This widely-accepted introduction and practical guide to water treatment focuses on the issues of most interest to practising engineers, summarising the key issues and criteria in short and accessible sections, but with additional theory to explain and support the treatment processes considered. The book also presents up-to-date information on UK, European and American water-quality standards - including the 2007 amendments to the English and Welsh drinking water regulations. Expanding further on topics such as membrane processes and water demands, this fourth edition also includes a new section on water re-use, and two completely new chapters on water safety plans and private water supplies. ''Basic Water Treatment, Fourth Edition'' is an essential resource for water engineers at all levels - a textbook for students, a handbook for young engineers or chemists, and an indispensable guide full of practical information for the established practitioner.