Methods And Devices for Bacterial Treatment of Sewage
The book Methods And Devices for Bacterial Treatment of Sewage was written by author William Mayo Venable Here you can read free online of Methods And Devices for Bacterial Treatment of Sewage book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Methods And Devices for Bacterial Treatment of Sewage a good or bad book?
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Patent No. 624,985, issued May 16, 1899, to N. D. Scott- Moncrieff, has been illustrated in Fig. 12. In this system the aeration is accomplished by allowing the sewage to pass through a series of trays placed one above the other wherein a large surface is exposed to the action of the air. Patent No. 628,987, issued July 18, 1899, to J. A. Maignen, is illustrated in Fig. 14. This was intended to apply to the filtration of water imder pressure, but is of interest as showing a means for withdrawin...g air from out filter beds. Patent No. 664,532, issued December 25, 1900, to William L. Church, of New York, is illustrated in Fig. 15. The object of this device of Mr. Church is to cause the sewage to pass through the filtering material in a series of waves so that it will be filtered through a great distance of filtering material without having an excessive fall. * See Mr. Snow's contritiution to the discussion of Mr. Leonard Metcalf, Mem. Am. Soc. C. E., Transactions Am. Soc. C. E., Vol. XL VI, page 474.
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