搜索
Vol134No142008371,2111(1,400045;2,401121),,:;,68%;,,CH1.72O0.55N0.12S0.03OnsludgeheatvalueexaminationanditsinfluencingfactorsofmunicipalwastewatertreatmentplantsChenMeng1,2,HanDawei1,JiFangying1,HanWanyu1(1.KeyLaboratoryofThreeGorgesReservoirRegionsEco2environment,MinistryofEducation,ChongqingUniversity,Chongqing400045,China;2.ChongqingMunicipalAdministrationCommittee,Chongqing401121,China)Abstract:ThesludgeheatvalueofmunicipalwastewatertreatmentplantsincentraldistrictofChongqingwasinvestigated.Combiningthevolatilecontent,ashandelementofsludge,factorsthataffectedsludgeheatvaluewasinvestigated,andthentheinfluenceofmoistureonsludgeheatvalueutili2zationwasalsodiscussed.Theexperimentshowedthattheresultsofelementanalysisandcalorimeterareaccordant.Thesludgevolatilecontentexaminationwasinfluencedbythewastewaterquality,drainagesystem,wastewatertreatingprocessandsludgefeature,andtheneffectedthesludgeheatvalue.Itwassuggestedthatthesludgecomingfromwastewatertreatmentplantsofcombineddrainagesystemanddigestedsludgewerenotfitforcombustion.Studyresultsfurtherindicatedthatwhenthesewagesludgecouldbeincineratedbyitself,themoistureshouldnotbehigherthan68%.Fromtheanalysesofsludgeelement,wefindthatalthoughthesludgevolatilecontentofeachplantaredifferent,butthestoichiometricformofelementisbasicallyconsistent,wecanroughlydenotethestoichiometricformulaofsewagesludgevolatilecontentCH1.72O0.55N0.12S0.03.Keywords:WWTPs;Sewagesludge;Heatvalue;Combustion;Volatilecontent;Sludgedisposal02005(CSTC,2005AB7030);,30,1185t/d[1],[1,2],38Vol134No142008[36],[3,7,8],,,,,,,;,11.1(HJ/T201998);(GB/T2122001);varioEL();IKAC5000()1.2,30,A2/O;,,5,511/mg/LCODCrSS335200--474170---266135-Corrousel255175A2/O-300180Orbal22.11052mm,0.6g,IKAC5000(3,),,,22/kJ/kgDS/%/kJ/kgDS686530.62224211565653.58292191548567.52229331193749.5524089715035.41201932,,2.2,(1)Q=2.3a100PV100-G-b100-G100(1)Q,kJ/kg;PV,%;G,g/100gDS,G=0;ab;a=131,b=10;a=107,b=5(GB/T2122001),,,[9]33,,;,Vol134No142008393/%/kJ/kgDS30.6267.571.81621253.5845.720.701195667.5231.640.841538649.5549.620.831096435.4162.192.407484,,,,2.3CHOS4(2)QH=4.18781C+342.5H-O8+22.5S(2)QH,kJ/kg;CHOSCHOS444/%CHONS/kJ/kgDS16.232.2313.572.261.6735.96648433.305.1716.893.192.0960.641598134.704.9822.136.171.8169.791552426.723.9620.003.841.9656.481151718.322.4617.452.931.6036.6874294,,2.42.4.1(1),(2),,,(3),CHONS;,,15,CH1.72O0.55N0.12S0.0315CHONS11001.650.630.120.03911001.860.380.080.02411001.720.480.150.02011001.780.560.120.02811001.610.710.140.0331.001.720.550.120.0302.4.2,,,,2240Vol134No142008,70%87%,,70%1,,2,1(2512kJ/kg),33,(QL)10000kJ/kg,79.9%,,100%[9,10],3500kJ/kg,3,(23000kJ/kg)68%,,,,,[10]33(1),,,(2),,,(3),,CH1.72O0.55N0.12S0.03(4),,50%60%,1.,20062-,,,..:..:,2005.593WertheraJ,OgadaT.Sewagesludgecombustion.ProgressinEnergyandCombustionScience,1999,25:551164,,,..:2004.,20045ChengHF,XuWP,LiuJL,etal.Applicationofcompostedsewagesludge(CSS)asasoilamendmentforturfgrassgrowth.EcologicalEngineering,2007,29:961046LinC,WuCH,HoHM.Recoveryofmunicipalwasteincinerationbottomashandwatertreatmentsludgetowaterpermeablepavementmaterials.WasteManagement,2005,23:197StastaP,BoranJ,BebarL,etal.Thermalprocessingofsewagesludge.AppliedThermalEngineering,2006,26:142014268,,..,2006,(1):35379,..:.2006.839310,,..:,2006&:(023)65127537E2mail:jfy@cqu.edu.cn:2007208227:2008201209