高浓度难降解有机废水低压湿式催化氧化处理

18519979ENVIRONMENTALSCIENCEVol.18,No.5Sep.,1997*　　杨润昌　　　　　　　　　　　周书天　　　(,411105)(,411105)Fenton,.,0.1-0.6MPa,3.5-10MPa;180;Fenton,H2O2COD()1.2,COD14000mg/L,COD20%,(0.1-0.6MPa,104-165)FentonCOD..,Fenton,,,.*:1997-02-26Zimpro(Wetairoxidation),,.60EisenhauerFen-ton,Fen-ton,,,[1,2].2(Lowpressurewetcatalyticoxi-dation,LPWCO),Fenton,,.11.1(1.6MPa),,98%(30%).4-LC-6A(),COD,WYX401.1.2,.,,1/2-1/3(),,,,.22.1(6000mg/L,COD=14350mg/L),(H2SO40.939mol/L,9.2%)FeSO47H2O(1.2110-3mol)H2O2.0.6MPa()1651h,,1.1,,LPWCOFenton85%,COD,H2O2COD0.2-1.4,LPWCOFenton20%-40%,,,,,H2O2COD,1H2O2COD1.LPWCO2.Fenton3.LPWCOCOD4.FentonCOD;H2O2COD1.4,FentonCODH2O2,LPWCO,2.Devlin[3],:-----CO2+H2O,,,,(0.1-0.6MPa,104-165)(5%-10%)()()[4].,,,(5%-10%).,.LPWCO,H2O2COD(0.2-0.8),Fenton,,,COD.Fenton,LPWCOCOD,40%.H2O2COD(0.8-2.0),Fenton,,,CODFenton.,H2O2:CODLPWCOFenton,20%.1aH2O2+Fe2++H2SO4COD;bH2O2+Fe2+COD.Fenton.2.2Fe2+2.1.H2O20.491mol/L,H2O2COD1.15,Fe2+,2.2Fe2+COD1.2.COD2,LPWCOFe2+,H2O2,H2SO4,,,Fe2+,98%,Fe2+COD,Fe2+,COD70%,Fe2+0.610-3,COD20%,Fe2+COD,Fe2+,(OH),.Fe2++H2OFe3+HO+HO-HO+H++eH2O(2.80V)H2O2+2H++2eH2O(72181.77V),FentonH2O2H2O2,COD.Fe2+Fe2+H2O2,,Fe2+,.,,,,LPWCOFe2+.2.3,0.60410-3mol/L,,LPWCO,3.3H2SO4COD1.2.COD3,,,FentonCOD64.4%(56%),,,COD,(),,,H2O2COD,COD.SO2-4,SO2-4,H2SO4.2.4,0.563mol/L,Fe2+0.60410-3mol/L,H2O20.491mol/L,1h,,4.4,()COD,()LPWCO,H2O2COD.40.6MPa1234COD13,,,(),CODH2O2COD.4()COD1.COD=14350mg/LH2O2COD=1.16H2SO4COD=3.432.COD=35870mg/LH2O2COD=0.481H2SO4COD=1.533.COD=71750mg/LH2O2COD=0.232H2SO4COD=0.764.COD=107600mg/LH2O2COD=0.155H2SO4COD=0.513,2.4(0.6MPa,164),1.1LPWCO/gL-1COD/mgL-1COD/mgL-1COD/%5.03450720.679.15.05158126975.410.021400515476.011.09418164382.67.5116590111293.3,LPWCO,735.4LPWCOFenton,,.LPWCO:H2O2COD()=0.2-1.0,Fe2+=0.610-3mol/L,H2SO4=0.5mol/L,COD1104mg/L,0.1-0.6MPa,104-165.Fenton,H2O2COD=0.2-0.8COD40%,,,.FentonH2O2,COD(),.(WAO),H2O2,WAO1/10,,,.1,.,,1994,15(5):882,.,,1995,3(2):353DevlinHR,HarrisII.MechanismoftheOxidationofAqueousPhenolwithDissolvedOxygen,Ind,Eng.Chem.Fundam.1984,23(4):387-3924YangRunchang,ZhouShutian.HydraulicandCarboniaingActionsofSulfuricAcidtoStrawPulpandPaperBlackLiquor.JournalofEnvironmentalSciences,1995,7(1):101-1065,..,1996,17(4):54-566FraserJAL.HydrogenPeroxideinMunicipal,LandfillandIndustrialEfluentTreatment.EfluentWaterTreat.,1984,24(5):184-188(上接第70页)8SO2SO2:1/10,:0.6L/Nm32MnSO4H2O/%Fe%pH1)950.0085-72)94.581.7861)GB1622-862)GB1622-86,Fe,.,(MnO2)Fe2+Fe3+,,.3(1)SO2MnSO4H2OSO2MnMnSO4H2O,SO2.(2),,94%.SO2..,.1.SO2.:,1966:962..:,1982:1853.,1991,2:414.SO2.:,1981:505HussA.J.Phys.Chem.,1982,86:42247418GroundwaterPollutionnearWasteAshPondsofCoal-firedPowerPlantACaseStudyforF-PollutioninPaocheAshPondsofXu-tangPowerPlant,JiangsuProvince.LiLi,HaiHuang(Dept.ofEarthSciences,NanjingUni-versity,Nanjing210093),FahuaZhu(Nan-jingEnvironmentalProtectionResearchInsti-tuteforElectricPower,Nanjing210031):Chin.J.Environ.Sci.,18(5),1997,pp.5961A2-dimensionalpollutanttransportmodelforgroundwaterpollutionintheaquifernearashpondsofXutangCoal-firedPowerPlantwasestablishedinthispaper,andselectingF-asthesimulatingfactor,thevariationsofground-waterhydraulicheadsandF-concentrationweresimulated.Atlast,thepollutedareaandpollution,degreeofF-werepredictedbythemodel.Accordingtothesimulatingresults,themodelisreasonable,reliableandpracticable.Itprovidesascientificmethodtopredictthepol-lutedareaandpollutiondegreecausedbythewasteashponds.Keywords:groundwaterpollution,pollutanttransportmodel,numericalsimulation,pollu-tionprediction,coal-firedpowerplant.AStudyofPulsedCoronaDischargesforMethleneChlorideDestruction.ZhengLeiandJiangXuanzhen(Dept.ofChemistry,ZhejiangUniversity,Hangzhou,310027):Chin.J.Envi-ron.Sci.,18(5),1997,pp.6264inthispaper,HighvoltagepulsedcoronaDis-chargeshasbeenusedfordestructionofmeth-lenechloridewithconcentrationof42.8mol/Linair.Bothpositiveandnegativepulsegen-eratorsweretestedandfoundthatthepositiveonecangivemuchhigherdestructionefficien-cythanthatonthenagetiveone.Thevalueofcapacitorsforpulseformation(Cp)andthematerialofelectrodesalsoinfluencethede-structionefficiency.Apackedbedcoronareac-torwith23mmsphericalBaTiO3pelletsasacatalystwasusedinthisexperiments.En-hancementofCH2Cl2destructionandthecon-versionof90%weredemonstrated.Itmaybeattributedtothepartialcoronadischargein-ducedbythecontactedpointsbetweenBaTiO3pellets,andthenthedensityofcoronawasen-chanced.ThecoronaandcatalystcombinedtechnologygivesabetterdestructionefficiencycomparedwiththatwithoutBaTiO3catalyst.Keywords:pulsecoronadischarge,destruc-tion,CH2Cl2,BaTiO3.ComparisonofEffectforRemovingMutagensandInoganicIonsinTapWatarbyReveseOs-mosisandNanofiltration.LiLingzhi(Dept.ofChem.,PingdingshanTeachersCollege,Henan,467002),ZhouRongandWangZhan-sheng(Dept.ofEnviron.Eng.,TsinghuaUni.,Beijing100084):Chin.J.Environ.Sci.,18(5),1997,pp.6567Inordertogetsuperiordrinkingwater,tapwaterwastreatedrespectivelybyreverseos-mosis(RO)andnanofiltration(NF)inthelaboratory.TheremovaleffectsofmutagensandionsbyRoandNFwerecompared.TheAmestestresultsshowedthatbothROandNFcouldconvertmutagenicityfrom