Water treatment is a highly specialised subject of universal importance with few experts but many users. Unlike most books on water, this covers the whole water cycle, from treatment of surface and well waters to modern ways of dealing with effluent. It is written by engineers who know how hard it is for users to understand the specialised technology and its jargon. The aim is to give the reader a better understanding of the subject the water specialists are talking about and also, an introduction to design, trouble-shooting and decision-making.The authors are well qualified and highly experienced practitioners in water treatment. Their clear and sometimes humorous explanation will endear the book to all engineers whose professional activity requires them to all engineers whose professional activity requires them to be involved with the water cycle. For years they have written technical bulletins for Dewplan Ltd, aimed at a hypothetical plant engineer called Harold. Drafts shuttled between them marked with notes like 'have you defined that to Harold yet?' They entertained Harold with descriptions of the sex life of ion exchangers, and references to Murphy's Law, keeping chemical theory to a minimum.This guide draws on their bulletins, updated and combined into a whole. Each of its sections can usefully be read on its own, helped by an immensely useful Glossary, an Index, and by extensive cross-referencing. There are plenty of illustrations, diagrams, and tables. Everything is aimed at making it easy to read, easy to understand, and easy to locate just the bit of information wanted. The different subjects, including deaeration and dealkalization, eliminating pyrogens, reveres osmosis, base exchange, demineralization, filtration, flotation and nitrate removal, are discussed and explained in an entertaining, clear fashion which avoids jargon.Those who will find it invaluable reading are utility managers, technical buyers, industrial engineers, process and technical directors, managers and workers in industry, university science teachers and their students, sixth formers studying science, scientific aid workers in third world countries and Eastern Europe, and management in water treatment companies.A very general rule is therefore that alum is used unless the main problem is the removal of organics. ... (All chemical quantities are expressed as CaCO3.) Figure 5.1. Relationship of pH to the alkalinity/free C02 ratio Example 1 Suppose we have a water of pH7.7 with 220ppm alkalinity. Figure 5.1. shows that at pH7.7 the alkalinity:free CO2 ratio is 10:1, so that this water must contain 22ppm of free CO2.
|Title||:||An engineer's guide to water treatment|
|Author||:||George S. Solt, Chris Shirley|
|Publisher||:||Avebury - 1991-11-14|