UASB处理畜禽废水的氨化率研究房景燕

205200710POLLUTIONCONTROLTECHNOLOGYVol.20,No.5Oct.,2007UASB＊,　,　　,　　,　,　,　,　　(西南交通大学环境科学与工程学院,四川成都　610031)　:,,,UASB,,:pH,6.5～8.0,7.0;,,38℃;;,。:;;:X713;X703.1　　　:AStudyonAmmonificationRateintheTreatmentofLivestockWastewaterwithUASBFANGJing-yan,　FUYong-sheng,　ZHUJie,　XIETian,　ZHANGCheng-fu,CHENJun-jie,　QIUYu-qi,　HUADi(SchoolofEnvironmentalScienceEngineering,SouthwestJiaotongUniversity,Chengdu,Sichuan610031,China)Abstract:Livestockwastewatercontainsnotonlyhighconcentrationoforganics,butalsoaminoacid.Thispaperstudiedeffi-ciencyofUASBappliedinsuchwastewater,andtheinfluencesofenvironmentalandoperationconditionsonammoificationratewereanalyzed.ResultsshowthatsuitablepHforthebacteriumhadawiderangefrom6.5to8,andpH7wasthebest.Apositivecorre-lationwasbetweentemperatureandammonificationrate,while38℃waspreferedfromaneconomicpointofview.Ammonificationrateincreasedwiththeinfluentconcentrationofincrease,whilethere'sacontrarysituationwhentheorganicloadincrease.Keywords:UASB;ammonificationrate;ammonianitrogen:2007-06-04＊:(2006Z10-009):(1984—),,,,。　。、SS、NH3-N[1]。,。,、[2,3]。8%～10%,17;16%～19%,1[4]。1　、(/%)/%/%/%/%/%/%/%9019173.52.617459517380.40.79452016370.40.61146,。,。[5],。、SS、NH3-N,,BOD5/CODcr0.5[6-9],[10]。UASB,,N,UASB,200710.UASB·21　　　·。1　1.1　接种污泥,,。,97.823%,MLSS:1.501%,TS2.177%,VS0.676%,0.19g/L,1.06。UASB,10L。1.2　试验废水,、。2。2　　/(mg·L-1)COD2016～7917NH4-N269～971SS400～2520pH7.05～7.691842～30301.3　试验设备和条件UASB,30cm,20cm,70cm,40L,,。4。UASB1。,NH3pH,,2000mg/L。,、1　UASB。SS1500～2500mg/L。1.4　测定项目和方法(1)COD:;(2):;(3):;(4)MLSS:。2　2.1　污泥驯化阶段,,20L,COD2012mg/L,COD。,。,。COD1000mg/L,,。,COD1000mg/L,(3)。3　　/d13691215182123262932353841/(mg·L-1)201220321998207421182004201620142100158515211010998--/(mg·L-1)---------501521987104520102001/(mg·L-1)-1956187816541421128411011045972152110251345105412549962.2　提高负荷阶段41d,:,,,,。COD2。90d,COD8000mg/L,20L/d,·22　　　·　　　　　2052　COD4.0kg/(m3·d),COD1432mg/L,COD81.8%,90d,。3　3.1　温度对氨化率的影响(HRT2d),2400mg/L,SS2100mg/L,pH7.0～7.5,800mg/L,(15、25、38、45、55℃),,3。3　3,。15℃,10%;38～45℃,16%;55℃,19%。,,。15℃,,,;38℃,,,,,;55℃,,,18%;25℃,,:25℃,;45℃,,45℃,,38℃。3.2　进水pH对氨化率的影响、、SS、3.1,35～38℃、pH6.0～8.5,4。4　pH4,pH,。pH6.0～8.5,15%,,pH7.0。,pH,,pH,pH,,。3.3　进水浓度对氨化率的影响、、SS、pH、3.2,200mg/L～800mg/L,5。5,,270mg/L,7.18%;450mg/L,200710.UASB·23　　　·5　10%;730mg/L,15.5%。,,。,,。3.4　有机负荷对氨化率的影响、、SS、pH、、3.2,COD0.9～3.5kg/(m3·d),6。6　6。0.9kg/(m3·d)3.5kg/(m3·d),UASB18%13%,。,,,,,,。,,;COD、,。4　　,UASB,:(1)UASB,,,,COD。(2)UASB,,,,。(3)UASB,。pH,6.5～8.0,7.0;,,38℃;;,。[][1]　　,,.[M].:,2002.221.[2]　,,,.[M].:,2002.[3]　,.[M].:,1998.[4]　,.[M].:,2004.19-20.[5]　.[M].:,1998.[6]　.[J].,1998(2):32-34.[7]　,,,.[J].,2002,18(3):92-94.[8]　.--[J].,1998,16(4):36-38.[9]　.[J].,1995,13(3):24-25.[10]　.[M].:,2002.138,152.