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Sewerage - LoveToKnow 1911 |
 | | The matter to be dealt:with may conveniently be classified as made up of three parts: (I) excreta, consisting of urine and faeces; (2) slop-water, or the discharge from sinks, basins, baths, andc., and the waste water of industrial processes; (3) surface water due to rainfall. |
 | | It may be removed in an unmixed state, either in pails or tanks or (with the aid of pneumatic pressure) by pipes; or it may be defaecated by mixture with dry earth or ashes; or, finally, it may be conveyed away in sewers by gravitation, after the addition of a relatively large volume of water. |
 | | In the sewerage of Berlin, for example, the maximum rainfall allowed for is $ of an inch per hour, of which one-third is supposed to enter the sewers. |
| www.1911encyclopedia.org /Sewerage (10063 words) |
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