Oxidation ditch modification and automated control system for nitrogen removal and sludge settling improvements
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United States of America Patent
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Dec 10, 1996
Grant Date -
N/A
app pub date -
Sep 14, 1993
filing date -
Sep 14, 1993
priority date (Note) -
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Abstract
A method for treating municipal wastewater in an oxidation ditch activated sludge system by automated determination of the nitrogen depletion inflection point, which enables anoxic cycles to be utilized to achieve improved settling of the activated sludge by providing selective pressure against the growth of filamentous bacteria, by providing improved total nitrogen removal, by providing energy savings and by providing recovery of alkalinity.
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Cited Art Landscape
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