马尔康县生活垃圾填埋场渗滤液回喷处理设计

刘国涛1,彭绪亚1,汪立飞2,文昊深2,韩青2(1.重庆大学三峡库区生态环境教育部重点实验室,重庆400045;2.中国市政工程西南设计研究院,四川成都610081):结合当地蒸发量远大于降雨量的特点,在马尔康县生活垃圾卫生填埋场渗滤液污染控制中采用了渗滤液循环回喷处理技术,可实现在填埋运营期渗滤液不外排结合工程设计,介绍了渗滤液产量的计算方法处理系统的组成工艺设计参数运行操作方式以及构筑物设计等情况:卫生填埋场;渗滤液;循环回喷处理;水量计算:X703.1:C:1000-4602(2006)20-0030-04DesignofRecirculatedSprayingTreatmentofLeachateinSanitaryRefuseLandfillSiteinMaerkangCountyLIUGuotao1,PENGXuya1,WANGLifei2,WENHaoshen2,HANQing2(1.KeyLabofThreeGorgesReservoirRegionsEcoEnvironmentMinistryofEducation,ChongqingUniversity,Chongqing400045,China;2.SouthwestMunicipalEngineeringDesignandResearchInstituteofChina,Chengdu610081,China)Abstract:Accordingtocircumstancethattheevaporationlevelismuchmorethantheprecipitation,therecirculatedsprayingtreatmentprocessisusedfortreatingtheleachateinMaerkangsanitaryreuselandfillsite.Theleachatewillnotbedrainedoutsideintherunningperiodoflandfillsite.Throughtheprojectdesign,theleachateproductioncalculationmethod,theprocesscomposing,technicalparameters,operatingmodeandconstructionsdesignareintroduced.Keywords:sanitarylandfillsite;leachate;recirculatedsprayingtreatmen;twaterquantitycalculation:1工程概况,2180m,5301m,,,,,,,786.4mm,1057mm,636mm,24h53.5mm,1536.4mm,59,8.6!,34.8!,-17.5!,61%,125d,20042.35,27t/d∀30∀第22卷第20期2006年10月中国给水排水CHINAWATER&WASTEWATERVo.l22No.20Oct.200620152.92,33t/d,24t/d,11,10.6#104m3,2.73hm2(),1.1hm2,4,3400290027002100m22540m2渗滤液污染控制技术及选择[1~3]:;;∃,,,,,,[1],0.5%COD10g/L10%,5000m3/d,10~20m3/d,,15km,400m,,,,,[45],,,,,;,,,,,,,,3工程设计31311,(HydrologicEvaluationofLandfillPerformance)()(),,,,-HELP[67],,,,,[8]:L=P+M+S-E-Fc(1)L=P-E-R-S-(Fc-M)(2)L,m3/aP,m3/aM,m3/aS,m3/aE,m3/aR,m3/aFc,m3/aS,S=-,m3/a312%:786.4mm,155mm&:,,80%∀31∀第20期刘国涛,等:马尔康县生活垃圾填埋场渗滤液回喷处理设计第22卷2/d,73%∋:30%(:[8],4%;4.17cm/m,4.6%~5.2%(0.8~0.9t/m3),5%):[8],50%~60%(),,29.2%,33.3%~37.5%,45%~60%(),,,40%∗:GCL[8],,60L/(hm2∀d),1.8%,0.98+:[8],3%~13%,0.5m,8%313,,,,,,(1)(2):L=P+M+S-Fc(3)L=P-R(4),(1),2550m2,9.024.4m3/d1Tab.1Calculationresultsforleachateproduction/m2/m2/(m3∀d-1)/(m3∀d-1)340006.117.52550m470016009.024.42560m285034505.115.02570m352054806.618.72580m370074007.119.82590m200091003.511.20111000.51.132,(2)2Tab.2DesignqualityofleachateSS/(mg∀L-1)pHCOD/(mg∀L-1)BOD5/(mg∀L-1)NH3-N/(mg∀L-1)6006~8800040006003311Fig.1Leachaterecirculationtreatmentprocess33Tab.3Technicalparametersandrunningmode/(L∀m-2∀d-1)3.37/(∀d-1)2/(h∀-1)1~3,,,(175m3/a)/(m3∀h-1)21.1(24h)/(m3∀h-1)12.6(80%)∀32∀第20期中国给水排水第22卷34,−,,2580m4,3700m2,7400m2,2850m2,628m3(4),700m34Tab.4Calculationresultforthevolumeoftheleachateequalizationtank/mm/m3/mm/m3/m3+-12.7-2777.816218926.4-9104216225323.152151.1314263452.11641733601955108378186.238796155560159.53322297128455156.13251318104.5365154.43214491314681172432251065.1213103.12141117.9-685.6178184122.6-2768.6143170786.425881536.43196628123635%,,10.6m3,130min3.0m,2.0m,0.5m&700m3,,,,1%,22m#11m,2.9m,0.6m4结语,,,,,,,,80%2/d,73%,,(5t10d1):[1],,,.[J].,2000,16(6):20-23.[2],,.[J].,2002,3(3):65-68.[3],.[J].,1999,25(8):18-22.[4],,...[J].,1997,25(2):195-198.[5],,,.[J].,1998,20(4):23-25.[6]BouZeidaE,ElFadelM.Parametricsensitivityanalysisofleachatetransportsimulationsatlandfills[J].WasteManage,2004,24(7):681-689.[7]MesaniaFA,JenningsAA.AhydraulicbarrierdesignteachingmodulebasedonHELP3.04andHELPmodelforWindowsv2.05[J].EnvironModellSoftware,1998,13(1):1-24.[8],,,.[M].:,2001.:[phone]E-mail:[e-mail]:2006-03-29∀33∀第20期刘国涛,等:马尔康县生活垃圾填埋场渗滤液回喷处理设计第22卷