sequencing batch airlift reactor
Đánh giá hiệu quả xử lý của chế phẩm sanjiban microactive trong xử lý nước rỉ rác dựa trên mô hình aerotank hoạt động gián đoạn từng mẻ-sequencing batch reactor
... Demand- nhu cầu oxy sinh hóa COD: Chemical Oxygen Demand- nhu cầu oxy hóa học SBR: Sequencing Batch Reactor- bể sục khí hoạt động từng mẻ EM: effective microorganism, vi sinh vật hữu hiệu ... MicroActive trong xử lý nước rỉ rác dựa trên mô hình Aerotank hoạt động gián đoạn từng mẻ- Sequencing Batch Reactor (SBR).” 1.2. Mục đích Đánh giá hiệu quả xử lý của chế phẩm Sanjiban MicroActive ... MicroActive đối với nước rỉ rác dựa trên mô hình Aeroten hoạt động gián đoạn từng mẻ- Sequencing Batch Reactor (SBR). Đề tài được tiến hành trong 4 tháng, từ tháng 4 đến tháng 7 năm 2005. Phương...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 1 pptx
... nitrifyinggranulation in sequencing batch reactors.Appl Microbiol Biotechnol 59: 332–337.Tay,J.H.,Pan,S.,He,Y.X.,andTay,S.T.L.2004.Effectoforganicloadingrateonaerobicgranulation. I. Reactor performance.J ... degrading sequencing batch reactor. Environ Sci Technol 39: 5774–5780.Tijhuis, L., Hijman, B., Van Loosdrecht, M. C. M., and Heijnen, J. J. (1996) Inuence ofdetachment, substrate loading and reactor ... wastewatertreatment using the UASB reactor under a wide range of temperature conditions.Biotechnol Genet Eng Rev 2:253–284.Liu,Q.S.2003.Aerobicgranulationinsequencingbatchreactor.Ph.D.thesis,NanyangTechnological...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 2 pptx
... 206–215.Kwok,W.K.,Picioreanu,C.,Ong,S.L.,vanLoosdrecht,M.C.M.,Ng,W.J.,andHeijnen,J.J.1998.Inuenceofbiomassproductionanddetachmentforcesonbiolmstructuresinabiolm airlift suspension reactor. Biotechnol Bioeng 58: 400–407.Liu,Q.S.2003.Aerobicgranulationinsequencingbatchreactor.Ph.D.Thesis,NanyangTechnology University, ... (Cb)tosubstrateloadingrate(Ls)andbiolmdensityobtainedatdifferentcarrierconcentrationsandorganicloadingratesinabiolmairliftsuspensionreactor(Kwoketal.1998).Obviously,inthebiolmairliftsuspension reactor, detachment force is mainly due to particle-to-particle collision,whichisproportionaltothereactor’scarrierconcentration(Cb).It ... aerobic sludge blanket reactor. J Appl Microbiol 91: 168–175.Tay,J.H.,Liu,Q.S.,andLiu,Y.2004.Theeffectofupowairvelocityonthestructureofaerobicgranulescultivatedinasequencingbatchreactor.Water Sci...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 3 potx
... sequencing batch reactors.Appl Microbiol Biotechnol 59: 332–337.Wang,F.,Yang,F.L.,Zhang,X.W.,Liu,Y.H.,Zhang,H.M.,andZhou,J.2005.Effectsofcycletimeonpropertiesofaerobicgranulesinsequencingbatchairliftreactors.World ... in upow anaerobic sludgeblanket(UASB)reactors.Biotechnol Bioeng 49: 229–246.Shizas, L. and Bagley, D. M. 2002. Improving anaerobic sequencing batch reactor perfor-mance by modifying operational ... 493.1 INTRODUCTIONItappearsfromtheprecedingchaptersthatanumberofoperatingparametersofa sequencing batch reactor (SBR) can inuence aerobic granulation. This chapter looksintoanotherSBRoperatingparameter,cycletimeanditseffectonaerobicgranula-tion,aswellasonthecharacteristicsofaerobicgranules.CycletimeisassociatedwiththewashoutfrequencyofSBR,whichcanberegardedasakindofhydraulicselection...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 4 ppt
... ashortsettlingtimeof4to5minutestoeffectivelyselectforparticleswithasettlingvelocitylargerthan10mh–1in a sequencing batch airlift reactor (SBAR). Duringtheformationperiodofaerobicgranules,amixtureofgranules,laments,andocspresented in the reactor, while selection of ... GRANULESQin,Liu,andTay(2004a)investigatedtheeffectofsettlingtimeonaerobicgranu-lationinfourcolumnreactors,namelyR1,R2,R3,andR4,eachwithaworkingvolume of 2.5 liters, which were operated in sequencing batch mode (gure 4.1). R1toR4wererunatsettlingtimesof20,15,10,and5minutes,respectively,whiletheother ... UASB reactors was more hydrophobic thanthe nongranular sludge washed out (Mahoney et al. 1987). It seems that microbialassociationhastoadaptitssurfacepropertiestoresistbeingwashedoutfromthereactors...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 5 potx
... operation strategy for rapid and stable aerobicgranulation in both small- and large-scale sequencing batch reactors (SBRs). This53671_C005.indd 69 10/29/07 7:15:18 AM© 2008 by Taylor & Francis ... 6.REFERENCESArrojo,B.,Mosquera-Corral,A.,Garrido,J.M.,andMendez,R.2004.Aerobicgranulationwith industrial wastewater in sequencing batch reactors.Water Res 38: 3389–3399.Giokas, D. L., Daigger, G. T., von Sperling, M., Kim, ... 3821–3836.Kim,S.M.,Kim,S.H.,Choi,H.C.,andKim,I.S.2004.Enhancedaerobicoc-likegranula-tionandnitrogenremovalinasequencingbatchreactorbyselectionofsettlingvelocity.Water Sci Technol 50: 157162.Pereboom,J.H.F.1997.Strengthcharacterisationofmicrobialgranules.Water...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 6 pptx
... 285–293.Qin,L.,Liu,Y.,andTay,J.H.2004a.Selectionpressureisadrivingforceofaerobicgranula-tion in sequencing batch reactors.Process Biochem 39: 579–584.Qin,L.,Liu,Y.,andTay,J.H.2004b.Effectofsettlingtimeonaerobicgranulationin sequencing batch reactor. Biochem Eng J ... 976–981.Lin,Y.M.,Liu,Y.,andTay,J.H.2003.Developmentandcharacteristicsofphosphorus-accumulating microbial granules in sequencing batch reactors. Appl Microbiol Biotechnol62: 430–435.Liu,Q.S.2003.Aerobicgranulationinsequencingbatchreactor.Ph.D.thesis,NanyangTechnological ... granulesfrom upow anaerobic sludge blanket reactors.Water Res 24: 14731477.Li,Y.2007.Metabolicbehaviorsofaerobicgranulesdevelopedinsequencingbatchreactor.Ph.D. thesis, Nanyang Technological...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 7 docx
... anaerobic sludge blanket (UASB) reactor. Enzyme Microb Technol29: 417–427.Su,K.Z.andYu,H.Q.2005.Gasholdupandoxygentransferinanaerobicgranule-based sequencing batch reactor. Biochem Eng J 25: 201–207.Su,K.Z.andYu,H.Q.2006.Ageneralizedmodelforaerobicgranule-basedsequencing batch ... Appl Microbiol Biotechnol67: 484–488.Lubken,M.W.M.,Schwarzenbeck,N.,andWilderer,P.A.2004.Sequencingbatchreactortechnologies. In Proceedings of SBR3 Conference, February 22–26, 2004, Queensland,Australia.Mayhew,M.andStephenson,T.1997.Lowbiomassyieldactivatedsludge:Areview.Environ ... reactor. Biochem Eng J 25: 201–207.Su,K.Z.andYu,H.Q.2006.Ageneralizedmodelforaerobicgranule-basedsequencing batch reactor. I. Model development.Environ Sci Technol 40: 4703–4708.Tay,J.H.,Liu,Q.S.,andLiu,Y.2001.Microscopicobservationofaerobicgranulationinsequential...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 8 doc
... J., Heijnen, J. J., and van Loosdrecht, M. C. M. 2001. N removal in a granular sludge sequencing batch airlift reactor. Biotechnol Bioeng 75: 82–92.Beun, J. J., Hendriks, A., van Loosdrecht, M. ... been dedicated to the effect of various operatingparameters on aerobic granulation in sequencing batch reactors (SBRs) (chapters 1to7).However,verylimitedinformationiscurrentlyavailableaboutthediffusionbehaviorsofsubstancesinsideaerobicgranules.Tayetal.(2002)foundthatamodeldye ... proles was alsoignored.Beunetal.(1999)concludedthatoxygenpenetrationdepthinasequential batch airlift reactor was smaller than the acetate penetration depth. However, thispoint would be valid...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 9 pdf
... P. 2005. Physical and chemical characteristics ofgranular activated sludge from a sequencing batch airlift reactor. Process Biochem 40: 645–650.Zita, A. and Hermansson, M. 1997. Effects of ... 149–157.Qin,L.,Liu,Y.,andTay,J.H.2004.Selectionpressureisadrivingforceofaerobicgranula-tion in sequencing batch reactors. Process Biochem 39: 579–584.Quarmby,J.andForster,C.F.1995.AnexaminationofthestructureofUASBgranules.Water ... Reetal.2000;Kosetal.2003;Liuetal.2004b).Thischapterlooksattheroleofcellsurfacehydrophobicityintheformationofaerobicgranularsludgeinasequencing batch reactor (SBR).9.2 CELL SURFACE HYDROPHOBICITY9.2.1 WHAT IS HYDROPHOBICITY?Hydrophobicity...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 10 doc
... parameters, including reactor type, substrate composition, substrate loading rate, hydraulic retention time, hydro-dynamic shear force, settling time in sequencing batch reactors (SBRs), feast-famineregimeninSBRs,culturetemperature,etc.,maystimulatebacteriatosecretemoreEPS.ThecompositionofEPSisalsorelatedtothecharacteristicsofthefeedwaste-water,forexampleEPSinanaerobicgranulesgrownonprotein-richwastewaterhadhighproteinandDNAlevels,whereashighpolysaccharidescontentwasfoundinanaerobicgranulesfedbyothertypesoforganicwastewaters(BatstoneandKeller2001).Inaddition,thedeciencyofnitrogenwasfoundtofavortheproductionofEPS, ... (2005)studied the physical and chemical characteristics of aerobic granular sludge froma sequencing batch airlift reactor, and they found that the contents of proteins andcarbohydrateinEPSdecreasedfrom126.6and15.3mgg–1volatile ... al. (2006) reported that the main component of EPS in aerobic granularbiomass in a sequencing batch biolter reactor was made of proteins, and protein-richEPSwouldimprovethestabilityofgranularbiomassstructure.Asthemaincomponentofproteinsisaminoacids,whichoftencarrynegativecharges,theywillcontribute...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 12 pptx
... 462–466.Wang,Z.,Liu,L.,Yao,J.,andCai,W.2006.Effectsofextracellularpolymericsubstancesonaerobic granulation in sequencing batch reactors.Chemosphere 63: 1728–1735.Zhang,X.Q.andBishop,P.L.2003.Biodegradabilityofbiolmextracellularpolymericsubstances.Chemosphere ... the biodegradation of aerobic granule-associated EPS, fresh aerobicgranules taken from a sequencing batch reactor (SBR), without pretreatment, weresubjectedtoaerobicstarvationwithoutadditionofanexternalcarbonsourcefor20 ... extracted EPS in terms ofpolysaccharides (PS) and proteins (PN) observed in the course of the batch cultureofprestarvedaerobicgranules.ArapidbiodegradationofbothPSandPNwasobservedintherst10hoursofthecultureuntilastationaryphasewasachieved.Itcanbeseenthatnearly50%ofPSwasutilizedbyitsownproducersastheexternalcarbon...
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Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 13 potx
... microbial aggregation during UASB reactor start-up.Water Sci Technol 19: 249–260.Qin,L.,Liu,Y.,andTay,J.H.2004.Effectofsettlingtimeonaerobicgranulationina sequencing batch reactor. Biochem Eng J 21: ... acido-genicbiolms(HuangandPinder1995;Yu,Tay,andFang2001).Jiangetal.(2003)studied the effect of calcium on aerobic granulation in sequencing batch reactors(SBRs).Forthispurpose,twoSBRswereoperatedattherespectiveCa2+concentra-tionsofzeroand100mgL–1.ItwasfoundthataerobicgranuleswereformedinbothSBRs,andgranulesizeswerestabilizedataround2mmand2.8mminthecalcium-freeandcalcium-addedSBRs,respectively,after2monthsofoperation(gure13.1).These ... conversion rate of a granuleV Volume of the reactor vallSubstrate conversion rate of all granulesX Biomass concentrationm NumberofaerobicgranulesinareactorREFERENCESBatstone, D. J., Landelli,...
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control and monitoring of chemical batch reactors advances in industrial control
... tubular reactors but whose validityfor batch reactors was also proved. The criterion is discussed here with referenceto Fig. 4.8, where the temperature–concentration profiles in a batch reactor ... model-based control ofnonchain reactions in a cooled batch reactor. 2.6 Measuring the Reactor StatusThe modeling approach to the batch reactor presented in the previous sections of thischapter ... chemical reactors, which are simplified models of real reactors very usefulas a first approach to this very complex matter. The Batch Reactor (BR) is singledout among the other ideal reactors...
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