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:
Sep. 02, 2025
Filed:
Jan. 16, 2025
Beijing University of Civil Engineering and Architecture, Beijing, CN;
China Electronics Engineering Design Institute Co., Ltd., Beijing, CN;
Haiyan Li, Beijing, CN;
Zhaoying Liu, Beijing, CN;
Yingjie Shen, Beijing, CN;
Haijun Zhang, Beijing, CN;
Ziyang Zhang, Beijing, CN;
Meipeng Jian, Beijing, CN;
Chaohong Tan, Beijing, CN;
Yuanping Fang, Beijing, CN;
Beijing University of Civil Engineering and Architecture, Beijing, CN;
China Electronics Engineering Design Institute Co., Ltd., Beijing, CN;
Abstract
The present invention provides a denitrification and dephosphorization composite filler, a preparation method and application. The composite filler is prepared with a polysulfone polymer as a skeleton and a hybrid denitrification electron donor material by an immersion precipitation phase conversion method. The composite filler designed by the present invention has uniform ball formation and strong controllable performance, solves the problem of poor stability of denitrification and dephosphorization in a system due to the disadvantages of easy system blockage, high consumption speed, weak synergy, etc. in the traditional improved medium, and has broad application prospects in wastewater treatment.