Sanitary District’s Sewage Disposal Problem

Issue 15 and Volume 68.

Sanitary District’s Sewage Disposal Problem Thickening Machines Used to Separate Ore Suggest a Method of Separating Sludge from Liquid—Aeration Strongly Advocated —Necessity for Filtration and Chlorination to Purify Water By W. J. ALLEN President North Shore Sanitary District, Waukegan, Ill. THE following letter which accompanied the paper published herewith makes the novel suggestion that the machines used to separate ores through the thickening process may form a solution to the problem of separating the sludge from the liquid sewage. By dealing primarily with its own difficulties Mr. Allen’s paper may provide some suggestions to superintendents with similar questions confronting them. THE LETTER To the Editor: Your favor of recent date to hand. I enclose a copy of my paper read before the American Water Works Association, Illinois Section, as per your request. I have made a trip to the Pacific Coast, via Minneapolis, St. Paul, Yellowstone Parktrain to Spokane, Seattle,…

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