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Media type:
E-Article
Title:
Control of Biological Solids Concentration in Extended Aeration
Contributor:
Yang, Ping-Yi;
Gaudy,, Anthony F.
imprint:
Water Pollution Control Federation, 1974
Published in:Journal (Water Pollution Control Federation)
Language:
English
ISSN:
0043-1303
Origination:
Footnote:
Description:
<p>This paper presents the results of experiments on sludge hydrolization to control solids concentration in extended aeration treatment systems. The hydrolytically assisted extended aeration pilot plant system operated for 200 days on a feed of 300 mg/l glucose. Biological solids concentration in the aeration tank was between 3,000 and 5,000 mg/l and averaged 20 mg/l in the final effluent. Carbohydrate content of the sludge was about 12 percent and protein content about 44 percent. The addition of hydrolysate did not interfere with the nitrification process, and the system demonstrated a good ability to handle shock loads.</p>