Special Consular Reports Volume 21, No. 3

Special Consular Reports Volume 21, No. 3

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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. 1899 edition. Excerpt: ...is too well known in Great Britain to need a lengthy detailed description, but briefly it may be said that the purification is effected first by deodorizing the sewage and precipitating the solids in settling tanks by means of a chemical precipitant and deodorant known as ferozono, and then by filtering the ferozoned sewage through a-specially prepared filter bed containing polarite, through the medium of which a very high degree of purity is obtained in the effluent. The international system was first put into operation in England about eleven years ago, at the sewage works of the then local board of Acton, now the district council, where the system is still in successful operation. The combination of the ferozoue aud polarite system has been most successfnlly carried out since then by a great number of councils, corporations, and other authorities, as it recommends itself on account of the small space required for the tanks and filters, the fact of the works being thoroughly under control, the use of no costly plant or machinery, and the minimum amount of labor required to carry on the process. Its consequent economy and assured efficiency have given to the process the foremost place among the sewago-disposal systems of any country. In explanation of the process: The sewage receives its proper proportion of ferozone as it flows from the sewer into a channel through which it passes to the settling tanks, the ferozoned sewage flowing on into another channel, which s1irrounds the top of the tank on the outside and passes down from it through a series of vertical pipes which enters and delivers the sewage into the tank near the bottom, thus aiding materially the sedimentation of the suspended matters carried by the sewage, and depositing...show more

Product details

  • Paperback | 180 pages
  • 189 x 246 x 10mm | 331g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236753461
  • 9781236753465