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. 17, 2023
Filed:
Feb. 24, 2020
Nanjing University of Science and Technology, Nanjing, CN;
Weiqing Han, Nanjing, CN;
Tao Cui, Nanjing, CN;
Kajia Wei, Nanjing, CN;
Wei Li, Nanjing, CN;
Lianjun Wang, Nanjing, CN;
Xiaodong Liu, Nanjing, CN;
Xiuyun Sun, Nanjing, CN;
Jiansheng Li, Nanjing, CN;
Jinyou Shen, Nanjing, CN;
NANJING UNIVERSITY OF SCIENCE AND TECHNOLOGY, Nanjing, CN;
Abstract
The present invention discloses an electrocatalytic Fenton oxidation-electrochemical oxidation coupling process and apparatus for efficient treatment of chemical wastewater, and belongs to the field of sewage treatment. The process includes an electrocatalytic Fenton oxidation step, an electrochemical oxidation step, and a pH adjustment step. A spacing between a cathode and an anode in the electrocatalytic Fenton oxidation step is controlled, so that oxygen produced at the anode reacts at the cathode to produce HO. The treatment requirements can be met without external aeration or external addition of HO, and meanwhile, the efficiency of COD removal by electro-Fenton oxidation is effectively improved. Further, by connecting a pH adjusting tank with the electrocatalytic Fenton oxidation-electrochemical oxidation coupling apparatus in series, a coupling treatment process with near-zero production of iron sludge is realized.