1粉煤灰铁屑组合处理印染废水的研究

,,(,071003):,,,COD77%95%:;;;:X703.1:A:100326504(2002)0420008202,,,,,,11.1,,,,,(Fe)FeFe2++2eE=-0.44V(C)2H++2e2[H]H2()E=0.00VHFe2+,,,1.2Fe2+,4Fe2++R-N=N-R+4H2ORNH2+RNH2+4Fe3++4OH-,4Fe+R-N=N-R+4H2ORNH2+RNH2+4Fe2++4OH-1.3Fe2+Fe3+,pHFe(OH)2Fe(OH)3:(1970-),,,,Fe2+,,COD,1.4,,,(),,1.5H+,,,H+,pHFeO+2H+Fe2++H2OO2+4H+2H2O1.6Fe2+Fe3+,,COD22.1,pH,,pH,COD;2.2pH1,2,RARCRDRB,COD825420027©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(34)ABCD132056243044354065ApH;B(min);C(%);D(%)2L9(34)(%)ABCDCOD(mgL-1)()COD11111483.75094.171.021222590.08090.664.631333525.17591.268.542123553.46092.966.852231450.14095.373.062312460.34095.372.473132712.512585.352.783213745.28090.655.393321693.615082.458.4K1204.1190.5198.7202.4K2212.2192.9189.8189.7K3166.4199.3184.2190.6R45.88.814.512.7:COD1667mgL-1,850,pH3.85ACDBpH,,K,A2B3C1D1pH4;5%;6%;40min,3,,3(%)COD(mgL-1)()COD(mgL-1)()COD11667850373.24077.695.321667850383.44077.095.331667850378.84077.395.3COD77.3%95.3%2.3,65,pH4,4,,,COD4(m/h)(min)(%)COD(mgL-1)()COD510.8813.520551.275.9413.5755.216554.780.6318640.110061.688.2227498.46070.192.9154391.75076.594.14(1),COD,(2),,,,,,[][1],.[J].,1994,7(3):5459.[2],.[J].,1995,15(3):157161.[3],.[J].,1994,(2):5962.[4],.[J].,1996,(4):3437.[5],.[J].,1998,16(2):3032.(:2002201223)9,©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.CollegeofResource,Envir.&Tourism,CapitalNormalUniversity,Beijing100037;2.WaterandSoilProtectionStationofMiyunCounty,Beijing100035;3.BeijingEnvironmentalMonitoringCenter,Beijing100035)Abstract:Investigationofnon2pointpollutioncarriedoutinthewa2tershedareaofMiyunReservoirinsuburbanBeijingindicatesthreemainkindsofnon2pointsourceloadsthreateningwaterqualityoftheReservoir:chemicalfertilizer,wastesfromanimalhusbandryandloadingfromsoilerosion.Soilerosioninparticularplaysamostimportantroleinloadsofnon2pointsource.Itisalsofoundtheva2rietyoflanduseevidentlyaffectstheintensityoflossofnutrientsandthelossofnutrients(TNandTP)inwetseasonaccountfor60%oftheannualtotalnutrientsloading.Comparedwithpointpollutionsources,whichhavebeenmostlybroughtundercontrolaroundtheReservoir,non2pointpollutionhasconstitutedapromi2nentcauseimpairingthewaterquality.Suggestionwasmadeinsofarassoilconservation,properuseofchemicalfertilizersandre2strictionsonpoultryandlivestockfarms.Keywords:watershedofMiyunReservoir;non2pointpollution;presentsituationPreparationandCo60MutagenesisofProtoplastofConstitutionalBacteriainBio2degradationSystemCHENFei2li,FANGCheng2xiang,ZANGJia2yao(SchoolofEnvironmentalScienceandResource,WuhanUniversity,Wuhan430072)Abstract:Thispaperdescribedthestudiesinvolvingprotoplastfor2mationandregenerationofconstitutionalbacteriainbio2degrada2tionsystem.Theresultsindicatethatontheconditionthatendcontentoflysozyme:1mg/mLenzymolysistime:30minutes,cellsintheearlylogstagearemostappropriateforformationandregen2erationofprotoplast.85strainswithmarkingweregainedbyCo60mutagenesis.Keywords:pseudomonasaerugiosa;sphingomonaspaucimobilis;protoplast;formation;regenerationStudyonAdsorptionandExchangeIsothermsofCu()withSurfaceSedimentsoftheYellowRiverLIBei2gang,BAIHui2ming,YUNGe,GuoBo2shu(DepartmentofChemistry,InnerMongoliaNormalUniversity,Hohhot010022)Abstract:ThisstudyfocusesontheinteractionbetweenCu2+andsurfacesedimentaswellastheeffectsoflysineacidandasparaginicacidontherelatedadsorptionandexchangeisotherms.Accordingtotheexperiment,anewtypeofisothermisobtained,whichischaracterizedbytwocurvesjoinedtogetherwithaturningpointandtwoplateaus.Calculationusingtheisothermalequationofsolidparticlesresultsintheexchangeequilibriumconstants:K1andK2,indicatingthattheexchangebetweenCu2+andsurfacesedimentintheYellowriverwatergoesintwosteps.Itisalsoshowedthatthelowlevelamino2acidintheriverwaterbooststheexchange.Keywords:copper;surfacesediment;stepwiseion2exchange,amino2acidTreatmentofDyeingandFinishingWastewaterbyAshandIronFilingsZHUHong2tao,ZHANGZhen2sheng,XUPei2yao(DepartmentofEnvironmentalEngineering,NorthChinaElectricPowerUniversity,Baoding071003)Abstract:Thispaperpresentsamethodfeaturingtheutilizationofcoalashandironfillingstotreatdyeingandfinishingwastewater.Processofthemethodisbasedonelectro2chemistry,reduction,physicaladsorptionandcoagulation,etc.TheoptimumconditionwasstudiedexperimentallyandtheresultshowedthatCODandcolorityremovalscouldattain77%and95%respectively.Keywords:coalash;ironfillings;treatment;dyeingandfinishingwastewaterModellingStudiesofChemicallyEnhancedPrimaryTreatmentSystembyPBNetworkXINGang,JIANGWen2ju,JINYan,TANQin2wen,LIUCheng2jun(EnvieonmentalEngineeringDepartment,SichuanUniversity,Chengdu610065)Abstract:Identificationofthechemicallyenhancedprimarytreat2ment(CEPT)systemwascarriedoutbymeansoftheBatchGra2dientSteepestDescentAlgorithminNeuralNetworkToolboxofMatlabŒ,wheredatagainedinlaboratorywereusedastrainingsamples,CODcrconcentrationandcostofcoagulanta