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:
Aug. 25, 2020
Filed:
Oct. 30, 2015
Ddp Specialty Electronic Materials Us, Inc., Collegeville, PA (US);
DDP SPECIALTY ELECTRONIC MATERIALS US, INC., Collegeville, PA (US);
Abstract
A method for treating waste water containing ammonia comprising the steps of: i) passing the waste water as a feed solution through a first RO membrane () to produce a first permeate stream () and a first reject stream (), ii) adjusting the pH of the first reject stream () to >9, iii) passing the first reject stream () through a second RO membrane () to produce a second permeate stream () containing ammonia and a second reject stream (), and iv) passing at least a portion of the second permeate stream () to a cooling tower () to evaporate at least a portion of the ammonia.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile