GCMS法分析焦化废水中微量有机污染物

GC/MS,(,411104):GC/MS,,:;;2(GC2MS):X502:B:100326504(2002)0320030202,,,,[1],,[2],,95%99%,,C18,,,,GC/MS11.1SHIMAZUGCMS2QP5050A;SPBTM21.30m0.32mm0.25m;Class25000K,500GC/MS,:,,(20mL/g),4501h,,,,4504h,3SUPELCOENVIC18(500mg):1.21.2.1ENVIC18:(1970-),,,5mL,,5mL,,10mL/min1.2.2(1)100mL,HCLpH2,,(2),C18,,,30s,100021500r/min5min(3)5mL,23C18,(4),,1mL,1.31.3.1(),,1.3.2:;2.6mL/min;50KPa;:101;:250;:503.5min,10/min130,1min,6/min240,2min;:EI;:70eV;:1.2kV;:40450amu;2601.3.3():0325320025©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1)GC/MS,,(2),,,NIST,1.3.41,2122,11GC/MS(%)(A)(A)(A)143112615200100100103515639156119715098935326001407924888823017348131478550906418014500010010041734306912937087598312463857127594167986754542614235988394318063962117643533352122041312384635080141896661651431636509222481988001001007517546170618517446176972.1,75,18,()76%2.2(),175461706,5174461,97%,2.3,,,,GC/MS,,,,,,:(1),[3]:,;(2),,[4];(3),,;,,2.4(GC/MS),,,(SPE),[56](LLE),[][1].[J].,1992,12(3):141146.[2].[J].,1994,(8):710.[3].[J].,1997,18(3):2022.[4].[J].,1995,15(4):385391.[5].-GC/MS[J].,2000,21(3):1718.[6].[J].,2001,17(2):2630.(:2002202207)13GC/MS,©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:ItsPreparationandApplicationinPaper2makingWastewaterTreatmentMAZi2chuan,ZHANGSu2kun(DepartmentofChemistry,HebeiNormalUniversity,Shijiazhuang050091)Abstract:FourkindsoffreshMnO2:XS21,XS22,XS23andXS24werepreparedandcharacterizedinlaboratoryscale.Comparativestudyconductedusingthemtopurifypaper2makingwastewatershowedthebestperformanceofXS21.ThenexperimentswithXS21werecarriedouttostudytheeffectsofpH,dosageandtempera2tureonremovalsofCODcrandcolority.Alsostudiedweretheopti2mumconditionforwastewatertreatmentandthemechanismoffreshMnO2topurifypaper2makingwastewater.Keywords:freshMnO2;preparation;treatment;paper2makingwastewaterAcidRaininSouthFujianArea:ItsCharacteristicsandMeasurementofNitriteSUNXiang2ying,LIUBin,LIANHui2ting,XUJin2rui(DepartmentofEnvironmentalScienceandEngineering,OverseasChineseUniversity,Quanzhou362011)Abstract:GivingabriefdescriptionofacidraininSouthFujianareawithrespecttothecharacteristicsanddistribution,thispaperhighlightssomenitritesensorsforacidrainmonitoring.Severalsensorsusingdifferentmaterialshavebeenmadeinlaboratory.Featuringhighsensitivityandstability,thesensorsareexpectedtoprovideabasictoolforestablishingautomaticacidrainmonitoringnetwork.Keywords:acidrain;nitrite;chemicallymodifiedelectrodeFormsofHeavyMetalsExistinginSedimentsofYellowRiversQingshuiHeSectionYANGHong2wei,JIAOXiao2bao,WANGXiao2li(DepartmentofChemistry,InnerMongoliaNormalUniversity,Huhhot010022)Abstract:HeavymetalsonsedimentsoftheYellowRiverwerean2alyzedbymeansofsequentialchemicalextractionintermsoftheirdistributioncharacteristicsandchemicalspeciationpertainingtotheparticlesofdifferentsizes.Theresultsindicatethatcontentofheavymetalsincreasesasparticlesizedecreases.Distributionsofvariousformsof8heavymetalsexistinginsedimentsaredescribedasfollows:water2soluble,exchangeable,bound2to2carbonate,Fe2Mnoxides,organicandresidual.Keywords:sediment;heavymetal;chemicalspeciation;theYel2lowRiverApproachestoSecurityProblemRelatingtoLong2distanceSupervisoryControlofWaterQualityWANGTao1,ZhangWen2yu2,ZHANGHong2bo1,WANGJian2jun3(1.ChineseAcademyofMechanicalScience&Technology,Beijing100044;2.DepartmentofComputerScience,PekingUniversity,Beijing100081;3.HandanIronandSteelGroupCo.Ltd.,Handan056015)Abstract:Toenforcemonitoringandcontrollingofwastewateroutfalls,long2distancesupervisorycontrolbecomesmoreandmoreimportant.Thispaperdealswiththewaystotackletherelevantproblemofsecurity,elaboratingsomecriticalissuessuchasnet2workrunningspeedundertheexistingnetworkcondition,enci2pher,decipheralgorithm,etc.Keywords:long2distancesupervisorycontrol;wastewatermoni2tor;datasecurity;D2HencipheranddecipheralgorithmDeterminationofTraceOrganicPollutantsinCoking2plantWastewaterbyGC/MSCHENHui,DAIHui(EnvironmentalMonitoringStationofXiangtanCity,Xiangtan411104)Abstract:GC/MSwasusedtoinvestigatetheorganicpollutantsremovalintheactivatedsludgeprocessfortreatingcoking2plantwastewater.AnewC18mini2columnwasappliedforconcentrationofthetraceorganicsandtheanalyticresultsofGC/MSshowedthatactivatedsludgeprocesswasefficientinremovingorganicpol2lutantsincokingeffluents.Keywords:cokingwastewater;tracepollutants;GC/MS;acti2vatedsludgeprocessAnApproachtoCost2benefitAnalysisinEnvironmentalImpactAssessmentLIGuo2bin1,LIUZhuo1,OUYANGXian2(1.ChinaUniversityofGeoscience,Wuhan430074;2.ChinaWuhuanChemicalEngineeringCompany,Wuhan430079)Abstract:Thispaperhighlightsthetheoryrelatingtoseekingforthesocialoptimumpollutant2discharginglevel,onwhichcost2ben2efitanalysisofEIAwouldbemade.Conceptandprocedureofcost2benefitanalysisarediscussedwithemphasisonsixfundamentalEnvironmentalScienceandTechnology