Biological-chemical treatment of liquid organic wastewater

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United States of America Patent

PATENT NO 9255022
APP PUB NO 20140217019A1
SERIAL NO

13757030

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Abstract

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The invention is directed to systems and methods of biological and chemical treatment of wastewater comprising organic nitrogen compounds. Systems may include: an aerobic reactor, a first separation module for separating liquid and solid components of the wastewater; an oxidation module for removing organic materials from the wastewater; and a post-anoxic reactor for denitrifying at least a portion of the wastewater. Systems may include a second separation module and various feedback recycle lines between the components. Methods may include: degrading by the aerobic reactor more than 95% of organic compounds to ammonia, oxidizing by the oxidation module at least a portion of the ammonia to nitrates, and degrading by the post-anoxic reactor at least a portion of the nitrates to nitrogen gas and water. Systems and methods may reduce total organic carbon of the wastewater by more than 90%, and total nitrogen of the wastewater by more than 90%.

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Patent Owner(s)

Patent OwnerAddress
INFILCO DEGREMONT INC8007 DISCOVERY DRIVE RICHMOND VA 23229

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chowdhury, Nabin Glen Allen, US 1 3
Heiniger, Bruno Boll, CH 5 3
Lau, Antonio Richmond, US 4 6
Mehta, Sunil Henrico, US 61 868
Schilling, Barbara West Orange, US 3 3
Ubaldi, Richard Glen Allen, US 2 6

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