Book contents
- Frontmatter
- Dedication
- Contents
- Preface
- Abbreviations
- 1 Introduction to membrane filtration of liquids
- 2 Dead-end filtration
- 3 Crossflow microfiltration
- 4 Ultrafiltration flux theories
- 5 Ultrafiltration process analysis and design at the limiting flux
- 6 Diafiltration at the limiting flux
- 7 Ultrafiltration and diafiltration with incomplete rejection
- 8 The osmotic pressure model applied to ultrafiltration and diafiltration
- 9 Reverse osmosis and nanofiltration
- 10 Membrane fouling
- Appendix Mathematical and computational background
- Index
- References
10 - Membrane fouling
Published online by Cambridge University Press: 05 July 2013
- Frontmatter
- Dedication
- Contents
- Preface
- Abbreviations
- 1 Introduction to membrane filtration of liquids
- 2 Dead-end filtration
- 3 Crossflow microfiltration
- 4 Ultrafiltration flux theories
- 5 Ultrafiltration process analysis and design at the limiting flux
- 6 Diafiltration at the limiting flux
- 7 Ultrafiltration and diafiltration with incomplete rejection
- 8 The osmotic pressure model applied to ultrafiltration and diafiltration
- 9 Reverse osmosis and nanofiltration
- 10 Membrane fouling
- Appendix Mathematical and computational background
- Index
- References
Summary
Introduction
Membrane fouling refers to a deterioration in membrane performance due to interactions between the feed and the membrane. This typically involves an increase in membrane resistance and an increase in solute rejection. Cake formation and concentration polarisation are technically not considered to be membrane fouling processes, at least in this book. Cake formation is viewed as forming an additional resistance. Concentration polarisation is seen as reducing the driving force for filtration.
There is a vast literature on the subject of membrane fouling but despite this, membrane fouling still remains a largely empirical science. This is not surprising given the huge variation in membrane and feed characteristics that is encountered in membrane filtration processes. Furthermore, the underlying physical processes are complicated, involving solute–solute, particle–particle, solute–membrane and particle–membrane interactions. Identifying which interactions are important is usually very difficult indeed, especially when complex mixtures are involved.
- Type
- Chapter
- Information
- Membrane FiltrationA Problem Solving Approach with MATLAB, pp. 273 - 298Publisher: Cambridge University PressPrint publication year: 2013