House Drainage and Water Service in Cities, Villages, and Rural Neighborhoods

House Drainage and Water Service in Cities, Villages, and Rural Neighborhoods

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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. 1878 edition. Excerpt: ...the purity of the rain water had much to do with the result, but as the trouble occurred especially in the autumn, the inhabitants ascribed the rapid corrosion, in great measure, to the decaying leaves which at that season lie on the roofs. Experimental An illustration of the action of organic matter on lead mav Illustration of, ... the action of be obtained from a little experiment which any one may perter on lead. form. If a strip of bright lead be immersed in a glass of dark-colored rose water exposed to the air, the water after some time will usually be rendered colorless. The organic matter of the rose water is decomposed by the lead, which itself during the process is corroded. If such water be tested afterward it will be found to contain lead in solution. One of the most important features of the action of organic matter on lead is the fact that it enables water to dissolve some of the protective salts of lead, such as the sulphate and phosphate. Amount of The amount of organic matter in water is variable. There terinwater. is generally a small amount in all waters. Even water from granitic districts, according to Dr. Proctor, contains from 03 to 0-7 grains per gallon, while water which has permeated vegetable soil may afford 12 to 30, or even more, grains per gallon. The amount of organic matter generally depends on local causes. The sources of organic matter derived from animal decay are numerous, chiefly animal excreta and the refuse of manufactories. The contents of sewers and cesspools sewsge condram into springs or rivers, or else the water permeates the soil more or less impregnated with sewage. Water may be contaminated in this manner by a nuisance at a considerable distance from it, depending on the porosity and tenacity of..show more

Product details

  • Paperback | 124 pages
  • 189 x 246 x 7mm | 236g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236573331
  • 9781236573339