The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 18, 2022
Filed:
Mar. 13, 2018
The Regents of the University of Colorado, Denver, CO (US);
Phoenix Services Llc, Kennett Square, PA (US);
Mark T. Hernandez, Boulder, CO (US);
Azize Azra Bilgin, Boulder, CO (US);
Dennis G. Grubb, Lansdale, PA (US);
The Regents of the University of Colorado, Denver, CO (US);
Phoenix Services LLC, Kennett Square, PA (US);
Abstract
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.