城市污水厂污水污泥的热值测定分析方法研究

311环境工程学报Vo.l3,No.11200911ChineseJournalofEnvironmentalEngineeringNov.2009高旭1马蜀2郭劲松1范莹1(11,400045;21,400016),IKAC5000,103~105e,:015kJ/g,4kJ/g,,12kJ/g,[?01452%,[?01136%Dulong,2X703A1673-9108(2009)11-1938-05DeterminationofthecalorificvalueofwastewaterandsludgefromamunicipalwastewatertreatmentplantGaoXu1MaShu2GuoJinsong1FanYing1(11KeyLaboratoryoftheThreeGorgesReservoirRegion.sEco-Environment,MinistryofEducation,CongqingUniversity,Chongqing400045,China;21ChongqingResearch&DesignInstituteofSino-CoalInternationalEngineeringGroup,Chongqing400016,China)AbstractIt.saprimarysteptoestablishthermodynamicindicesforthermodynamicanalysisofbiologicalwastewatertreatmentprocesses,unfortunatelystandardizedmeasurementmethodforchemicalenergywithinwastewaterandsludgehasnotbeendeveloped1Anautomaticcalorimetricmethodwasadoptedtodeterminecalo-rificvaluesofinfluen,teffluen,tprimarysedimentarysludge,surplussludge,mixedsludgeanddehydratedsludgesamplesfromseveralmunicipalwastewatertreatmentplants1Thesamplesweredriedat103~105edur-ingpreparingcourseandthequalitycontrolschemeofdeterminationwassetup1Referringtocalorificvaluemeasurementofcoa,lgrosscalorificvaluesofsampleswereacquired1Theresultindicatesthatthecalorificvalueofeffluentdrybasisis015kJ/g,andthatoftheinfluentisabove4kJ/g;moreover,thecalorificvaluesofthesludgesamplesareashighasabove12kJ/gwhichisclosetotheYoujianglignite.slevel1Thestandarddevia-tions(SD)ofthetestresultsarealllessthan?01452%andtherelativestandarddeviations(RSD)arenomorethan01136%1Basedontheelementanalysisofthesamesetofsamples,thecalorificvalueswerealsocalculatedwiththeDulongformula1Theresultsofthetwomethodsareprettyclose1Keywordswastewater;sludge;heatvalue;bombcalorimeter;elementanalysis:(50508046);(308020);(CSTC2009BB0029):2008-11-12;:2009-01-06:(1971~),,,,E-mai:lgaoxu@cqu1edu1cn2,,[1],[2],11:,,,,,,[3],(),,,,,,,()[4],,[5,6]Zanoni[7]COD;[8]10,Shizas[9],,,[1,10],,;,,1111IKAC5000:,,,$T,,,()112,(,,,):9515%9912%9613%7618%20071~2,7d,30,,,2h,[8],100e[7,9]Werther[11],,105e,,100~150e150e,,,,,,103~105e,,,11311311试验仪器:IKAC5000(IKA),:VarioEL(Elementar)()::19393120g;:010001g(METTLER):012~200mg,01001mg:99199%11312标准试剂:(IKA)26460J/g,(IKA)50J/:(Elementar)11313控制条件:310MPa,:1()1150e;2()850e(0e),()0120MPa,()200mL/min,()0125MPa()114,(),,,,,,Qb1ad,[12],Qgr1ad:Qgr1ad=Qb1ad-(9411Sb1ad+AQb1ad):Qgr1ad)))(J/g),Qb1ad)))(J/g),,216~310MPa,,CO2Sb1ad)))(%),4%,14160MJ/kg,Sb1ad;9411)))1%(J);A))):Qb[16170MJ/kg,A=010011617070MJ/kgQb[25110MJ/kg,A=010012Qb25110MJ/kg,A=0100163,311511511仪器的校正IKAC5000,,,013~014g,,,,,6(3d)8,26481J/g,$Q=21J/g50J/g,0109%,56GB/T213-200311512加标回收结果,114,11Table1Recoverytestresultsofbenzoicacid(g)(J)(J)(%)11052327843185826824961301554114661148614052951801338289481772911610119:(J)=(g)@26460(J/g)9518%~10119%,;0109%,[13]221132,[?01452%,[?01136%3()(121510kJ/g),2,,1,194011:2Table2Grosscalorificvaluesofsamples(kJ/g)(200711115)410250117871100111543111483111514(200711122)4148301274131450121323121859131295(200711129)4108901274121621131157121675131273(20071215)3186301226111023121356121145131743(200712126)41165012971315431218651311151317554128301356131183131077131082131684413230132401219781114831412665186301352013157801000141823:1Fig11Histogramofcalorificvalueofwastewaterandsludge1,,4~5kJ/g,015kJ/g,12kJ/g,121392kJ/g,121510kJ/g,,,15kJ/g[1]21253,,33Table3AveragepercentagesofC,N,S,HandOofsamplesfromTangjiatuoWWTP(%)CNSHO1318111743147213022185515921244144111618164261683107114241732119626144316611294184251762718731411214188201102811631991136419522174,CO2,32866kJ[14],141790kJ/kg[14],,1%~5%,,2,,CHO,,,,0165%SOx,,,,CO2H2O,,,,NOx,,[14]3,Dulong()[15]:Qgr=331930C+1441320@(H-01125O)+91300S+11494N(kJ/g):C)))C(%);19413H)))H(%);S)))S(%);O)))O(%);N)))N(%)Dulong,331930kJ/g;,1441320kJ/g;,,,Dulong,44Table4ComparisonofdeterminedcalorificvaluesandcalculatedonesofsamplesfromTangjiatuoWWTPDulong(kJ/g)(kJ/g)319124113012501251119411155111331214511182121461211313112,,,,(GB/T476-2001),,,,,,4(1)C5000,,103~105e(2),015kJ/g,4kJ/g,,12kJ/g,,(3),[1]11:,2002[2],11:,1999[3]MansonI1,LiuJ1S1,AmpueroS1,etal1Biologicalreac-tioncalorimetry:Developmentofhighsensitivitybio-calo-rimeters1ThermochimicaActa,1998,309:157~173[4],1.,2003,23(3):146~149[5]N’Ìez-RegueiraL.,RodrŠguez-A̎nJ.,ProupŠn-CastiÌ-eirasJ1,etal1Energeticevaluationofbiomassoriginatingfromforestwastebybombcalorimetry1JournalofThermalAnalysisandCalorimetry,2001,66(1):281~292[6]N’Ìez-RegueiraL.,RodrŠguez-AÌonJ.A.,ProupŠn-CastiÌeirasJ1,etal1Determinationofcalorificvaluesofforestwastebiomassbystaticbombcalorimetry1Thermo-chimicaActa,2001,371(1~2):23~31[7]ZanoniA1E1,MuellerD1L1Calorificvalueofwastewaterplantsludges1JournaloftheEnvironmentalEngineeringDivision,1982,108(1):187~195[8],,,11,1999,(3):49~51[9]ShizasI1,BagleyD1M1Experimentaldeterminationofen-ergycontentofunknownorganicsinmunicipalwastewaterstreams1J1EnergyEngineering,2004,130(2):45~53[10]DaverioE1CalorimetricassessmentofactivityinWWTPbiomass1WaterScienceandTechnology,2003,48(3):31~38[11]WertherJ1,OgandaT1Sewagesludgecombustion1Pro-gressinEnergyandCombustionScie