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当前位置:首页 > 商业/管理/HR > 公司方案 > UASB反应器处理城镇有机垃圾浸出液的研究刘国涛
UASB刘国涛, 彭绪亚, 袁荣焕, 罗 伟, 周晓臣(重庆大学三峡库区生态环境教育部重点实验室,重庆400045) : 采用UASB反应器处理城镇有机垃圾经两相厌氧消化产生的浸出液。在水温为28~35℃时,采用处理城镇有机垃圾的单级厌氧消化反应器的消化污泥进行接种,38d内便完成了UASB反应器的启动。在运行期间,当进水COD为10100~11100mg/L、负荷为8.5~9.5kgCOD/(m3d)时,对COD的去除率为88%~95%,出水COD浓度为575~1609mg/L;UASB系统运行稳定,具有较强的酸、碱缓冲能力,未出现氨氮与脂肪酸的积累和抑制现象;产气量为0.19~0.44L/gCOD,CH4含量可达75%以上,具有较高的利用价值。 : 有机垃圾; 两相厌氧消化; UASB反应器; 垃圾浸出液; 产甲烷:X703.1 :A :1000-4602(2006)11-0040-05StudyonUASBReactorTreatingLeachatefromAcidogenicFermenterintheTwo-phaseAnaerobicDigestionofOFMSWLIUGuo-tao, PENGXu-ya, YUANRong-huan, LUOWei, ZHOUXiao-chen(KeyLabofThreeGorgesReservoirRegion’sEco-EnvironmentMinistryofEducation,ChongqingUniversity,Chongqing400045,China) Abstract: AstudywasconductedtoinvestigatetheperformanceoftheUpflowAnaerobicSludgeBlanket(UASB)reactortreatingleachatefromacidogenicfermenterinthetwo-phaseanaerobicdigestionoftheOrganicFractionofMunicipalSolidWaste(OFMSW).Wheninoculatedwithdigestionsludgefromone-phasedigestionreactortreatingOFMSW,theUASBreactorcanbestartedupwithin38daysintrea-tingleachateatwatertemperatureof28-35℃.TheCODremovalrateis88%-95%,andtheeffluentCODis575-1609mg/LwheninfluentCODandloadingrateare10100-11100mg/Land8.5-9.5kgCOD/(m3d)respectively.TheUASBreactorhasastableoperationandastrongabilityofthebuff-eringofacidsandalkalis.NH3-NandVFAaccumulationdoesnotoccurduringtherunningperiod.Thespecificgasproductionis0.19-0.44L/gCOD,andthemethanecontentisover75%,withveryhighapplicationvalue. Keywords: organicfractionofmunicipalsolidwaste(OFMSW); two-phaseanaerobicdiges-tion; UASBreactor; landfillleachate; producingmethane :“”(2003BA808A17-02-03) ,。19902000,750%,200490,270×104t/a,[1]。40第22卷 第11期2006年6月 中国给水排水CHINAWATERWASTEWATER Vo.l22No.11Jun.2006,。PohlandGhosh,,,,,[2]。、、[3],—(1)。1 —Fig.1 Flowchartofsequencinganaerobicandaerobicdigestionprocess,,7d3d,,,。UASB,0.3~0.5d-1。(UASB),。UASB。1 试验装置与方法1.1 UASB,120cm,11cm,8.55L。5。28~35℃,。80~110mL/min,20~30h。(SS30.4g/L,VSS17.3g/L),4.3L。,1。1 Tab.1 RawwastewaterqualityCOD/(mgL-1)VFA/(mgL-1)NH+4-N/(mgL-1)/(mgCaCO3L-1)pH3430~12110290~295064~310500~34304.2~7.31.2 COD:,HACH-COD;pH:PHS-3CpH;:;:;VFA:;:LML-2;:GASBORD-MUT(4G)。2 结果与讨论,:(1~38)(39~81)。2.1 COD、CODCOD2、3。2 、CODFig.2 VariationofinfluentandeffluentCODwithtime3 CODFig.3 VariationofCODloadandremovalratewithtime2、3,COD41第11期刘国涛,等:UASB反应器处理城镇有机垃圾浸出液的研究第22卷4000mg/L,1kgCOD/(m3d)。,8COD,17COD7905mg/L,7kgCOD/(m3d),COD1903mg/L76%。VFA,23,COD,COD。38COD8kgCOD/(m3d),COD80%,。UASB(50d)12d,(4~6)[4、5]。:①,;②,,COD80%~90%,,[6];③,,[7]。2、3,48~66,COD10100~11100mg/L、8.5~9.5kgCOD/(m3d),COD88%,95%,COD575~1609mg/L,1000mg/L。COD9.5kgCOD/(m3d)(48~57),COD,,。9.5kgCOD/(m3d),9d(58~66),。2.2 pHpH4。4 pHFig.4 VariationofpHvaluewithtime4,pH,pH(7.5~8.4),pH。2.3 5。5 Fig.5 Variationofalkalinitywithtime5:,;,713~3580mg/L,2000mg/L,2000~4000mg/L[7],、,pH。2.4 VFAVFA6。6 VFAFig.6 VariationofVFAconcentrationwithtime6,VFA,VFAVFA,。18~22,VFA2000mg/L,VFA,COD(2),(3),VFA。(32~35),VFA42第11期 中国给水排水 第22卷3000mg/L,COD,UASBVFA。UASB()[8],pH7.5,VFA,。2.5 7。7 NH3-NFig.7 VariationofNH3-Nconcentrationwithtime7,,UASB。,200mg/L。,50~200mg/L,;200~1000mg/L,[7]。,UASB。2.6 8。8 Fig.8 Variationofgasproductionandmethanecontent8,0.19~0.44L/gCOD,0.3~0.4L/gCOD,Sun[9]。CH45066%,75%,CH4,[10]。3 结论① COD10100~11100mg/L、COD8.5~9.5kgCOD/(m3d),COD88%,95%,COD575~1609mg/L,1000mg/L。② UASB,。③ VFAVFA,;UASB,VFA≤2000mg/L,;UASB,pH,VFA3000mg/L,UASB。④ ,。UASB,。⑤ UASB0.19~0.44L/gCOD,CH475%,。:[1] DeBaereL.Anaerobicdigestionofsolidwaste:State-of-the-art[J].WaterSciTechnol,2000,41(3):283-290.[2] ShinHS,HanSK,SongYC,etal.PerformanceofUASBreactortreatingleachatefromacidogenicfermenterintwo-phaseanaerobicdigestionoffoodwaste[J].Wa-terRes,2001,35(14):3441-3447.[3] ,.[J].,1996,14(2):11-14.[4] ,.UASB[J].,2002,33(6):29-31.[5] DriessnWJBM,HabetsLHA.Newdevelopmentsinthedesignofupflowanaerobicsludgebedreactors[A].2rdSpecializedIAWQConferenceonPretreatmentofIn-dustrialWastewaters[C].Greece:Athens,1996.43第11期刘国涛,等:UASB反应器处理城镇有机垃圾浸出液的研究第22卷[6] .[M].:,1996.[7] ,.[M].:,2004.[8] ,,,.[M].:,2004.[9]SunKH,SangHK,HangSS.UASBtreatmentofwastewaterwithVFAandalcoholgeneratedduringhy-drogenfermentationoffoodwaste[J].ProcessBiochem,2005,40(8):2897-2905.[10] ,.[J].,1996,12(3):46-49.:(1971- ), , , 、, 。:(023)65432172E-mail:liu-guotao@163.com:2006-02-23(上接第39页)[3] ,,,.[J].,2003,19(4):1-4[4] JarkkoH,BamfordH.Theefficiencyoftheprotein-de-pendentflocculationofflarobacteriumspissensitivetothecompositionofgrownmedium[J].ApplMicrobiolBiotechnol,1991,36(2):100-104.[5] ,.[M].:,2002.[6] ,,,.[M].:,1999.[7] ,.[M].:,1994.[8] ElaichouniA,VerschraegenG,ClaeysG,etal.Pseudo-monasaeruginosaserotype012outbreakstudiedbyarbi-traryprimerPCR[J].JClinMicrobiol,1994,32:666-671.[9] YuLY,LIQP,YaoTJ.Comparisionoftwomethodsforidentifyingactinobacteria[J].ChinJAnlibiol,2001,26(1):10-16.[10] RompreA,ServaisP,BaudartJ,etal.Detectionande-numerationofcoliformsindrinkingwater:currentmeth-odsandemergingapproaches[J].JMicrobiolMethods,2002,49(3):31-38.:(1973- ), , ,, 。:(0431)8502612 13009114297E-mail
本文标题:UASB反应器处理城镇有机垃圾浸出液的研究刘国涛
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