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Twort´s Water Supply, Seventh Edition , has been expanded to provide the latest tools and techniques to meet engineering challenges over dwindling natural resources. Approximately 1.1 billion people in rural and peri-urban communities of developing countries do not have access to safe drinking water. The mortality from diarrhea-related diseases amounts to 2.2 million people each year from the consumption of unsafe water.

This update reflects the latest WHO, European, UK, and US standards, including the European Water Framework Directive. The book also includes an expansion of waste and sludge disposal, including energy and sustainability, and new chapters on intakes, chemical storage, handling, and sampling. Written for both professionals and students, this book is essential reading for anyone working in water engineering.

Features expanded coverage of waste and sludge disposal to include energy use and sustainability
Includes a new chapter on intakes
Includes a new chapter on chemical storage and handling

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1. The Demand for Public Water 2. Water Supply Regulation, Protection, Organization and Financing 3. Hydrology and Surface Supplies 4. Groundwater Supplies 5. Dams and Reservoirs 6. Intakes 7. Chemistry, microbiology and biology of water 8. Storage, clarification and chemical treatment 9. Water filtration 10. Specialized and advanced water treatment processes 11. Disinfection of Water 12. Chemical storage, dosing and control 13. Energy use, sustainability and waste treatment 14. Hydraulics 15. System design and analysis 16. Distribution practice 17. Pipeline design and construction 18. Valves and meters 19. Pumping; electrical plant; control and instrumentation 20. Treated water storage

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Brandt, Malcolm J.
Civil engineer specialising in water supply planning and distribution system management; responsibilities include research in the UK and overseas as well as project execution in Europe, Asia, Middle East and North and South America.

Johnson, K. Michael
Civil engineer for design of large and small works such as dams, spillways, intakes, pipelines, tunnels, pumping stations, conventional water treatment, reverse osmosis and water storage in UK, South and Central America, Middle East and Far East.

Elphinston, Andrew J.
Chemical engineer specialising in potable water treatment, including both conventional and advanced treatment processes, with experience in UK, North and Southern Africa and Far East.

Ratnayaka, Don D.
Chemical engineer with extensive specialist knowledge of water treatment techniques; responsible for all aspects of water treatment process design for projects in UK, Europe, Africa, Asian sub-continent, Middle East, Far East, and Australia.

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