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Fenton1,2(1.,054001;2.,050091):,Fenton,Fenton:CODCr3000mgöL,pH6.0H2O2(30%)0.6%()FeSO47H2O0.2%()lh,CODcr70%,,,:Fenton;;:X787:A:1001-2141(2003)12-0025-02(Benzylpenicillin)B-,,,,,,,[1],,Fenton,pH,:2003-06-02:(1970-),,,,,:(99547012D);(2000)11.1,,,pH3.05.0,CODcr1200015000mgöL,,FeSO47H20H2O2(30%)1.2pHS-3C():THZ28821():DR2010COD(Hach)1.3100mL250mL,pH,(FeSO47H2O),(30%H2O2),,120römin,CODcr,Fenton22.1H2O2CODcrFentonH2O2Fe2+,(OH)[2]H2O2OH,1,pH=4,FeSO47H2O0.2%(,),lh,H2O2(30%)1CODcr,H2O2CODcr10.2%,H2O2,CODcr,H2O20.6%(),CODcr62.6%,H2O2,CODcrH2O2,H2O2,OH,OH,CODcrH2O2:H2O2,H2O2,[3],CODcr2.2pHCODcrFenton,,(OH),pHFe2+[2],FeSO4.7H2OFentonpH,pH,FeSO47H2O0.2%,30%H2O20.6%(,),25122003121h,pH,CODcr3068mgöL,pH121FentonpHpH234567810pH1.81.92.12.42.83.64.24.92pHCODcr12,pH=6.0,pH3,FentonCODcr,pHFe2+Fe3+,FentonpHOH,Fe2+:pH,H+,Fe3+Fe2+,,pH6.02.3CODcrFenton,OHRH,H2O2Fe2+OHpH=6.0,30%H2O20.6%,lh,(FeS47H2O),33CODcr,FeSO47H2O,CODcr10.8%,,CODcr,FeSO47H2O0.2%,CODcr65.8%,FeSO47H2O,CODcr;Fe2+H2O2OH,,FeSO47H2O0.2%2.4CODcr2,pH=6.0,FeSO47H2O0.2%,H2O2(30%)0.6%lh,CODcr2CODcrCODcr(mgöL)CODcr(mgöL)CODcr(%)274887668.13535146358.64876262846.17183466035.42,CODcr,,CODcr,,,,CODcr,,pH=6.0,lh,FeSO47H2OH2O2(30%),33CODcr(mgöL)FeSO47H2O(%)30%H2O2(%)CODcr(mgöL)CODcr(%)29540.20.686570.736120.20.7110569.447840.31.0154067.872330.51.5244566.2,,,CODcr66.2%,33.1CODcr3000mgöL,Fenton:pH=6.0,FeSO47H2O0.2%,30%H2O20.6%,lh,CODcr70%3.2,,CODcr66.2%41,..2000,9:474475.2,,.Fenton.,2000,21(3):9396.3,,.Fenton.,2001,23(5):238240.6225shrimpmariculturewastewaterPhotocatalyticDegradationofPyridineinSilicaGelCoatedTiO2SystemZhongJunbo,ShenYu,XuSuohong(DepartmentofEnvironmentalScienceandEngineering,DalianRailwayInstitute,Dalian116028)Abstract:ThispaperstudiedthepreparationofTiO2pho2tocatalystcoatedonthesilicagelsurfacebysol2geltechniqueusingtetrabutyltitanateasmaterial.InthesuspensionsystemsofsilicagelcoatedTiO2,photocatalyticdegradationofpyridine(PD)withmedicalvioletlampwasstudied.Andthevioletspectrumofpyridineanditsproductsofphotocatalyticdegra2dationwasstudied,alsotheeffectofpHvalueonthephoto2catalyticdegradationreactionwasstudied.Theresultsshowsthattheamountofcatalystis60mgö40ml,thephotocatalyticdegradationreactionisafirst2orderreaction,andnitrogeninpyridineconvertstoammonianitrogen.Thedegradationeffi2ciencyinalkaliisbetterthaninacid.TheutilizationratioofthecatalystwhichcoatedonsilicagelisseventimesofTiO2pow2ers.Keywords:TiO2;silicagel;photocatalysis;pyridine;am2monianitrogenAnalysisofRecyclingandReuseofWaterResourcesintheWater-DeficientRegionofWesternChinaLiMei,HuangTinglin,WangXiaochang(SchoolofEnvironmentalandMunicipalEngineering,XipanUniversityofArchitectureandTechnology,Xipan710055)Abstract:Inaccordancewiththecharacteristicsofhydrol2ogyandthesituationofwaterresourcesutilization,itisthecontradictoryreasonbetweenwater2shortageandwater2pollu2tionthatleadstothesituationandconstrainstheeconomicde2velopmentofthisdistrict.ItisconsideredthatwaterrecyclingandreuseisavalidwaytosolvewaterresourcecrisisinthedroughtyregionsofwesternChina.Takenmunicipalwastewa2terasarecycledwaterresource,theresearchcontentsofwaterrecyclingandreuseinthewesternregionsareputforward.Keywords:waterresources;recycling;reuse;municipalwastewater;droughtyandsemi2droughtyregionsStudyonTreatmentofBenzylpenicillinWastewaterwithFentonReagentWangChunping1,MaZichuan2(1.ChemistryDepartment,XingtaiCollege,Xingtai054001;2.InstituteofChemistry,HebeiNormalUniversity,Shijiazhuang050091)Abstract:ThemechanismsofaffectingfactorsintreatingtoxicorganicwastewatersuchasbenzylpenicllinwastewaterwithFentonreagentwereinvestigatedsystematically.Theop2timaloperatingconditionsdeterminedbyexperimentswereasfollowing:forbenzylpenicllinwastewater(CODCr=3000mgöL),pHwas6.030%H2O2was0.6%(volumefraction)FeSO47H2Owas0.2%(massfraction)reactiontimewas1h.Undertheseconditions,theCODCrremovalscouldreach70%.Itwasadevelopmentforegroundprocessforitssimpleprocessflow.Keywords:Fentonreagent;benzylpenicillinwastewater;catalyzedoxidationStudyonDecompositionofDimethodatebyUltrasonicWaveFuMin1,DingPeidao2,JiangYongsheng1,GaoYu1(1.ChongqingTechnologyandBusinessUniversity,Chongqing400033;2.ChongqingUniversity,Chongqing400044)Abstract:AtestfordecomposinglowconcentrationDimethoateinsimulatedwastewaterbyultrasonicwavewasin2troduced.Theeffectofirradiationtime,dosagesofH2O2,initialconcentrationofDimethoateandtemperatureondecompositionwereexplored.Theresultsshowthatthelongerirradiationtimeis,H2O2;inthelowerconcentrationrangeofDimethoatesolution,thedegradationefficiencyisenhancingwiththein2creaseofconcentration;andthesuitabletemperaturefordegra2dationisunder30.Keywords:Dimethoate;ultrasonicwave;degradationAnalysisofSafetyandStabilityinMunicipalSolidWasteLandfillSunJijun1,ZengZhaoming2,LuJiqiang1,CaiHesheng1(1.FacultyofEnvironment,ChinaUniversityofGeosciences,Wuhan430074;2.ShanDongWateryEngineeringCorporation,Jinan250013)Abstract:Wastelandfillinvalleyisaspecialengineering,whichusuallyhasawastedamintheextranceofvalley.Its802Vol.25No.12ChongqingEnvironmentalSciencesAbstracts