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:
Sep. 10, 2019
Filed:
Sep. 21, 2017
Tangent Company Llc, Chagrin Falls, OH (US);
William C. Prior, Chagrin Falls, OH (US);
James E. Bolton, Chagrin Falls, OH (US);
Lyle E. Kirman, Cleveland Heights, OH (US);
David F. Rath, Dundas, CA;
Adam Arnold, Chagrin Falls, OH (US);
Glenn Graff, Willoughby, OH (US);
Kevin J. Elliott, Burlington, CA;
TANGENT COMPANY LLC, Chagrin Falls, OH (US);
Abstract
A wastewater treatment system includes a biological reactor having anaerobic, anoxic, and aerobic chambers. A lift station including a pump is operatively connected to a tertiary filter downstream of the biological reactor. The lift station receives biologically treated liquid from the tertiary filter and pumps the liquid from the lift station. A filtration subsystem is operatively connected to the lift station. The filtration subsystem receives and filters the liquid pumped by the lift station. The filtration subsystem includes a preliminary filter and a salt-rejecting membrane filter having a recycle conduit operatively connected to recirculate salt-rejecting membrane filter, thereby forming a salt concentration loop between biological reactor and the salt-rejecting membrane filter. A post-filtration subsystem is operatively connected to receive salt-rejecting membrane filter permeate, and includes an adsorbent and oxidation system.