Water Purification (Classic Reprint) - Softcover

Joseph W. Ellms

Softcover

ISBN 10: 1332072739 ISBN 13: 9781332072736

Publisher: Forgotten Books, 2019

Synopsis

Excerpt from Water Purification

In the following pages it is intended to treat only of the first division of this subject, since the second covers too broad a field to bring it Within the mom of this volume.

Both the kind and the amount of impurities in a polluted water affect the methods which can be employed for its purification, and this is so peculiarly true of sewage that its treatment has become an art in itself. Those waters which are to be purified for drinking purposes demand that a degree Of purity shall be produced which is not possible and usually unnecessary in the case Of sewage. The purification of the latter is, as a rule, quite incomplete as compared with that required for a safe drinking water, and obviously the Object to be attained is quite difl'erent. In the case of waters to be treated for making them suitable for steam-boiler purposes, or for general industrial uses, a slightly different Object is sought. The softening of hard waters or the removal of compounds of iron or manganese may be an integral part of the purification of a public drinking water supply, in which case it is combined with those processes utilized for making a water hygienically safe. Of course it is quite possible to carry on purification for industrial purposes independently of the more refined methods used for drinking water, and frequently this course is pursued in connection with manufacturing plants.

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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

About this title

Product Description

Excerpt from Water Purification In writing this book the object has been to provide the reader with a fairly complete account of the development of the art of water purification. As a knowledge of the physical, chemical and biological characteristics of natural waters is a prerequisite to the proper understanding of purification processes, a consideration of the properties of various classes of waters has been thought advisable. The relation of polluted public water supplies to water-borne diseases has received especial attention because of its importance. The various steps in purification processes, such as plain sedimentation, coagulation, filtration and disinfection, are described in considerable detail. Special chapters are devoted to water softening, and to the removal of iron and manganese from ground water supplies. The rapid progress made in the art of clarifying and purifying turbid waters in the United States during the past quarter of a century, has been notable. The evolution of the rapid sand filter from its crude beginnings to its present well-developed state for purifying waters of this type, is distinctly the result of research work undertaken during the early part of this period. It was the authors good fortune to have been identified with some of the earlier investigations of this problem, and to have been able to follow its solution closely in actual practice throughout the whole period. The experiences of other investigators, as disclosed by their published papers, have been drawn upon freely, and while no exhaustive examination of the extensive literature of the subject has been attempted, it is believed that the writers quoted and referred to are sufficiently representative to provide the reader with ample information upon the subjects discussed. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten

Edition details

• Publisher: Forgotten Books
• Publication date: 2019
• Language: English
• ISBN 10: 1332072739
• ISBN 13: 9781332072736
• Binding: Paperback
• Number of pages: 503