Title:
MUNICIPAL WASTEWATER DENITRIFICATION TREATMENT DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2023/123989
Kind Code:
A1
Abstract:
Disclosed is a municipal wastewater denitrification treatment device, comprising a reaction tank. The reaction tank is connected to a water inflow pipeline, a water outflow pipeline and a backflow pipeline, the backflow pipeline communicating with the water inflow pipeline by means of a backflow element. Surface aerators are arranged in the reaction tank. The reaction tank comprises a reaction zone and a settling zone, the settling zone being located at the bottom of the reaction zone, and the reaction zone being provided with baffles. Each baffle is provided with a plurality of baffling channels, the side walls of the baffling channels being rough surfaces such that microorganisms in the reaction tank can be attached to the side walls of the baffling channels. The present invention further provides a treatment method using the municipal wastewater denitrification treatment device, in which nitrosation is initiated in virtue of microorganisms existing in wastewater so that the microorganisms grow while attached to the baffling channels, and anaerobic ammonia oxidation sludge seeding is implemented to initiate anaerobic ammonia oxidation, thereby achieving autotrophic nitrogen removal of municipal wastewater, and reducing material consumption of denitrification treatment.
More Like This:
Inventors:
LI XIANG (CN)
HUANG YONG (CN)
YUAN YAN (CN)
HUANG YONG (CN)
YUAN YAN (CN)
Application Number:
PCT/CN2022/103534
Publication Date:
July 06, 2023
Filing Date:
July 04, 2022
Export Citation:
Assignee:
UNIV SUZHOU SCI & TECHNOLOGY (CN)
International Classes:
C02F3/28; C02F101/16
Foreign References:
| CN114291893A | 2022-04-08 | |||
| CA2542894A1 | 2007-10-04 | |||
| CN105254011A | 2016-01-20 | |||
| CN107381808A | 2017-11-24 | |||
| CN215886698U | 2022-02-22 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
Download PDF: