechniquesandEquip－mentforEnvironmentalPollutionControl20023262-66.inChinese[4].Fenton-[J].20023852-57.JinLongWangLuo-chunZhaoYou-cai.Progressofstud－iesoncombinationofFentonagentandbiologicalprocessforwastewatertreatment[J].TechniquesandEquipmentforEn－vironmentalPollutionControl20023852-57.inChinese[5]RuppertGBauerRHeislerG.Thephoto-Fentonreactionaneffectivephotochemicalwastewatertreatmentprocess[J].J.Photochem.PhotobiolAChem19937375-78.[6],.Fenton[J].2004273105-107.ChenSheng-bin,HeShao-hua,LouJin-shengetal.Oxi－dationmechanismandapplicationofFentonreagent[J].En－vironmentalScience&Technology2004273105-107.inChinese[7].Fenton[J].20083171