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:
Apr. 14, 2026
Filed:
Sep. 04, 2020
DE Nora Permelec Ltd, Kanagawa, JP;
Manabu Ozawa, Tamano, JP;
Yoshinori Nishiki, Fujisawa, JP;
Masaaki Kato, Tamano, JP;
Rie Morita, Tamano, JP;
DE NORA PERMELEC LTD, , JP;
Abstract
An apparatus () for producing an acidic aqueous solution includes: an electrodialyzer () that has a monovalent ion perm-selective ion-exchange membrane and separates wastewater containing chloride ions and alkali metal ions into electrodialysis concentrated water and electrodialysis diluted water by an electrodialysis treatment; an electrolyzer () includes an anode that that electrolyzes the electrodialysis concentrated water to produce an acidic aqueous solution; and a first circulator () that circulates at least some of the acidic aqueous solution to the wastewater supplied to the electrodialyzer (), and that adjusts a pH of the wastewater supplied to the electrodialyzer to 3 to 9.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile