Method for nitrogen removal and nitrogen salts recovery using carboxylated cellulose extracted by nitro-oxidation

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United States of America Patent

PATENT NO 12122687
APP PUB NO 20210317010A1
SERIAL NO

17267683

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Abstract

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A method of treating contaminated water, such as wastewater, with carboxylated cellulose to remove ammonium and nitrogen-containing impurities is claimed. Carboxylated cellulose extracted by nitro-oxidation has negatively-charged functionality and forms an aggregate when exposed to positively-charged impurities in contaminated water. The aggregate, nitrogen-containing impurities, and by-products from the nitro-oxidation process can be isolated to provide a fertilizer or fertilizer component.

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Patent Owner(s)

Patent OwnerAddress
THE RESEARCH FOUNDATION FOR THE STATE UNIVERSITY OF NEW YORK35 STATE STREET ALBANY NY 12207

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hsiao, Benjamin S Setauket, US 43 2492
Johnson, Ken I Port Jefferson Station, US 3 0
Sharma, Priyanka East Setauket, US 28 145
Sharma, Sunil Kumar East Setauket, US 11 28

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