公开(公告)号：US12187632B2

公开(公告)日：2025-01-07

申请号：US17766175

申请日：2021-10-29

Applicant: Beijing University of Technology

Inventor： Dan Cui ,  Chen Lu ,  Zi'en Tang

IPC: C02F3/00 ,  C02F3/28 ,  C02F101/16 ,  C02F101/30

Abstract: The disclosure discloses a method for enhancing denitrification of sewage with a low carbon-to-nitrogen ratio by using an electrode biocarrier, and relates to the field of sewage treatment. The disclosure uses a conductive material as a microbial carrier and a potentiostat to induce a micro-electric field for directional acclimation and enrichment of electroactive denitrification microorganisms, and realizes a high-efficiency denitrification of the sewage with a low carbon-to-nitrogen ratio. The disclosure aims to provide a technical method for solving the problem of deep denitrification of municipal sewage with a low carbon-to-nitrogen ratio.

公开(公告)号：US12281034B2

公开(公告)日：2025-04-22

申请号：US17756783

申请日：2021-10-14

Applicant: Beijing University of Technology

Inventor： Dan Cui ,  Kewen Wang ,  Yiming Liu ,  Aihong Chen

IPC: C02F3/00 ,  C02F3/28 ,  C02F101/30

Abstract: An electroactive bio-carrier module and a sewage treatment device using same are provided, which relate to the field of bioelectrochemistry and sewage treatment. The electroactive bio-carrier module is composed of an anode module and a cathode module made of a conductive material. The anode module is formed by connecting carbon fiber brushes in series and is of a vertically ring type structure; the cathode module is formed by connecting stainless steel meshes in series; the stainless steel meshes are in a folded horizontal stacked design; the anode and cathode modules are connected through an external lead wire to form a circuit. Surfaces of the anode and cathode modules can both enrich microorganisms, biofilms are formed on the surfaces. The electrode module is arranged in an up-flow type sewage treatment device and is used as an electroactive bio-carrier, to form a hybrid sewage treatment device with a built-in electroactive bio-carrier.

公开(公告)号：US20230331603A1

公开(公告)日：2023-10-19

申请号：US17766175

申请日：2021-10-29

Applicant: Beijing University of Technology

Inventor： Dan Cui ,  Chen Lu ,  Zi'en Tang

IPC: C02F3/00 ,  C02F3/28

CPC classification number: C02F3/005 ,  C02F3/282 ,  C02F3/006 ,  C02F2101/163

Abstract: The disclosure discloses a method for enhancing denitrification of sewage with a low carbon-to-nitrogen ratio by using an electrode biocarrier, and relates to the field of sewage treatment. The disclosure uses a conductive material as a microbial carrier and a potentiostat to induce a micro-electric field for directional acclimation and enrichment of electroactive denitrification microorganisms, and realizes a high-efficiency denitrification of the sewage with a low carbon-to-nitrogen ratio. The disclosure aims to provide a technical method for solving the problem of deep denitrification of municipal sewage with a low carbon-to-nitrogen ratio.