Title:
BIO-ELECTROCHEMICAL INTEGRATED NITROGEN REMOVAL REACTOR
Document Type and Number:
WIPO Patent Application WO/2023/241695
Kind Code:
A1
Abstract:
Disclosed in the present invention is a bio-electrochemical integrated nitrogen removal reactor, which comprises a reactor shell and an end cover, wherein an anode, a cathode and anode separator, a cathode, a gas diffusion membrane, an active microorganism filler layer and an MBR membrane are sequentially arranged in the reactor shell from outside to inside in a sleeving manner; the reactor shell is provided with a water inlet and a sewage inlet, and the sewage inlet is arranged at the position corresponding to the active microorganism filler layer; and the end cover is provided with a gas outlet at the position corresponding to the anode, a gas collection port at the position corresponding to the active microorganism filler layer, and a water outlet at the position corresponding to the MBR membrane. In the present invention, a gas diffusion membrane is introduced into an electric field, so as to achieve efficient diffusion and enrichment of protons, and to separate a terminal electron donor and a terminal electron acceptor, such that ectopic electron compensation becomes possible, and the denitrification efficiency is improved; and a built-in MBR membrane is used, so as to effectively achieve solid-liquid separation, thereby facilitating interception growth, growth and proliferation of hydrogen autotrophic denitrification bacteria, improving the shock loading resistance of a reaction system, and reducing the effluent turbidity.
Inventors:
ZHANG CHENGLEI (CN)
XIE CHENXIN (CN)
TENG HOUKAI (CN)
LEI TAIPING (CN)
QIAN GUANGLEI (CN)
ZHAO HUI (CN)
REN CHUNYAN (CN)
LI QI (CN)
XIE CHENXIN (CN)
TENG HOUKAI (CN)
LEI TAIPING (CN)
QIAN GUANGLEI (CN)
ZHAO HUI (CN)
REN CHUNYAN (CN)
LI QI (CN)
Application Number:
PCT/CN2023/100717
Publication Date:
December 21, 2023
Filing Date:
June 16, 2023
Export Citation:
Assignee:
TIANJIN ZHENGDA SCIENCE & TECH CO LTD (CN)
CNOOC TIANJIN CHEMICAL RES & DESIGN INST CO LTD (CN)
CNOOC TIANJIN CHEMICAL RES & DESIGN INST CO LTD (CN)
International Classes:
C02F3/28
Domestic Patent References:
| WO2020109494A1 | 2020-06-04 |
Foreign References:
| CN115093011A | 2022-09-23 | |||
| CN112250163A | 2021-01-22 | |||
| CN102491515A | 2012-06-13 | |||
| CN114477421A | 2022-05-13 | |||
| CN103183402A | 2013-07-03 | |||
| CN112694166A | 2021-04-23 | |||
| JP2003181456A | 2003-07-02 |
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
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