UASB氧化沟工艺处理啤酒废水李敬存

UASB-李敬存　李圣增　谷艳慧(,271100)　介绍了采用UASB-氧化沟工艺处理啤酒废水的工程应用。工程运行表明,啤酒废水在进水SS、CODCr、BOD5分别为325mgL、1360mgL、810mgL的条件下,经UASB-氧化沟工艺处理后,外排废水SS、CODCr、BOD5浓度分别为60mgL、51mgL、15.1mgL。该工艺具有占地面积小,处理效果好,运行费用低等特点,能广泛应用于啤酒废水处理的实际工作中。　啤酒废水　废水处理　UASB　氧化沟　达标排放1　、、,、,、,、,。、、、、、,,。(UASB)[1],、、。[2]。UASB-,,《》。。2　30ta。、、、、。11000m3d,,12000m3d,《》(GB8978-1996)。1。　　1　mgL(pH)CODCrBOD5SSpH200010003005～119020606～910020706～93　3.1　工艺流程。　3.2　工艺流程说明、,。,UASB。UASB[1],。UASB3,、、,,。0.5～2.5mh,,。、,,,UASB,。UASB,(),UASB。[2],,,“”。,15　　　20048224DOI:10.13205/j.hjgc.2004.04.004,,,。UASB+,95%。,,pH、CODCr、BOD5、SS。,,,。2。2　CODCrmg·L-1BOD5mg·L-1SSmg·L-1+2000100030020001000180%--40UASB2000100018030010090%85905030010090902045%7080503.3　工艺特点(1),,、,;(2),80%,,;(3),,;(4),、,,;(5)、pH、CODCr。3.4　主要单元的作用3.4.1　UASB,,,,。,。,17m×56m×9m,8500m3,CODCr0.8kgm3·d,HRT17h。3.4.2　。,26m×65m×4.5m,7600m3,CODCr0.26kgm3·d,HRT15h。8,,18.5kW。3.4.3　,。,12.9m×17.5m×4.5m,1000m3。4　4,、、。,。30℃,100m3h,,,UASB,,。,UASB、pH、,UASBpH6.5～7.8。,3mgL。CODCr,CODCr80%,。3,。3。3　mgL(pH)pHSSCODCrBOD510.9927913809608.96634218.910.7630414708408.85574813.810.06518186010608.69676816.38.9924813907988.71504812.79.3630712207338.73646116.510.592948404698.75593912.4()10.133251360810()8.79605115.15　5.1　抗冲击负荷能力UASB、。CODCr、BOD5,,、。(42)16　　　20048224。,,。3　1—;2—;3—;4—;5—;6—;7—;8—;9—;10—;11—;12—;13—;14—;15—。4　,。(1),,,。(2),,,。(3)。(4),。。1　.,,1998.16(1):20～25.2　K.Siegmann,K.Sattler.AerosolFromHotCoolingOil,APossibleHealthHazard.AerosolSci,1996.27(1):493～494.3　..,1994.1(10):21～22.4　..,1992.9(5):217～219.5　XuDexuan,JieLi,YanWu,LinhuiWang,DaweiSun,ZhongyangLiu,YanbinZhang.DischargecharacteristicsandapplicationsforelectrostaticprecipitationofDCcoronawithsprayingdischargeelectrodes.Electrostatics,2003.57:217～224.6　XUDexuan.Theelectrons,ionsandelectricfieldbetweenelectrodesinnegativecoronadischarge.ProceedingsoftheThirdInternationalConferenceonAppliedElectrostatics,ShanghaiChina,1997:50.7　XuDexuan,ZhaoJianwei,DingYunzheng,GeWeili.Removalofadhesivedustsfromfluegasusingcoronadischargeswithsprayingwater.EnvironmentalScience,2003.15(4):561～568.　　130024　02　(0431)5709428E-mail　[e-mail]2003-12-02(16)5.2　对pH值适应性pH7.5～11.0。pH,pH(6.8～7.2)。pH6.8～7.2,UASB。,,,pH。5.3　对温度的适应性,21～40℃,,。,,,,。1　..:,1990.252～255.2　..,2002.9(9):16～18.　　271100　　(0634)6222420　6261612E-mail　[e-mail]2003-09-1042　　　20048224SHORT-RANGENITRIFICATION-DENITRIFICATIONINTHETREATMENTOFWASTEWATERFROMVEPLANTChanLiweietal(7)…………………………………………………………………………………………Abstract　Short-rangenitrification-denitrifcationtechniquewasemployedtoincreasethenitrificationefficiencyinthebiodenitrificationofwastewaterfromvitaminEplant.Theresultsshowedthatthenitrosationrate(NO2-NNOx-N)was18.9%undertheconditionofdissolvedoxygenbeing0.85mgL;however,theratewasonly1.13%withthedissolvedoxygenbeing26.65mgL.TheconcentrationofNO-2oftheeffluentwasincreasedfrom2.5mgLto25.6mgLthrough12hoursofanaerobictreatmentofrecyclingsludge,andtheratiobetweenthenumberofnitritebacteriaandnitratebacteriainthesludgewasalsoincreased(from0.45to2.44).Theadditionof5～10mgLClO-3totheinfluentcouldeffectivelyinhibittheactivityofnitritebacteria,buttheirnumberwasincreasedremarkably;theiractivitycouldberecoveredslowlyuponthestopofadditionandthesystemcouldregainandmaintainanitrosationrateof55%～58%after15daysofcontinuousoperation.Keywords　wastewaterfromVEplant,biodenitrification,short-rangenitrification-denitrificationandnitrosationrateSTUDYONAPPLICATIONOFMEMBRANECHEMICALTECHNOLOGYINADVANCEDTREATMENTOFPAPERMILLWASTEWATERZhangKefengetal(10)…………………………………………Abstract　Amembranechemicalreactorwasusedtotreatthesecondarybiochemicaleffluentofpapermillwastewater.Theimpactofthemainfactors,suchastemperature,pH,doseoftheoxidantAKandaerationrateontheremovalrateofCODCrwasdiscussedwhenwastewaterflowedthroughthemembranechemicalreactor.TheresultsshowedthattheremovalrateofCODCrandcolouritywere87.1%,95%,andCODCrintreatedwaterwaslowerthan100mgLontheoptimumtechnologicalcondition.Thetreatedwatercouldalsobereused.Keywords　membranechemicalreactor,AKreagent,papermillwastewater,advancedoxidationandimpingememntstreamRESEARCHONOXYGENTRANSFERCHARACTERISTICSOFNEWINTERNALCIRCULATINGBIO-FLUIDIZEDBEDREACTORLiuJinetal(12)………………………………………………………………………Abstract　Anoptimalstructurehasbeenselectedbycomparingtheoxygentransfercoefficientsofseveralstructuresforanewinternalcirculatingbio-fluidizedbedreactor.Basedonwhich,theeffectofairflow,solidcontentandaeratoronoxygentransfercharacteristicsisstudied.Theexpermentalresultshowsthatagoodoxygentransfereffectcanbeobtainedusinglargesizebaffle,shorterdistancetothebottomofthereactor,aswellaslargeamountofgas;andtheoxygentransferisalsoaffectedbysolidcontent.Keywords　internalcirculatingbio-fluidizedbed,oxygentransfercoefficient,utilizationrateofoxygenandaeratorTREATMENTOFBREWERYWASTEWATERWITHUASB-OXIDATIONDITCHPROCESSLiJingcunetal(15)………………………………………………………………………………………………………………………Abstract　UASB-oxidationditchprocesswasusedtotreatbrewerywastewater.TheplantoperationshowedthatundertheinfluentconditionsofSS=325mgL,CODCr=1360mgLandBOD5=810mgL,afterthewastewaterwa