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:
Oct. 03, 2023
Filed:
Apr. 25, 2022
Shandong Jianzhu University, Jinan, CN;
Lin Wang, Jinan, CN;
Feiyong Chen, Jinan, CN;
Daoji Wu, Jinan, CN;
Xiaozhen Lu, Jinan, CN;
Qingyan Xia, Jinan, CN;
Tianyu Chen, Jinan, CN;
Juan Zhang, Jinan, CN;
Lu Zhao, Jinan, CN;
Zhihao Li, Jinan, CN;
Bo Gui, Jinan, CN;
Shandong Jianzhu University, Jinan, CN;
Abstract
An online cleaning system for micro-polluted nanofiltration membranes uses forward osmosis, and a process of the online cleaning system, and relates to the field of water treatment membrane separation technique. The online cleaning system includes a nanofiltration raw water tank, a nanofiltration membrane assembly, a pure water tank, a forward osmosis feed solution tank, a forward osmosis draw solution tank, a first saline water tank, a second saline water tank and a water bath temperature control device. Some embodiments include cleaning of the nanofiltration membranes that is realized by using forward osmosis as a nanofiltration membrane cleaning system, and cyclic regeneration of the nanofiltration membranes can be realized, so that the purposes of removing dissolved organic matters in micro-polluted raw water, reducing hardness of calcium and magnesium and prolonging the service life can be achieved.