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:
Jul. 02, 2024
Filed:
Apr. 01, 2020
Nanjing University, Nanjing, CN;
Nanjing University & Yancheng Academy of Environmental Protection Technology and Engineering, Yancheng, CN;
Chendong Shuang, Nanjing, CN;
Shuangshuang Li, Nanjing, CN;
Tong Li, Nanjing, CN;
Guang Zhang, Nanjing, CN;
Aimin Li, Nanjing, CN;
Ke Wang, Nanjing, CN;
Juntian Wang, Nanjing, CN;
NANJING UNIVERSITY, Nanjing, CN;
NANJING UNIVERSITY & YANCHENG ACADEMY OF ENVIRONMENTAL PROTECTION TECHNOLOGY AND ENGINEERING, Yancheng, CN;
Abstract
The present invention belongs to the technical field of water treatment, and in particular to a magnetic powder strengthened method for removing nitrate nitrogen and inorganic phosphorus, which includes the following steps: (1) mixing permanent magnetic material powder with paramagnetic Fe3O4 powder, and magnetizing the mixture in a magnetic field to prepare magnetic powder; (2) adding the magnetic powder directly or in a form of granular filler into a water treatment reaction vessel; and (3) allowing the to-be-treated water to enter the water treatment reaction vessel, performing a chemical reaction of removing nitrate nitrogen and inorganic phosphorus in the presence of a reducing agent, and discharging the water after the reaction is completed. By adopting the method of the present invention, a uniform and fine magnetic field can be provided, thus the reaction efficiency is improved, and the process is simplified and the cost is lowered.