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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 Water Science and Technology a useful reference.
PART I. Water resources and ecology
1 Water resources and demand
2 Factors determining the distribution of animals and plants in freshwaters
3 Basic aquatic ecosystems
4 Microorganisms in pollution control
5 Water pollution
PART II. Water quality management and assessment
6 Water basin management
7 Water quality and regulation
8 Water quality assessment
PART III. Pollution control
9 Nature of wastewater
10 Introduction to wastewater treatment
11 Activated sludge
12 Fixed-film systems
13 Natural treatment systems
14 Anaerobic processes
15 Sludge treatment and disposal
16 On-site and small-scale treatment systems
PART IV. Drinking water treatment and supply
17 Water treatment and distribution
18 Physico-chemical treatment processes
19 Drinking water contamination
20 Pathogens and their removal
PART V. Sustainability
21 Sustainability principles in water management
Nick Gray is Director of the Trinity Centre for the Environment at Trinity College Dublin. He has worked primarily in the area of biological wastewater treatment for thirty years, working mainly on full-scale treatment systems, especially the design and operation of reactor processes.
"A good integral overview on the relevant topics related to water usage which are of importance to consider when large scale applications are considered."
– Michel Boesten, University of Groningen, Netherlands
"This book [...] brings to light the contemporary issues along with the traditional issues associated with the water sector."
– Suresh Renukappa, University of Wolverhampton, UK
"I was impressed with Gray's third edition, and the fourth appears to build on that success. I find it to be a good general overview of water systems and water pollution control and, in a time when students find it hard to buy one specialized book let alone several, this book is broad enough to meet several needs simultaneously."
– Charles V. Shorten, West Chester University, USA