搜索
44120181JOUＲNALOFBEIJINGUNIVEＲSITYOFTECHNOLOGYVol．44No．1Jan．2018UASB-A/O12111．1001242．730070－/UASB-A/OA/O．623dUASBA/O．ρCOD1237～13813mg/L5640±2567mg/LUASB-A/OρCOD280～1257mg/L546±285mg/L．ρNH+4-N148～2414mg/L1381±634mg/LUASB-A/OρNH+4-N50mg/L．A/O．15℃A/O90%．UASB-A/OU461TP308A0254－0037201801－0013－06doi10．11936/bjutxb20170300032017-03-01516680311606ＲJZA0091520221976—E-mailshw@emails．bjut．edu．cn1949—E-mailpyz@bjut．edu．cnLong-termPerformanceofSimultaneousＲemovalofOrganicandNitrogenfromMunicipalLandfillLeachateUsingUASB-A/OBiologicalSystemSUNHongwei12PENGYongzhen1WANGShuying11．NationalEngineeringLaboratoryforAdvancedMunicipalWastewaterTreatmentandＲeuseTechnologyKeyLaboratoryofBeijingforWaterQualityScienceandWaterEnvironmentＲecoveryEngineeringBeijingUniversityofTechnologyBeijing100124China2．SchoolofEnvironmentalandMunicipalEngineeringLanzhouJiaotongUniversityLanzhou730070ChinaAbstractToinvestigatethelong-termperformanceoforganicandnitrogenremovalfrommunicipallandfillwithhighammonianitrogenNH+4-Nwhichwasinvestigatedbyusingalab-scaleup-flowanaerobicsludgebedUASB-anoxic/oxicA/Obiologicalsystem．ExperimentalresultsclearlyshowthatthesimultaneousdenitrificationandmethanogenesisareobtainedintheUASBreactorandalmost100%ofdenitrificationisobtained．WhenthefeedρCODisrangedfrom1237mg/Lto13813mg/Lwithanaveragevalueof5640±2567mg/LtheeffluentρCODinthebiologicalsystemfluctuatesintherangeof280mg/Land1257mg/Lwithanaveragevalueof546±285mg/L．WhentheinfluentammonianitrogenNH+4-Nvarieswidelyfrom148mg/Lto2414mg/LtheeffluentNH+4-Nis2018alwaysbelow50mg/L．MoreovertheA/OreactorovercomesthedisadvantageouseffectofthetemperatureonthebiologicalreactionandtheefficientnitrificationanddentrificationismaintainedintheA/Oreactor．Eventhoughthetemperaturedropsbelow15℃thenitrogenremovalefficiencyintheA/Oreactorreachesabove90%．KeywordslandfillleachateUASB-A/Onitrificationmethanogenesis“”．1．．2-3．4-5．15℃6-7．8－9/、．1Peng10UASB-A/Oup-flowanearobicsludgebedUASBUASB2Im11－NH+4-N→NO－3-NNH+4-N→NO－2-N．15℃12．UASB-A/O623d．A/O．11.11．1Table1Characterticsofmunicipallandfillleachateρ/mg·L－1ρ/mg·L－1pH7.0～8.6ρCOD1500～23000ρTN838～2500ρTS2300～5800ρBOD51500～12000ρNH+4-N738～2400ρTSS1500～3200ρTOC3100～3700ρNO－3-N1.2～5.4ρ8000～11000ρIC318～237ρNO－2-N1.0～2.61.2UASB．A/O3000mg/L．1.3UASB-A/OUASB、A/O3．1．UASBA/O1UASB-A/OFig．1DiagramoftheUASB-A/Ocombinedsystem411UASB-A/O3L10L．A/O512～5．UASB30±2℃A/O．A/OdissolvedoxygenDO1.0～3.0mg/L．oxidationreductionpotentialOＲPDODO．UASB．UASBUASB．UASBNH+4-N、NO－2-N3NH+4-NNO－2-NNO－2-NNO－2-NNH+4-NUASBanammox．1.4NH+4-NNO－3-NNO－2-N、COD13．MultiN/C3000TN．WTW3420iA/OpHDOOＲP．1.5623d412～4．2．2Table2Operationalconditionofexperiment/d/LA/O/℃ρDO/mg·L－1/dpH11～115321→21.2～10.91.5～3.5258.5～7.52116～239331→16.9～31.41.0～2.0208.5～7.53240～354311→25.2～10.91.5～2.5258.5～7.54355～62333121→13.1～32.1→32.1～10.41.0～3.5208.5～7.522.1UASB-A/OCODUASB-A/OCOD2．623d4．11～115d2116～239d3240～354d4355～623d．1UASB．115dUASB-A/OρCOD400mg/L2a90%2bUASB-A/O．2～4ρCOD1237～13813mg/LCODCOD．UASB-A/O2UASB-A/OFig．2Long-termstabilityofCODremovalintheUASB-A/Obiologicalsystem512018ρCOD72.2～1252.9mg/L2a479.5mg/L．2bUASB、A/OUASB-A/OCOD．76.4%、12.8%、89.2%．UASBCOD2．A/O．UASB-A/OCODUASBCODA/O．2.2UASB-A/O3NH+4-N．1ρNH+4-N1491.2mg/L2ρNH+4-N1844.4mg/L4ρNH+4-N1789.5mg/L．3ρNH+4-N896.6mg/L．1ρNH+4-NNH+4-N．UASBNH+4-N0.33kg/m3·d→0.44kg/m3·3UASB-A/OFig．3Long-termstabilityofNH+4-NremovalintheUASB-A/Obiologicalsystemd→0.63kg/m3·d→0.91kg/m3·d．3NH+4-NUASBρNH+4-NA/OUASB．/A/ONH+4-NNO－2-N．UASB-A/OρNH+4-N21mg/LNH+4-N95%．UASB-A/O1290%90%UASB-A/O．2.3UASB-A/O4CODUASB-A/OFig．4VariationofCODandnitorgenintheUASB-A/Obiologicalsystem4．UASBCODNH+4-NA/O．NH+4-NA/OUASBNH+4-NρNH+4-N100mg/L．NH+4-NONO－3-N/NO－2-NρNH+4-N、ρNO－2-NρNO－3-N6.5、299.5、19.7mg/L．UASBA/ON2．UASBA/O100%、27.7%．UASBA/O611UASB-A/O．UASB-A/O80%．2.4UASB5UASB．UASBN2CH4．UASBpHUASBCO2HCO－3、CO2－3CO21%．521．UASB．2UASBNO－x-NA/ONO－x-NUASB．UASB．COD3.0～7.5kg/m3·dCOD7.5～12.0kg/m3·d．5UASBFig．5CorrelationbetweenorganicloadingrateandgasproductionmassintheUSAB2.5A/O6A/ONH+4-N．4121.2℃→10.9℃→216.9℃→31.4℃→325.2℃→10.9℃→413.1℃→32.1℃→6UASB-A/OFig．6VariationsofNH+4-NandtemperatureintheUASB-A/Obiologicalsystem10.4℃→→→．10.2～32.1℃NH+4-NA/O98%．2.6pHUASB-A/O7pHUASB-A/O．UASBpHCaCO3A/OUASB．7pHUASB-A/OFig．7VariationsofthepHandalkalinityintheUASB-A/ObiologicalsystempHUASBNO－x-N→N2pH．UASBpHρ7.863037mg/L8.794127mg/L．NO－x-N1g712018NO－2-N3.57g．ρNO－2-NUASB224mg/L799mg/．A/O、pH8.798.98ρ5127mg/L5667mg/L．A/OpHpHρ7.71194mg/L．1gNH+4-N7.14gρNH+4-NA/O80mg/Lρ560mg/L．A/OUASB．31UASB-A/OρCODρNH+4-N546、50mg/L90%96%．UASBA/O．2UASB80%．3、10.2～32.1℃A/O71.4%～99.2%96.9%．1．M．20057-9．2．J．201430119-13．WANGSDAIXHCAODWetal．ＲesearchoncontrolparametersforpartialnitrificationofwastewaterwithhighammonianitrogenJ．ChinaWater＆Wasterwater201430119-13．inChinese3．UASB-A/OJ．201137121836-1842．WANGSYWANGYSUNHWetal．Treatmentofactuallandfillleachatebysingle-stageUASB-A/OcombinedprocessJ．JournalofBeijingUniversityofTechnology201137121836-1842．inChinese4KIMDJLEEDIKELLEＲJ．Effectoftemperatureandfreeammoniaonnitrificationandnitriteaccumulationinlandfillleachateandanalysisofitsnitri