Modern methods of sewage disposal : for towns, public institutions, and isolated houses / by Geo. E. Waring, Jr.

  • Waring, George E., Jr. (George Edwin), 1833-1898.
Date:
1896
Catalogue details

Licence: Public Domain Mark

Credit: Modern methods of sewage disposal : for towns, public institutions, and isolated houses / by Geo. E. Waring, Jr. Source: Wellcome Collection.

Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)

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    Dr. C. Meymott Tidy presented to the Society of Arts (London) in 1886,^ paper on The Treatment of Sewage, in which he went fully into the relative importance of different elements of sewage, beginning as follows: — Liquid Excreta. Every adult male person voids on an average 60 ounces (3 pints) of urine daily. The 60 ounces contains an average of 2.53 ounces of dry solid matter, consisting of — Urea 512.4 grains. Extractives (pigment, mucus, uric acid) . . . 109.5 Salts (chiefly chlorides of sodium and potassium), 425.0 1100.9 = 2.53 ounces. The urine, therefore, of a population of 10,000 adults may be taken as 600,000 fluid ounces, or 3750 gallons per day. Urine rapidly decomposes, the urea becoming tin volatile body, carbonate of ammonia, and the urin thereby losing a valuable manurial constituent. Aftci a time, but at a later stage, certain foul-smelling gase- ous products of decomposition are evolved. To collec; and preserve urine, therefore, presents practical diffi culties. The ammonia from stale urine was formerlt distilled and converted into a sulphate, at Courbeville, near Paris. Solid Excreta. Every adult male person voids about 1750 grains (or 4 ounces) of faeces daily, of which 7? 1 Journal of the Society of Arts, Oct. 8tli, 1886, p. 1127.