Sequestration of macronutrients from anaerobic wastewater treatment with iron- and steel-making slags

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United States of America

PATENT NO 11225427
APP PUB NO 20200087184A1
SERIAL NO

16493895

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Abstract

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Residuals, such as slag particles, from iron- and/or steel-making, and/or water-leached eluates thereof, are added directly to a conventional or multi-staged anaerobic digester or other sewage sludge or biosolid handling process. The slag particles or other residuals sorb, sequester, immobilize, or otherwise promote the removal of phosphorus and/or sulfur from wastewater, sludge, or biosolids being treated, such that the associated aqueous phase concentrations of phosphorus and sulfur are significantly reduced.

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Patent Owner(s)

Patent OwnerAddress
THE REGENTS OF THE UNIVERSITY OF COLORADO A BODY CORPORATE1800 GRANT STREET 8TH FLOOR DENVER CO 80203

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bilgin, Azize Azra Boulder, US 1 0
Grubb, Dennis G Lansdale, US 4 2
Hernandez, Mark T Boulder, US 3 2

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