Fenton试剂催化氧化混凝法处理焦化废水的实验研究刘红

Fenton试剂催化氧化—混凝法处理焦化废水的实验研究刘红,　周志辉,　吴克明(,　430081)　:Fenton—,。,—COD1173mg/L38.2mg/L,96.7%。,FentonpH2.5～3,。:Fenton;　;　;　:X703　　:A　　:1003-6504(2004)01-0071-03　　FentonH2O2Fe2+,·OH,,,。,30。,,、、、,、,COD,,。[1]—Fenton,,[2]。Fenton,,,。1　1.1　Fenton试剂氧化试验方法,,pH=7.81,COD1173mg/L。250mL,250mLpH,,(NH4)2Fe(SO4)2,30%H2O2,,,。。1.2　混凝沉降试验方法FentonpH,:(1964-),,,,。(,Al∶Si=1∶1,CAl=CSi=0.05mol/L)。,(150r/min)1min,(50r/min)5min,30min,COD。1.3　试验仪器pHS-2C;HH-5;DBJ-623;。2　2.1　氧化实验2.1.1　H2O26,250mL,1.5,3.0,4.5,6.0,7.5,9.0,10.5g/L30%H2O2,:[Fe2+]=0.4g/L,pH=3.0,75℃,1.5h,。,pHNaOH7.6,2.5mL。30min,,,。COD,1。1,H2O27.2～10.5g/L,COD96.7%～97.2%,Fenton。,,H2O27.2g/L。2.1.2　Fe2+·71·Fenton—　,DOI:10.19672/j.cnki.1003-6504.2004.02.030H2O27.2g/L,Fe2+,,2。2,Fe2+,·OH,;Fe2+,COD,Fe2+:(1),,;(2)Fe2+H2O2Fe3+,COD。,Fe3+Fe(OH)3,,。Fe2+0.6～0.8g/L,,H2O2Fe2+H2O2/Fe2+=12∶1～9∶1。2.1.3　pH[3],Fenton,pH2～3。,pH,3,4:pH7.81,Fenton,pH2.5～3,FentonpH2～3。,,H+:Fe3++H2O2※Fe2++HO2·+H+(1)HO2·+Fe3+※Fe2++O2+H+(2)Fenton,,,pH,Fenton,,,。,pH,(pH=7.81)Fenton。2.1.4　H2O2Fe2+7.2g/L0.6g/L,75℃,30min180min,1。1　(min)306090120150180COD(%)89.990.994.1929190.8　　1:30min,[4],COD118.2mg/L,COD89.9%。90min,,COD,,,C—C,2,COD。2.1.5　2,90min,2,,COD。,80℃。2　COD(℃)204050607080COD(%)89.991.692.192.993.895.42.2　混凝沉降实验Fenton,,、,,Fe(OH)3COD,Fe(OH)3,,。2.2.1　pH6,250mL,pH212,2.5mL。3。3　pHCODpH2.044.005.887.609.5711.95COD(%)81.187.292.395.28675.6pH3.245.115.526.817.658.24　　3,pH7.6,COD。2.2.2　NaOHFentonpH7.6,6,250mL。60mL4.5mL,2.2.1,5。　　5,,·72·　27　2　200430,COD86.4%,1mL,COD91.0%,2.5mL,COD。10.0mL/L,,pH6.8,pH,3。2.3　最佳方案和最佳效果250mL,250mL,,80℃,0.6g/LFe2+,7.2g/LH2O2,1.5h,50℃,pH7.6,2.5mL,。30min,COD,,COD38.2mg/L,96.7%,。3　(1)Fenton—,:80℃,0.6g/LFe2+7.2g/LH2O2,1.5hpH7.6,10mL/L。(2),COD1173.0mg/L38.2mg/L,,COD96.7%。(3)FentonpH2.5～3.0,,,。[][1]　,.UV+Fe2++H2O2[J].,1990,3(1):20.[2]　,.[J].,1989,9(4):49.[3]　,,.Fenton[J].,2001,34(5):76.[4]　,.Fenton[J].,2000,21(3):93.(2002-10-21;2003-01-20)(上接第47页),1991ISO14000,ISO9000,ISO14000,“”。《WTO》ISO14000。《TBT》,,。《、》《TBT》3,。WTO,、。,,WTO。ISO14000,,、。。(LCA)ISO14000,“、、,”[3]。,“、、、、、”[4]。、。,:ISO14020,ISO14021,ISO14024,2000、2001。[][1]　.[J].,1990,(2):42.[2]　..[M].:,1999,438-439.[3]　(IISD).———ISO14000[M].:,1997,77.[4]　.[M].:,2000,32.(2003-05-06;2003-08-06)·73·Fenton—　,EnvironmentalScienceandTechnologyVol.27,No.2,March2004　　　　　　　　　　　　　　　　　　　　　　　　　　　　AbstractDegradationofWastewaterContainingAnilineandNitrobenzeneUsingAdsorption-bicatalysis-hydrogenPeroxideGENGChun-xiang,ZHANGXiu-xia(CollegeofChemistryandChemicalEngineering,UniversityofPetroleum,Dongying257061)Abstract:ThisstudyfocusedontheactionofFe2+/UV/H2O2indegradationofanilineandnitrobenzene.Wastewatercontaininganilineandnitrobenzeneflowedthrougharesin(H-103)columnforprimarytreatmentbyadsorption.Theexperimentalinvestiga-tionshowedaremarkabledecompositionofanilineandnitrobenzenewithremovalsof99.7%and95.3%respectively.Keywords:adsorption;UV-bicatalysis;anilineandnitrobenzene;degradationFerrateasaCoagulantforRemovingDisinfectionByproductsandTheirPrecursorsinPotableWaterLIANGHao1,WEIChao-hai1,SHENGXuan-jun2,LIANGYun-lian2(1.InstituteofEnvironmentalScience,SouthChinaUniversityofTechnology,Guangzhou510641;2.InstituteofWaterPurificationofLogisticDepartment,GuangzhouMilitaryZone,Guangzhou510500)Abstract:Ferrateisusedasacoagulantforremovingbyproductsandtheirprecursorsinpotablewater,whichhavebeengeneratedduringthedisinfectionprocessusingchlorine.TheexperimentalstudyisconductedbasedonjartestswiththemeasurementsofTOC,THMsandTHMsFP.FerrateisaddedfollowedbydosingPACandremovalofTOCiscomparedwiththatofusingsinglePAC,indicatingtheefficacyofferrateforremovalsofTOCandothers.Thestudyshowsferrateinlieuofpre-chlorinationtoen-hancecoagulationisanidealalternativefortreatmentofrawwatercontaininghighconcentrationofalgae.Keywords:enhancedcoagulation;ferrate;pre-chlorination;disin-fectionbyproducts;precursorTreatmentofWastewaterContainingAcid-redDyebyFlyAshandFentonZHOUShan,DUDong-yun(DepartmentofChemistry,HubeiTeachersCollege,Huangshi435000)Abstract:Flyashfromacoal-firedpowerplantwasappliedwithFentonmethod,i.e.H2O2+FeSO4,fortreatingdyeingwastewa-tercontainingacid-reddyeinalaboratorybench-scale.Theexperi-mentalresultsshowedaremovalofmorethan97%forCODcrandthedecolorizationabove99%.Keywords:acidred;coagulation;flyash;FentonExperimentalStudyofFentonPlusCoagulationforTreatingCokeEffluentLIUHong,ZHOUZhi-hui,WUKe-ming(DepartmentofEnvironmentalEngineering,WuhanUniversityofScienceandTechnology,Wuhan430081)Abstract:FentonreagentandacoagulantPASS(polymericalu-minumsilicatesulfate)werebothself-preparedinlaboratoryandusedtotreatcokeplantwastewaterinabench-scaleexperiment.TheresultsshowedanexcellentreductionofCOD:from1173mg/Lto38.2mg/L.ItwasalsofoundthespecificityofFentonreagenttoadjustpHvaluesofwastewatertoarangeof2.5-3.Keywords:Fentonreagent;chemicaloxidation;flocculation/sedi-mentation;cokeplanteffluentANewMethodforTreatingWastewaterofVermicelliProductionUsingBeanAmylumasRawMaterialsSUHong1,ZHANGXiao-jie2,WANGDe-yi1,LIGang1,ZHAOMing1(1.CollegeofEnvironmentalandMaterialsEngineering,YantaiUniversity,Yantai264005;2.