Water science and technology : an introduction / Nicholas Gray.

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Cover; Half Title; Title Page; Copyright Page; Dedication; Contents; Preface; Acknowledgment; Author; Part I: Water resources and ecology; 1. Water resources and demand; 1.1 Hydrological cycle; 1.2 Surface waters; 1.2.1 Rivers and lakes; 1.2.2 Reservoirs; 1.3 Groundwater; 1.3.1 Aquifers; 1.3.2 Groundwater quality; 1.4 Water demand; 1.5 Peak water; 1.6 The catchment as area of study; References; Further Reading; 2. Factors determining the distribution of animals and plants in freshwaters; 2.1 Introduction; 2.2 Natural dispersion; 2.2.1 Expected species; 2.2.2 Alien or exotic species.

2.3 Catchment water quality2.4 Dissolved solids; 2.5 Dissolved oxygen and temperature; 2.6 Suspended solids; 2.7 Lotic systems; 2.7.1 River flow and substrate; 2.7.2 River zonation; 2.8 Lentic systems; 2.9 Effect of climate change; References; Further Reading; 3. Basic aquatic ecosystems; 3.1 Introduction; 3.2 Community structure; 3.2.1 Phototrophic-autotrophic (producers); 3.2.2 Heterotrophic (decomposers); 3.2.3 Detritivores (consumers); 3.2.4 Herbivores (consumers); 3.2.5 Predators (consumers); 3.3 Allochthonous and autochthonous inputs; 3.4 Functional feeding groups; 3.5 Habitat zonation.

3.6 Lentic ecologyReferences; Further Reading; 4. Microorganisms in pollution control; 4.1 Introduction; 4.2 Nutritional classification; 4.3 Oxygen requirement of bacteria; 4.4 Microbial oxygen demand; 4.4.1 Self-purification; 4.4.2 Oxygen balance; 4.4.3 Re-aeration; 4.4.4 The oxygen-sag curve; 4.5 The biochemical oxygen demand (bod) test; References; Further Reading; 5. Water pollution; 5.1 Introduction; 5.2 Toxic substances; 5.3 Suspended solids; 5.3.1 Inert solids; 5.3.2 Oxidizable solids; 5.4 Deoxygenation; 5.5 Addition of non-toxic salts; 5.5.1 Eutrophication; 5.5.2 Algal toxins.

5.6 Heating of the water5.7 Effect on the buffering system; 5.7.1 Acid rain; 5.7.2 Acid mine drainage; 5.8 Groundwater pollution; References; Further Reading; Part II: Water quality management and assessment; 6. Water basin management; 6.1 Introduction; 6.1.1 Basic management programme for rivers; 6.1.2 Water quality and catchment management plans; 6.2 The water framework directive; 6.2.1 Introduction; 6.2.2 River basin characterization; 6.2.3 Implementation of the WFD; 6.2.4 River basin planning and monitoring; 6.2.5 Ecological classification system for surface water and groundwater.

6.2.6 Priority and other specific polluting substances6.3 Flood control and diffuse pollution; 6.3.1 Sustainable drainage systems; 6.3.2 Agriculture and forestry; References; Further Reading; 7. Water quality and regulation; 7.1 Introduction; 7.2 Potable waters; 7.3 Surface waters not used primarily for supply; 7.4 Priority substances and wastewaters; 7.5 Groundwaters; 7.6 Regulation; 7.7 Integrated Pollution Prevention and Control; References; Further Reading; 8. Water quality assessment; 8.1 Physico-chemical and biological surveillance; 8.2 Impact assessment.

Includes bibliographical references and index.

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