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:
Jun. 16, 2026
Filed:
Feb. 24, 2022
Kurita Water Industries Ltd., Tokyo, JP;
Koji Nakata, Tokyo, JP;
Junichi Takahashi, Tokyo, JP;
KURITA WATER INDUSTRIES LTD., Tokyo, JP;
Abstract
A method for operating a reverse osmosis membrane device, a slime control method that is applied to a reverse osmosis membrane device, and a water treatment device are provided. The method comprises: a first step for intermittently adding an oxidation-based slime inhibitor and intermittently supplying water to be treated containing the oxidation-based slime inhibitor to a reverse osmosis membrane device; and a second step for adding an organic-based slime inhibitor at least during a period other than the addition period of the first step and supplying the water to be treated containing the organic-based slime inhibitor to the reverse osmosis membrane device.