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. 05, 2023
Filed:
Nov. 09, 2019
Nanjing University, Nanjing, CN;
Xuxiang Zhang, Nanjing, CN;
Depeng Wang, Nanjing, CN;
Yang He, Nanjing, CN;
Kailong Huang, Nanjing, CN;
Lin Ye, Nanjing, CN;
Bing Wu, Nanjing, CN;
Hongqiang Ren, Nanjing, CN;
NANJING UNIVERSITY, Nanjing, CN;
Abstract
The present invention discloses a method for starting a single-stage system for nitrogen removal coupling partial denitrification and anammox. The two nitrogen removal processes are coupled by gradually enriching denitrifying bacteria in anammox granular sludge and then activating the partial denitrification process of the functional bacteria (denitrifying bacteria). Particularly, the method comprises: inoculating anammox granular sludge in a single-stage reactor, adding an organic carbon source in gradients to enrich denitrifying bacteria and to adapt anammox bacteria, and replacing nitrites in feed with nitrates gradually to activate the partial denitrification process.