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The Sanitation of Cities and Towns and the Agricultural Utilization of Excretal Matters; Report on Improved Methods of Sewage Disposal and Water Supplies (Paperback) Loot Price: R406
Discovery Miles 4 060
The Sanitation of Cities and Towns and the Agricultural Utilization of Excretal Matters; Report on Improved Methods of Sewage...
The Sanitation of Cities and Towns and the Agricultural Utilization of Excretal Matters; Report on Improved Methods of Sewage...

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The Sanitation of Cities and Towns and the Agricultural Utilization of Excretal Matters; Report on Improved Methods of Sewage Disposal and Water Supplies (Paperback)

Charles Williams Chancellor

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Loot Price R406 Discovery Miles 4 060

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1887 edition. Excerpt: ...of the central parts of the cells being kept "entirely apart, suitable shaped projections are formed "on their surfaces, which are faced down to the same "plane as the exterior joints, so that when the machine is "screwed up, these nip the cloths between them, and bearing "upon each other form a series of stays from one end of the "machine to the other, supporting the plates when the equilized "pressure is destroyed, until the higher pressure forces the "obstruction away. Since the introduction of this simple device, "no fracture has occurred in any machines to which they have "been applied, and experience enables me to state positively that, "without such a method of support, no filter press can be success"fully used for sewage purposes. "Another requirement equally important is the mode of "introducing the sludge into the press. In most cases of filtra"tion an hydraulic pump is used, and where the matter is not "too thick and contains little, or no fibrous matter, answers "sufficiently well with small quantities. But we speedily found "that with the mass of fibrous matter and rubbish with which "we had to deal, the valves of the pumps continually became "choked, and operations were inevitably interrupted at the "most vital period. The large quantity of gritty, silicious "matter, as would be expected, rapidly cut the working parts "to pieces. The plan has therefore been followed of running "the sludge, or drawing it by vacuo, into cylinders placed "underneath the presses, and large enough to contain a charge. "From this vessel it is forced by compressed air, of a pressure "of 100 lbs. to 120 lbs. per square inch, ...

General

Imprint: Rarebooksclub.com
Country of origin: United States
Release date: July 2012
First published: July 2012
Authors: Charles Williams Chancellor
Dimensions: 246 x 189 x 3mm (L x W x T)
Format: Paperback - Trade
Pages: 50
ISBN-13: 978-1-150-24956-3
Barcode: 9781150249563
Categories: Books
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LSN: 1-150-24956-0

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