Drinking Water Treatment 4

Membranes Applied to Drinking Water and Desalination
Volume 4 Auflage
ISBN: 978-1-78630-786-6
Verlag: Wiley

Buch, Englisch, 416 Seiten, Format (B × H): 161 mm x 240 mm, Gewicht: 786 g

Today, hundreds of millions of people drink contaminated water without knowing it. Yet water treatment technologies can effectively eliminate contamination and can supply urban and rural populations with safe drinking water in a secure way.

For almost two centuries, the huge number of treatments available to guarantee water quality has grown alongside technological progress, the strengthening of industry norms and the reinforcement of consumer expectations. New treatment methods have been developed according to the advancement of knowledge and new sanitary regulations.

This five-volume book sets out to clearly present the variety of treatments available along with their performance, limitations and conditions of use as well as ways to combine them to produce safe drinking water, which is a basic need essential to everyday life.

The author shares his expertise acquired at Veolia, a company that is a world leader in water services and sanitation, desalination of sea water and the recycling of wastewater. Founded in France in 1853 to bring safe water to populations and to protect them from waterborne epidemics which ravaged cities, its history is intertwined with that of water treatment.

Autoren/Hrsg.

Gaid, Kader

Inhaltsverzeichnis

Chapter 17 Microfiltration and Ultrafiltration 1
17.1 UF and MF: cut-off 2
17.2 UF and MF: materials 6
17.2.1 Cellulose acetate 6
17.2.2 Polypropylene 7
17.2.3 Polyacrylonitrile 7
17.2.4 Polyether sulfone/polysulfone 7
17.2.5 Polyvinylidene fluoride 8
17.3 UF and MF: membrane types 8
17.4 UF and MF: implementation of membranes under pressure 11
17.4.1 Horizontal-vertical configuration 13
17.4.2 Submerged membranes 17
17.5 Filtration modes: frontal or tangential 19
17.5.1 Batch operation: filtration-backwash 21
17.5.2 Filtration direction 21
17.6 Sizing parameters: membrane selection 22
17.7 Sizing parameters: horizontal or vertical configuration 25
17.8 Sizing parameters: flow 25
17.8.1 Instantaneous flow and net flow 26
17.8.2 Transmembrane pressure 31
17.8.3 Resistance 33
17.8.4 Permeability 33
17.8.5 Principle of the calculation of the membrane surface and water losses 35
17.8.6 Pre-filters 37
17.9 Operating parameters 37
17.9.1 Evolution of the permeability 37
17.9.2 Clogging 38
17.9.3 Frequency and conditions of hydraulic and chemical backwashing 46
17.9.4 Frequency and conditions of CIP 53
17.9.5 Membrane integrity 56
17.10 MF and UF's place in a treatment process 62
17.10.1 Turbidity and SS 63
17.10.2 TOC (and UV254) 63
17.10.3 Algae 63
17.10.4 Iron and manganese 63
17.11 Combination of coagulation and UF membranes 71
17.12 Combination of PAC and UF 75
17.13 Performance and guarantees 76
17.13.1 Turbidity 76
17.13.2 Supplier warranty on the life of the membranes 86
17.14 Advantages of MF and UF 87
17.15 Veolia's experience 87
17.16 Appendix: sheets 92
17.17 References 107

Chapter 18 Nanofiltration and Reverse Osmosis 111
18.1 Membranes 112
18.1.1 Materials 112
18.1.2 Membrane element configurations 115
18.2 Principles of operation and separation 119
18.2.1 Conceptual principle 119
18.2.2 Molecular weight cut-off 124
18.3 Treatment process including high-pressure membranes and parameters to be considered 127
18.3.1 Particulates and

Über Autor(innen)

Kader Gaid is a doctor of physical sciences, specifically environmental process engineering. A professor and researcher at the Alger University of Science and Technology Houari Boumédiène (Algeria), he has been an expert in drinking water at the worldwide company Veolia for over 25 years.