US Patent 7550083 Process and equipment for treating ammonium containing liquid

Patent 7550083 was granted and assigned to Hitachi on June, 2009 by the United States Patent and Trademark Office.

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Patent Citations Received

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US Patent 11787716 Apparatus and method for advanced nitrogen and phosphorus removal of domestic sewage based on DEAMOX in AOAO process with sludge double-reflux

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Patent Inventor Names

Kazuichi Isaka0

Tatsuo Sumino0

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Patent abstract

The process for treating an ammonium containing liquid by denitrification treatment of an ammonium containing liquid containing at least ammonium comprises carrying out nitrate reduction treatment of reducing nitrate contained in or added to the ammonium containing liquid to nitrite, and carrying out anaerobic ammonium oxidation treatment of simultaneously anaerobically denitrifying nitrite produced in the nitrate reduction treatment and ammonium contained in the ammonium containing liquid by anaerobic ammonium oxidizing bacteria.

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=07550083

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