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:
Apr. 18, 2023
Filed:
Aug. 12, 2020
Tongji University, Shanghai, CN;
Hunan Sanyou Environmental Technology Co., Ltd, Changsha, CN;
Xiaohu Dai, Shanghai, CN;
Xiaoli Chai, Shanghai, CN;
Bin Lu, Shanghai, CN;
Dan Hou, Changsha, CN;
Hongbo Han, Changsha, CN;
Yue Mou, Changsha, CN;
Jing Yi, Changsha, CN;
TONGJI UNIVERSITY, Shanghai, CN;
HUNAN SANYOU ENVIRONMENTAL TECHNOLOGY CO., LTD, Changsha, CN;
Abstract
The present invention relates to microbial carriers for wastewater treatment, and in particular, relates to an organic composite powder carrier and its application for strengthening biological denitrification in municipal wastewater treatment. The organic composite powder carrier is compounded by a microbial carrier with a relatively large equivalent particle size and an organic alternative carbon source in the form of ultrafine powder. The composite powder carrier in the present invention includes a dedicated organic alternative carbon source, such as polyhydroxyalkanoates (PHA). The organic alternative carbon source can exclude the competitive relationship between microorganisms to ensure that denitrifying bacteria exclusively obtain electron donors required for denitrification. The composite powder carrier strengthens biological denitrification in municipal wastewater treatment, significantly improves denitrification efficiency, realizes deep biological purification of wastewater and ensures that the subject effluent complies with the strictest domestic discharge standards.