Process for the Biological Treatment of Ammonium-Rich Aqueous Media
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United States of America Patent
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Issued Date -
Sep 4, 2008
app pub date -
May 16, 2003
filing date -
May 16, 2003
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Abstract
The invention relates to a process for the biological treatment of ammonium-rich aqueous media in the presence of ammonia oxidizing bacteria, by supplying nitrogen dioxide (NO.sub.2) into said aqueous media, thus effecting a nitrification and a denitrification, wherein further nitrogen oxide (NO) is supplied into said media such that the ratio of NO:NO.sub.2 is in the range from 1:2 to 1:500 (v/v). Further the use of off-gases in this process is disclosed as well as microorganisms cultured in the presence of NO and NO.sub.2.
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