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发表于 2007-11-12 11:16:25
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Settleability Problems and Loss of Solids in the Activated Sludge Process
Michael H. Gerardi
Copyright © 2002 by John Wiley & Sons, Inc.
PART I OVERVIEW 1
1 The Activated Sludge Process 3
2 Floc Formation 15
3 A Floc Formation Model 21
4 Interruption of Floc Formation 33
PART II SETTLEABILITY PROBLEMS AND LOSS OF SOLIDS 37
5 Introduction 39
6 Undesired Filamentous Growth 43
7 Nutrient-Deficient Floc Particles 53
8 Denitrification 63
9 Sheared Floc Particles 69
10 Dispersed Floc Particles 77
11 Heavy Metals and Congealed Floc Particles 83
12 Low Dissolved Oxygen Concentration 93
13 Young Sludge Age 99
14 Floc Particles Lost Through Sludge Aging
15 Slug Discharge of Soluble cBOD
16 Viscous Bulking or Zoogloeal Growth
17 Increase in Percent MLVSS
18 Colloidal Floc Particles
19 Temperature
PART III FOAM AND SCUM
20 Production and Accumulation of Foam and Scum
21 Identification of Foam
22 Controlling Foam Production and Accumulation
PART IV SETTLEABILITY TESTING
23 Settleability Testing and Settling Rate
24 Settleability Testing: Microscopic Analyses
APPENDIX I F/M, HRT, MCRT, MLVSS, SLUDGE AGE, SVI
APPENDIX II MICROSCOPIC TECHNIQUES |
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