Colloid and Interface Chemistry for Water Quality Control

Qing Chang

• Publisher: Academic Press
• Year: 2016
• Print ISBN: 9780128093153
• eBook ISBN: 9780128093191
• Topic: Technologie et ingénierie
• Subtopic: Microbiologie

Colloid and Interface Chemistry for Water Quality Control provides basic but essential knowledge of colloid and interface science for water and wastewater treatment. Divided into two sections, chapters 1 to 8 presents colloid chemistry including simple history and basic concepts, diffusion and Brown Motion, sedimentation, osmotic pressure, optical properties, rheology properties, electric properties, emulsion, foam and gel, and so on; chapters 9 to provides interface chemistry theories including the surface of liquid, the surface of solution, and the surface of solid. This valuable book is the only one that presents colloid and interface chemistry from the water quality control perspective. This book was written for graduate students in the area of water treatment and environmental engineering, and it could be used as the reference for researchers and engineers in the same area.- Concise content makes this suitable for both teaching and learning- Focuses on water treatment technology and methods, links colloid and surface chemistry to water treatment applications- Not only addresses all the important physical-chemistry principles and theories, but also presents new developed knowledge on water treatment- Includes exercises, problems and solutions, which are very helpful for testing learning and understanding

Chapter 1

Brief History of Colloid and Interface Chemistry and Basic Concepts

Abstract

This chapter presents a brief history of colloid and interface chemistry as well as the basic concepts of colloid chemistry, including the origin of the term “colloid,” the classification of colloids, the dispersion degree and specific surface area of colloidal particles, the shape of colloidal particles, and the polydispersity and average size of colloidal particles. Based on these concepts, various kinds of common colloidal pollutants in natural waters are outlined; among them, ore particle, hydrous metal oxide, and humic substances are described in detail. Finally, the size spectrum of particles in natural waters and their removal from the water are discussed.

Keywords

colloid

classification

dispersion degree

specific surface area

colloid-particle shape

polydispersity

average size

natural water

Chapter Outline

1.1 Origin of the Term “Colloid” 1

1.2 Classification of the Colloidal System 2

1.3 Dispersion Degree and Specific Surface Area 4

1.4 Shape of Colloidal Particles 5

1.5 Polydispersity and the Average Size of Colloidal Particles 6

1.6 Colloidal Pollutants in Natural Waters 11

1.1. Origin of the term “colloid”

The system formed by dispersing one kind of substance in another kind of substance is referred to as a dispersion system. The former is called the dispersed phase, and the latter is the dispersion medium. For example, dispersing sodium chloride (NaCl) in water is a dispersion system. Here the sodium chloride is the dispersed phase, and the water is the dispersion medium. Generally, the dispersed phase contains particles of various sizes. The smaller the particle, the higher ...

Table of contents

• Cover
• Title page
• Table of Contents
• Copyright
• Preface
• Chapter 1: Brief History of Colloid and Interface Chemistry and Basic Concepts
• Chapter 2: Diffusion and Brownian Motion
• Chapter 3: Sedimentation
• Chapter 4: Osmotic Pressure
• Chapter 5: Optical Properties
• Chapter 6: Rheology Properties
• Chapter 7: Electrical Properties
• Chapter 8: Surface of Liquid
• Chapter 9: Surface of Solution
• Chapter 10: Surface of Solids
• Chapter 11: Emulsion, Foam, and Gel
• Appendix A
• Appendix B
• Appendix C
• Further Reading
• Index