Wastewater Purification: Aerobic Granulation in Sequencing Batch Reactors - Chapter 6 pptx

... LLC 85 6 Selection Pressure Theory for Aerobic Granulation in Sequencing Batch Reactors Yu Liu and Zhi-Wu Wang CONTENTS 6. 1 Introduction 85 6. 2 Is Aerobic Granulation Inducible? 86 6.3 Earlier ... 92 6. 4.11 Discharge Time 92 6. 5 Main Selection Pressures of Aerobic Granulation 92 6. 6 A Selection Pressure Theory for Aerobic Granulation in SBRs 93 6. 7 Fa...

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... explanation without intent to infringe. Library of Congress Cataloging -in- Publication Data Wastewater purification : aerobic granulation in sequencing batch reactors / editor, Yu Liu. p. cm. Includes bibliographical ... acid-free paper 10 9 8 7 6 5 4 3 2 1 International Standard Book Number-13: 97 8-1 -4 20 0-5 36 7-8 (Hardcover) This book contains information obtai...

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... play an important role in the anaerobic granulation process. Thus, this chapter attempts to offer further insights intotheroleofshearforceinaerobicgranulation. 5 367 1_C002.indd 25 10/29/07 7:02:15 ... and further strengthen cell-cell interaction, while shear-stimulated extracellular polysaccharide production may play an important role in building up and maintain- ing the architecture...

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... the boundEPS.Ascomparedtothesituationatthecoreoftheaerobicgranule,thehigher densityofactivecellscanbeexpectedinthesurfacelayeroftheaerobicgranule(Toh etal.2003).Thisinturnpartiallyexplainswhyahighconcentrationofthebound EPSwasdetectedontheshelloftheaerobicgranule (chapter1 1).Infact,Tohetal. (2003)investigatedtheviabilityofmicrooraresidinginsideaerobicgranulesusing in situ DNA uorescence...

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... sludge blanket(UASB )reactors. Biotechnol Bioeng 49: 229–2 46. Shizas, L. and Bagley, D. M. 2002. Improving anaerobic sequencing batch reactor perfor - mance by modifying operational parameters. Water Res 36: 363 – 367 . Tay, J. H., Yang, ... Properties of Aerobic Granules 41 3.4 Conclusions 49 References 49 3.1 INTRODUCTION Itappearsfromtheprecedingchaptersthatanumberofoperatingp...

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... Settling Time on Aerobic Granulation 60 4.9 Effect of Settling Time on Microbial Population 62 4.10 Rationale Behind Settling Time-Initiated Aerobic Granulation 62 4.11 Conclusions 65 References 65 4.1 ... discharge pointwithinthegivensettlingtimeareretainedinthereactor;otherwise,theyare discharged. This chapter aims to offer in- depth insights into the role of settling t...

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... Granular sludge formation in upow anaerobic sludge blanket (UASB) reactors. Biotechnol Bioeng 49: 229–2 46. Wang,Z W.2007.Insightsintothemechanismofaerobicgranulationinsequencingbatch reactor. Ph.D. ... 60 80 100 SVI (mL g –1 ) 20 40 60 80 100 (V s ) min (m h –1 ) 0 .6 0.7 SVI (ml g –1 ) 40 50 60 70 80 90 80 Wastewater Purification 5 min 10 min 15 min 20 min FIGURE 5.14 Morpholo...

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... 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.20 06. Ageneralizedmodelforaerobicgranule-basedsequencing batch reactor. I. Model ... 27.0 24.1 27.2 25 .6 X (g MLSS L –1 ) 7. 56 7.59 7.57 7 .6 7 .61 7 .6 Y (mg MLSS mg –1 COD) 0.20 0.195 0.20 0.20 0.193 0.20 U s (mg COD mg –1 MLSS...

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... operating parameters on aerobic granulation in sequencing batch reactors (SBRs) (chapters 1 to7).However,verylimitedinformationiscurrentlyavailableaboutthediffusion behaviorsofsubstancesinsideaerobicgranules.Tayetal.(2002)foundthatamodel dye ... 2004). Moreover,theunbalancedmicrobialgrowthinsideaerobicgranuleshasbeensup- posedtobeduetothemassdiffusionlimitationinaerobicgranules,wh...

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... 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 ... attachment by facilitating and maintaining specic receptor-ligand inter- actions (Singleton, Masuoka, and Hazen 2001). Obviously, a sound understanding...

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