2712008 2 四 川 环 境SICHUANENVIRONMENT Vol.27,No.1February2008··:2007-10-22:(1981-),,,2005,。UASB宋旭燕,欧阳峰,潘法康(, 610031) :本文以某天然气净化厂检修废水为研究对象,采用上流式厌氧污泥床(UASB)反应器对该废水进行处理。当进水COD浓度已达最大时,小范围改变进水有机负荷,观察出水VFA、pH、COD及产气量的变化情况,研究负荷变化对该反应器的影响,最终确定反应器能承受的最适负荷。 :UASB;COD;:X703 :A :1001-3644(2008)01-0036-04StudyonLoadingRateVariationofWastewaterTreatmentbyUASBReactorinAGasPurificationPlantSONGXu-yan,OUYANGFeng,PANFa-kang(SchoolofEnvironmentScienceEngineeringofSouthwestJiaotongUniversity,Chengdu610031,China) Abstract:InthispaperthemaintenancewastewaterfromagaspurificationplantistreatedusingUpflowAnaerobicSludgeBlanket(UASB)reactor.WhentheinfluentCODconcentrationreachesmaximum,theloadingrateisadjustedinasmallwayandindicatorssuchasVFA,pHandCODineffluentaswellasgasproductionareobserved.Thentheeffectofvariationofloadingrateonreactorperformanceisstudiedtodeterminethemostproperloadingrateforthereactor.Keywords:UASB;COD;OrganicLoadingRate1 引 言 ,:、、。,COD;;,[1,2]。UASB、、、、、,。,,。,UASB、。UASB,UASB、。,UASB[3],UASB,,。2 材料与方法2.1 1。UASB,2.0m,0.73m3,1.35m,0.7m,0.413m3;0.5m,0.393m3;0.4m,1.0m,0.314m3。(36±1)℃。DOI:10.14034/j.cnki.schj.2008.01.0061 Fig.1 Schematicdiagramoftest2.2 pH、BOD、COD、、、、VFA、。pHpHpHpH;COD;BOD;NH3-N[4];VFA[5];-[6];-;;VSS。2.3 ,1;,UASB。360L,2。1 UASBTab.1 WaterqualityfortheUASBtestpHCODmg/LBODmg/Lmg/Lmg/Lmg/LVFAmmol/Lmmol/L8.9181053034140.581119.40.9027.8155.542 Tab.2 PropertyofinoculationsludgeSVI(mL/gTSS)(%)VSS(g/L)TSS(g/L)150.2496.515.77543.026 :()99.23%、0.12%、2--0.14%、N,N-0.03%,2-,、,1687mg/L,。,,55%[1]。2.4 、,,[1](,),COD、。102d,COD6000mg/L。、,,,“”,COD5000mg/L,9L/h。3。,,,COD6000mg/L,。3 Tab.3 AdjustmentofOrganicLoadingRate1COD6000mg/L6L/h1.2kgCOD/(m3·d)10d2COD6000mg/L7.5L/h1.5kgCOD/(m3·d)7d3COD5000mg/L9L/h1.7kgCOD/(m3·d)7d3 试验结果及分析3.1 VFAVFA,VFA,VFA[6]。371 :UASB2 Fig.2 EffectofvariationofOrganicLoadingRateoneffluentVFA 2,1.2kgCOD/(m3·d)1.5kgCOD/(m3·d),VFA,2mmol/L(3mmol/L),,;1.7kgCOD/(m3·d),VFA,244.4mmol/L,,1.7kgCOD/(m3·d),,,,,。3.2 pH,pH6.5~7.8,pH,。3 pHFig.3 EffectofvariationofOrganicLoadingRateoneffluentpH 3,1.2kgCOD/(m3·d)1.5kgCOD/(m3·d),pH,,VFA;1.7kgCOD/(m3·d),pH,pH,,,,pH。pH,pH=5,pH,,,pH。3.3 CODCOD。4 CODFig.4 EffectofvariationofOrganicLoadingRateoneffluentCOD 4,1.2kgCOD/(m3·d)1.5kgCOD/(m3·d)COD40%;1.7COD/(m3·d),COD20%,11.24%。1,CODVFA,,1.7COD/(m3·d),。3.4 5 、Fig.5 EffectofvariationofOrganicLoadingRateongasproduction ,。 5,1.2kgCOD/(m3·d),5,11,;1.5kgCOD/(m3·d)38 四川环境27,,1.2kgCOD/(m3·d),;1.7COD/(m3·d),,。4 结 论4.1 ,1.2kgCOD/(m3·d)1.5kgCOD/(m3·d),VFA、pH、COD,UASB;1.7kgCOD/(m3·d),。UASBCOD6000mg/L,7.5L/h,1.5kgCOD/(m3·d)。4.2 UASB,。4.3 ,。4.4 COD,,,。4.5 COD40%,UASB。:[1] ,,.[J].,2007,36(3):251-253.[2] , ,.[J].,2005,34(5):429-431.[3] Townsend,GToddPrince,RogerCSuflita,JosephM.Anaerobicbiodegradationofalicyclicconstituentsofgasolineandnaturalgascondensatebybacteriafromananoxicaquifer[J].FEMSMicro-biologyEcology,2004,49(1):129-135.[4] ,.()[M].,2002.[5] ()Ю·Ю·.[M].:,1989.[6] .[M].:,1998.(上接第35页)4 结果分析讨论 11#~3#,≤50.0mg,1hAA1=304.0,A2=328.0,A3=333.0,A1-3=321.7;2hBB1=308.0,B2=326.0,B3=327.0,B1-3=320.3,,A1-3=321.7B1-3=320.3A、B≤50.0mg。14#~6#,50.0mg,A:A6-A4=68.0B:B6-B4=6.2。A、B,A4-6=381.7,B4-6=328.753.0。50.0mg,。A,;B。。AB,,,6#A6=418.0,B6=330.2,A6-B6=87.8,A4-B4=26.0。,50.0mg,2h。B。2,,,①,①;≤20.0mg,1h2h。,,2.5~20.0mg,1h,2h。,≤50.0mg(①)≤20.0mg(②),,1B1#5#24.0mg/L。50mL,100mL。,。,2.5mg。5 结 论 ,,2.5~50.0mg(①)2.5~20.0mg(②),1h2h,1h。:[1] .[M].:,1989.109.[2] .[J].,2004,40(8):482.[3] .[J].,1994,16(2):61.391 :UASB