Water has become one of the most important issues of our time intertwined with global warming and population expansion. The management of water supplies and the conservation of water resources remains one of the most challenging yet exciting issues of our time. Water and wastewater treatment technologies are constantly evolving creating an increasingly sustainable industry that is one of the world's largest and most interdisciplinary sectors, employing chemists, microbiologists, botanists, zoologists as well as engineers, computer specialists and a range of different management professionals.


This accessible student textbook introduces the reader to the key concepts of water science and technology by explaining the fundamentals of hydrobiology, aquatic ecosystems, water treatment and supply, wastewater treatment and integrated catchment management. This fourth edition is extensively changed throughout, with new coverage of the effects of climate change, environmental assessment, sustainability and the threat to biodiversity.


The text serves as a primer for both undergraduate and graduate students in either science or engineering who have an interested in freshwater biology/hydrobiology or environmental engineering. It is also useful as a unified transitional course for those who want to span the traditional areas of engineering, biology, chemistry, microbiology or business. Professionals and consultants will also find the book a useful reference.

part I|142 pages

Water resources and ecology

chapter 1|32 pages

Water resources and demand

chapter 3|26 pages

Basic aquatic ecosystems

chapter 4|22 pages

Microorganisms in pollution control

chapter 5|30 pages

Water pollution

part II|140 pages

Water quality management and assessment

chapter 6|38 pages

Water basin management

chapter 7|30 pages

Water quality and regulation

chapter 8|70 pages

Water quality assessment

part III|240 pages

Pollution control

chapter 9|20 pages

Nature of wastewater

chapter 10|48 pages

Introduction to wastewater treatment

chapter 11|48 pages

Activated sludge

chapter 12|26 pages

Fixed-film systems

chapter 13|22 pages

Natural treatment systems

chapter 14|18 pages

Anaerobic processes

chapter 15|36 pages

Sludge treatment and disposal

chapter 16|20 pages

On-site and small-scale treatment systems

part IV|128 pages

Drinking water treatment and supply

chapter 17|28 pages

Water treatment and distribution

chapter 18|38 pages

Physico-chemical treatment processes

chapter 19|26 pages

Drinking water contamination

chapter 20|34 pages

Pathogens and their removal

part V|17 pages