高温突跃法处理城市污泥的研究李军

:0253-2468(2000)-06-0751-04　　　:X703　　　:A李　军1,陈邦林1,胡建斌1,冯立平1,沈乾民2　(1.,　200062;2.):,,,CO.,800℃.,43%,CO.:;;Studyonthemunicipalsewagesludgedisposalbytemperature-jumppro-cessLIJun,CHENBanglin,HUJianbin,FENGLiping　(TheChemicalDepartmentofEastChinaNormalUniversity,Shanghai200062)SHENQianmin　(DrainOfficeofShanghai)Abstract:ThestudyappliesTemperature-jumptechnologytodisposeofsludgeandaimstotakeflammablegasfromsludge.Theresultshowsthat,thecarbonmonoxideyieldofsludgewithamoisturecontentofabout43%isquitehigh,whichcanbedirectlyburnt.Thispaperreportsonthepossibilityofthepresenttechnology,andsuppliesbasicdatafortheappraisalofmaterialbalanceandenergybalance.Keywords:Temperature-jump;electricarcplasma;sludge:1999-09-06;:2000-03-01::(1968—),,[1],、、、(、)[2].,,,、、,、[3].,,.,(Temperature-jump),(),,.1　.105℃,650℃,,.1,,,COHP5890A.206200011　　　　　ACTASCIENTIAECIRCUMSTANTIAEVol.20,No.6Nov.,2000DOI:10.13671/j.hjkxxb.2000.06.0181　Fig.1　Schematicdiagramoftheexperimentalinstallation2　2.1　,74.3%,62.9%,15450kJ/kg.1.,600℃.,,[4],,.2N2,,,.1　Table1　Thecomponentanalysisofdrysludge,%103℃180℃300℃600℃O19.8514.2510.854.02C34.1522.257.040.44H4.791.250.560.10N2.342.631.690.16S1.540.900.710.5762.6741.2820.855.292　Table2　Thermogravimetricanalysisofdrysludge,℃,℃N2261.5—898.3313.5N2253.6—893.9313.4N2254.5—725.0350.0Air231.9—473.6320.02.2　2.2.1　　,,,,,5mm,2mm.,、,,,,,.,,;,,,、(3).,,N2,N2,.,,.,,752　　　　　　　　　　20CO.,800℃(3).3　(5mm)Table3　TheresultsoftheT-jumpprocessCO,%,kg,%,kg,m3/kg,℃,kJ128.430.17510.230.1130.08678101095239.710.18825.180.1180.08058101017343.420.18330.330.1250.10548601332441.60.20531.460.1330.0775785980549.690.22533.690.1450.06017807604　(2mm)Table4　DataoftheT-Jumpprocesswiththeimprovedfeedcompartment,%,m3/kg,℃,kJ130.780.1037701307230.780.1248001507330.780.0907901146　　3CO.,43%,,,,,,.,28%,,50%,,,.5mm2mm,,(4),,,.2　COFig.2　Effectofmoistureonthecarbonconversion2.2.2　　2CO.:,CO:CO,CO,,,,,CO,,,CO.,.,,CO,,CO.,,.2.3　:,7536　:CO、.1kg74.0%43.0%,(20℃):0.18MJ,1.23MJ,1.41MJ.:W=UI/G·t(G:75%).1kg43%,0.456kg,5.80MJ,CO0.61MJ.:Q=CpG(t-t)·T,T,G,G=3.16L/min、t=18℃、t=29℃,G=2.76L/min、t=18℃、t=48℃,:Q=4.11MJ.5　T-jump(1kg)Table5　EnergybalanceoftheT-jumpprocess,MJ,MJ1.41CO0.615.804.117.214.720.65　　:=/5,1,.1kg0.26×15048.36=3.91MJ,CO0.61MJ,15.5%.3　,,、.,,,,.,,,,N2,,,,N2,.,,.40t,250/a,,,,,,,.:[1]　DanielKC,PeiCC,SangDK,etal.TreatmentTechnologies[J].WaterEnvironmentResearch,1999,71(5):870—878[2]　HansGH.Plasmatechnology[J].EnviroSciTechnol,1986,20(11):1102—1104[3]　.[J].,1991,5:17—19[4]　.[M].:.1991.9—11754　　　　　　　　　　20