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当前位置:首页 > 建筑/环境 > 给排水/暖通与智能化 > 城市生活垃圾厌氧生物转化工艺研究龚大春
2007,Vol.24No.11 Chemistry&Bioengineering41 :湖北省教育厅重点项目(D200613006),宜昌市科技攻关项目(A2007103-1):2007-09-01:龚大春(1967-),男,湖北枝江人,博士,副教授,主要从事生物质能的研究与开发以及手性化合物的合成技术研究。E-mail:dchgong2004@163.com。,,, ,,(三峡大学艾伦麦克德尔米德再生能源研究所,湖北宜昌443000) :采用厌氧生物转化技术对城市有机生活垃圾制备沼气进行了研究。结果表明,在温度为(35±1)℃、城市生活垃圾用量为194.5g、原料与沼泥比例为1.7的条件下,4d内产气量达到2108mL,日均比产气速率为11.3mL·(gTS·d)-1,甲烷含量为68.4%。厌氧生物转化过程每隔4~6d采用分批补料方式,有利于连续产气。:城市生活垃圾;厌氧生物转化;沼气;分批补料:X705 :A :1672-5425(2007)11-0041-03 2090,17.85t,[1,2]。,。、、。[3,4]。,,,,、,。,,。1 1.1 ,(1);,;YQX-Ⅱ,;GC7980F,;,。()、Ag2SO4、HgSO4、、、pH。1.2 1. 2. 3. 4. 5.1 Fig.1 Anaerobicreactor。、。、、70%,。,1~2cm,。1.3 ,,,。1.4 YQX-Ⅱ。。1.5~2.1,25~35℃。、COD、BOD,pH:/20071142 ,。1.5 1.5.1 (TS),。,,。8%。(),24%。,(105±5)℃。=-TS=(1-)×100%1.5.2 (VS)[5]VS,(105±5)℃,600℃30min。VS=×100%1.5.3 (COD)COD,CODCOD。COD[6]。1.5.4 、,。。。1.5.5 [7]。2 2.1 ,194.5g,72h,1.5,COD、TS、VS,1。1 Tab.1 PrimaryanalysisoftheproductionofbiogasbymunicipalbiowasteCOD%TS%VS%mL·(gTS)-1mL·(gTS·d)-157.343.7547.262.027.751,COD57.3%,TS43.75%,VS47.2%,。8d2895mL,7.75mL·(gTS·d)-1,CH458.1%。,,,,,。2.2 pH(2)2 pHFig.2 ChangeofpHvaluewithanaerobicbiotransformationtime2,,pH。6dpH。。,pH。,pH7,,。2.3 194.5g,1.5、1.7、1.9、2.135℃,4d3。3,1.7,,2108mL,45.1mL·(gTS)-1,11.3mL·(gTS·d)-1。3 Fig.3 Effectoftheratiobetweenfeedandsludgeontheproductionofbiogas2.4 (4、5)4,,:/20071143 4 Fig.4 Changeofaccumulativeproductionofbiogaswithreactiontime5 Fig.5 Changeofdailyproductionofbiogaswithreactiontime,,12d,。35℃,,,。,13.9mL·(gTS·d)-1;,8.3mL·(gTS·d)-1。4~7d,,,,12d,,,16d。4d40%,6d。,68.4%,,。2.5 ,,CO230.5%、CH468.4%、1.1%。3 ,。(35±1)℃、194.5g、1.7,4d2108mL,11.3mL·(gTS·d)-1,68.4%。4~6d,。,:(35~40℃)(55~60℃)。(55±1)℃。,,、,。:[1] ,.[J].,2003,24(3):58-62.[2] .[M].:,2000:1-5.[3] ,,.[J].,2001,19(4):11-14.[4] ,.[J].,2000,(4):20-21.[5] RodriguezIglesiasJ,CastrillonPelaezL,MaranonMaisonE,etal.Biomethanizationofmunicipalsolidwasteinapilotplant[J].WatRes,2000,34(2):447-454.[5] .[M].:,1998:134-135.[6] .[M].:,2002:89-91.[7] EdelmannW.Co-digestionoforganicsolidwasteandsludgefromsewagetreatment[J].WatSciTech,2000,41(3):213-222.StudyontheTechnologyofAnaerobicBiotransformationforMunicipalBiowasteGONGDa-chun,TIANYi-hong,LIDe-ying,ZENGJing,LIRui-ping,HUANGYing-ping(AlanMacdiarmidInstituteofRenewableEnergy,ThreeGorgesUniversity,Yichang443000,China)Abstract:Thetechnologywasstudiedtoproducebiomethanethroughtheanaerobicbiotransformationu-singmunicipalbiowasteinlife.Theexperimentalresultsshowedthattheproductionofbiogaswasupto2108mL,theaveragespeedratioofgaswas11.3mL·(gTS·d)-1containing68.4%methaneundertheconditionofthetemperature(35±1)℃,theamountofmunicipalsolidwaste194.5g,theratiobetweenfeedandsludge1.7.Theanaerobicbioprocessusingbatchingfeedafter4~6daysreactionwasbeneficialtothegasproduction.Keywords:municipalbiowaste;anaerobicbiotransformation;biogas;batchingfeed
本文标题:城市生活垃圾厌氧生物转化工艺研究龚大春
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