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:
Jul. 11, 2017
Filed:
Dec. 21, 2015
Applicant:
Lakehead University, Thunder Bay, CA;
Inventors:
Pedram Fatehi, Thunder Bay, CA;
Farshad Oveissi, Thunder Bay, CA;
Assignee:
LAKEHEAD UNIVERSITY, Thunder Bay, Ontario, CA;
Primary Examiner:
Int. Cl.
CPC ...
D21C 11/00 (2006.01);
U.S. Cl.
CPC ...
D21C 11/0085 (2013.01); D21C 11/0007 (2013.01); Y10S 162/08 (2013.01);
Abstract
The spent liquor (SL) of a thermomechanical pulping (TMP) process introduces a high load to the wastewater system of this process. To reduce this load, fly ash from a biomass boiler is used for removing lignin from the SL, and also for decreasing the chemical oxidation demand (COD) and turbidity of the SL.