The Treatment of Stock Yard's Sewage by the Activated Sludge Process

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Excerpt from The Treatment of Stock Yard's Sewage by the Activated Sludge Process: A ThesisThe tanks were first operated to accumulate sludge. From Feb. 24 to March 8, tanks 3 and 4 were operated on the continuous flow plan, with tank 7 as a Settling tank. From March 8 to April 18 all of the tanks were operated on the continuous flow plan. The results were not satisfactory, owing to the poor condition of the air distribution system. Considerable septic sludge was found in the air ducts at the bottom of the tank. The averages for the period April 1 to 15 inclusive, show a use of air at the rate of cu. Ft. Per minute per sq. Ft. Or cu. Ft. Per gallon of sewage, actual flow, with periods of hrs. In the aeration tanks and hrs. In the settling tanks respectively. During the period April 20 to May 19, the tanks were operated on the Fill and Draw plan, while the air distribution system was being rebuilt.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.