Specification of Charles Jones : treating sewage.

  • Jones, Charles.
Date:
1869
Catalogue details

Licence: Public Domain Mark

Credit: Specification of Charles Jones : treating sewage. Source: Wellcome Collection.

    5/12 (page 3)
    Jones' Improvements in Treating Sewage. NOW KNOW YE, that I, the said Charles Jones, do hereby declare the nature of my said Invention, and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement, reference being had to the accompanying 5 Drawings, and to the letters and figures marked thereon, that is to say:— My said Invention has for its object the providing a method of obviating in a cheap and efficient manner the nuisance and danger attendant upon the discharge of fluid sewage into rivers, and also the 10 utilizing the solid residuum as a manure. Deodourization of sewage has never hitherto been perfectly arrived at, or has been abandoned on account of expense. The lime process a^one is merely a temporary expedient, as the water flowing off after the partial precipitation of the solids speedily undergoes changes and evolves 15 fceted gases. Other materials, such as metallic salts, and more particularly per- chloride of iron, have been strongly recommended as deodourizers and have been considered far more successful than many others that have been used, but their great expense has proved a serious obstacle to 20 their use. Now my Invention consists in effecting precipitation and deodouri¬ zation of sewage by the use of slaked lime combined or mixed with hydrocarbons, such, for example, as petroleum, or, which I prefer, with the acid tar or such resid ual product as is obtained in the treatment of 25 tars for and in the production of oils or other volatile liquid hydro¬ carbons, such mixture or compound being introduced into the sewage just before it falls into a depositing tank. By this means I obtain results as thoroughly satisfactory both as regards the precipitation of the solids and the deodourization of the sewage water as by the more 30 expensive salts hitherto used. Precipitation and deodourization having been obtained I sometimes introduce, according to the particular character of the manure required, either a solution of chloride of zinc or of sulphuric acid, or burnt clay, or magnesia, or a combination of any two or more of them. 35 In carrying out my Invention for every one hundred thousand gallons of ordinary sewage I take one hundred pounds of lime, and having slaked the same, I add to it at the time of its highest temperature about