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. 03, 2021
Filed:
Jul. 23, 2018
Dingjiang Guo, Chengdu, CN;
Zhi He, Chengdu, CN;
Jinsong He, Chengdu, CN;
Chao Liu, Chengdu, CN;
Xiangting Cai, Chengdu, CN;
Dingjiang Guo, Chengdu, CN;
Zhi He, Chengdu, CN;
Jinsong He, Chengdu, CN;
Chao Liu, Chengdu, CN;
Xiangting Cai, Chengdu, CN;
Abstract
The invention discloses a method for treating wastewater generated in the spherical nickel hydroxide production process. The invention uses a combined membrane treatment process to systematically and specifically treat process wastewater produced at all stages of the spherical nickel hydroxide preparation process. The concentration of crude wastewater greatly reduces the treatment burden and energy consumption in the evaporation process with obvious environmental protection benefits. In addition, the membrane treatment system has the characteristics of easy control and simple operation. By virtue of the treatment method of the invention, the quality of some produced water can meet the standard of purified water.