Potable Water And Methods Of Detecting Impurities

Paperback | October 12, 2012

byMoses Nelson Baker

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 edition. Excerpt: ...warnings may be given the consumers to boil it or avoid its use temporarily. Where the water is being treated, analyses or tests of some sort should be made very often, to judge accurately and continuously of the efficiency of the process. In addition, separate samples of the effluent from each section or unit of the plant should be examined, to see whether all parts of it are working properly. If the purification plant is a large one daily analyses may be advisable, and may help reduce the operating expenses. This would be the case more particularly where chemicals were being used, the analyses, or tests of some sort, indicating changes in the character of the water and the amount or kind of chemicals needed. The analyst may also be the general superintendent of the purification works, thus tending to reduce the expenses. SOME NOTABLE AMERICAN WATER LABORATORIES. In the early days of American waterworks neither chemical, bacterial nor microscopical examinations of water, as now understood, were thought of, or possible. Determinations of the mineral contents of water were first made and subsequently chemical methods for estimating organic matter were developed. Until recently the microscope was used as a diversion, or in the pursuit of natural history, rather than as an aid in securing and maintaining pure water supplies. Practical results from bacterial examinations of water were secured, at least in considerable numbers, before much had been accomplished in the same field with the microscope. All the earlier work, in each field, was done in private laboratories, investigators being engaged by cities or water companies as special needs for their services made themselves felt. About 1888 the Massachusetts State Board of Health was made...

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 edition. Excerpt: ...warnings may be given the consumers to boil it or avoid its use temporarily. Where the water is being treated, ...

Format:PaperbackDimensions:34 pages, 9.69 × 7.44 × 0.07 inPublished:October 12, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217739717

ISBN - 13:9780217739719

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