Water Treatment

Authored by: Philip H. Jones , Mark A. Tompeck

Encyclopedia of Environmental Science and Engineering

Print publication date:  June  2012
Online publication date:  June  2012

Print ISBN: 9781439804421
eBook ISBN: 9780203757659
Adobe ISBN:


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The quality and reliability of a source of water will vary considerably, both in time and space. This means that characteristics (chemical, physical, and biological) will differ greatly depending upon the location and type of source. It also means that a given source may vary over the seasons of the year. Thus, in the selection of a water source, consideration is usually given to the use to which the water will ultimately be put so as to minimize the cost of treatment. Simultaneously consideration must be given to the reliability of the source to provide an accurate and constant source of supply. A groundwater supply may enjoy the benefit of requiring little or no treatment, while a surface supply such as a river, pond or lake may require considerable and perhaps seasonally varying treatment. However, a surface supply is visible and therefore more reliable whereas a groundwater supply may just disappear with no warning or notice.

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