公开(公告)号：US20250051808A1

公开(公告)日：2025-02-13

申请号：US18718727

申请日：2022-12-05

Applicant: SUEZ GROUPE

Inventor： Mathieu HADDAD ,  Marc CALIGARIS ,  Patricia CAMACHO

IPC: C12P5/02 ,  C12M1/00 ,  C12M1/107

Abstract: The invention relates to a device (10) for biomethanation of a CO- and/or H2-containing gas (8), wherein the biomethanation device is characterized in that it comprises: a first reactor (11) comprising a cavity (12), said first reactor being configured to be placed inside a liquid bath (13) comprising at least one bacterial population, such that, when the first reactor (11) is in contact with the liquid bath (13), a biofilm is formed around the cavity (12); an injector (7) for injecting the CO- and/or H2-containing gas (8) into the cavity (12), the biofilm being capable of carrying out a biological conversion of the CO- and/or H2-containing gas into methane; a first CO2 injection device (14), configured to inject CO2 gas (9) into the liquid bath (13).

公开(公告)号：US20200377396A1

公开(公告)日：2020-12-03

申请号：US16497270

申请日：2018-03-30

Applicant: SUEZ GROUPE

Inventor： Irène MOZO ,  Marc CALIGARIS

IPC: C02F3/00 ,  C02F3/30 ,  C02F3/12

Abstract: In the field of wastewater or effluent treatment, a method for treating wastewater includes a first step of treating carbon contained in the wastewater by means of oxygen, a second step of treating the nitrogen contained in the treated water at the end of the first step, a third step of determining a ratio between a concentration of carbon and a concentration of nitrogen in the water at the end of the first step, a fourth step of controlling the supply of oxygen necessary for the first step as a function of a difference between the determination carried out in the third step and a strictly positive setpoint of concentration ratio. A device implementing the method is also provided.