The Treatment of Stock Yard's Sewage By the Activated Sludge Process
The book The Treatment of Stock Yard's Sewage By the Activated Sludge Process was written by author Newman, Joseph Julius Here you can read free online of The Treatment of Stock Yard's Sewage By the Activated Sludge Process book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Treatment of Stock Yard's Sewage By the Activated Sludge Process a good or bad book?
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IN TANK NO HOURS SETTLING 3 4 5 6 0.25 0.50 1 2 3 Sludge which has been over aerated in winter has a pale straw color, settles very fast and is accompanied by a loss of flocculence. A typical example of over aerated sludge occurred on Dec. 25 and 26, ii 1916* The following table indicates the effect upon the settling qualities of over aerated sludge. HOURS SETILING 0.25 0.50 1 2 3 As the sewage was very weak on Dec 24 (SUNDAY) and Dec. 25 (holiday) and although the air was materially reduced on... Dec. 25, nevertheless the sluage received too n.uch air, which increased its settling qual- ities as well as changed its physical appearance. Two days aeration with sewage and a reduced air consumption were sufficient to return the sludge to Its noriral state. In warm weather the airount of air also has a very direct effect on the settling quality of the sludge. Starting with a sludge of good nornal quality, a decrease of air will gradually be accompanied by a change in color, to a lighter color, a loss of flocculence and a slov/er subsiding value.
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