project - EIP-AGRI Operational Group

Capture and reuse of CO2 at a pig slaughterhouse: from the WWTP to the stunning process
Captura y reaprovechamiento del CO2 en un matadero de porcino: de la EDAR al proceso de aturdimiento

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Completed | 2018 - 2020 Spain
Completed | 2018 - 2020 Spain
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Objectives

Capture the carbon dioxide produced at the wastewater treatment plant (WWTP) of a pig
slaughterhouse to reuse it in the stunning of the pigs prior to slaughter.
The specific objectives are:
- Capture the gases emitted in the reactor of the WWTP of the slaughterhouse and determine their
composition.
- Separate the CO2 from the rest of the gases.
- Determine the quantity of CO2 that can be recovered from the gases emitted by the WWTP and its
validity for application in stunning at the slaughterhouse.
- Test the stunning of pigs with the recovered CO2 and analyse the product obtained.

Objectives

Capturar el dióxido de carbono que se produce en la Estación Depuradora de Aguas Residuales (EDAR)
de un matadero cárnico de porcino, para reutilizarlo en el aturdimiento de cerdos, antes de su sacrificio.
Objetivos específicos:
- Captar los gases que se emiten en el reactor de la EDAR del matadero y determinar su composición.
- Separar el CO2 del resto de gases.
- Determinar la cantidad de CO2 recuperable de los gases emitidos por la EDAR y su validez para
aplicarlo en el aturdimiento en el matadero.
- Ensayar el aturdimiento de cerdos con el CO2 recuperado y analizar el producto obtenido.

Activities

1 . Capture of the gases emitted in the reactor of the slaughterhouse’s WWTP.
2 . Determination of the composition of the gases emitted in the slaughterhouse’s WWTP reactor.
3. Separation of the carbon dioxide present in the gases emitted in the WWTP.
4 . Determination of the production of recoverable CO2 and analysis of the same in order to
assess its validity for use in the stunning of pigs.
5 . Experiments on the stunning of pigs with the CO2 recovered at the WWTP.

Activities

1. Captura de los gases emitidos en el reactor de la EDAR del matadero.
2. Determinación de la composición de los gases emitidos en el reactor de la EDAR del matadero.
3. Separación del Dióxido de Carbono presente en los gases emitidos en la EDAR.
4. Determinación de la producción de CO2 recuperable y análisis de este, para evaluar su validez para el
proceso de aturdimiento de los cerdos.
5. Experimentación de aturdimiento de cerdos con el CO2 recuperado en la EDAR.

Context

The project consists of developing a pilot system to capture the gases emitted by the
slaughterhouse’s wastewater treatment plant (WWTP) and separating the CO2 in order to reuse it to
stun the pigs prior to slaughter.
The aims are to reduce the greenhouse gas emissions from the slaughterhouse’s wastewater
treatment plant, reduce the CO2 to be acquired by the slaughterhouse for the stunning phase, and
transfer the technology for application in the entire slaughter industry and in other types of industries
that use WWTPs.
The actions that this project is based on are: 1) development of a pilot system to capture the gases
emitted in the reactor of the slaughterhouse’s WWTP; 2) determination of the composition of the
captured gases; 3) testing of various techniques to recover the CO2 present in the gases emitted by the
WWTP in order to determine the optimal method; 4) determination of the maximum production of
recoverable CO2 and analysis to assess its validity for use in the stunning of pigs; 5) experiments on
the stunning of pigs with CO2 recovered from the WWTP, discarding any possible sanitary
incompatibilities of this CO2 with the animals, and analysis of the quality of the meat obtained in order
to determine possible differences with respect to the meat obtained using normal commercial CO2.
Dissemination and knowledge transfer actions will also be undertaken throughout the course of the
project.

Project details
Main funding source
Rural development 2014-2020 for Operational Groups
Rural Development Programme
2014ES06RDRP009 Spain - Rural Development Programme (Regional) - Cataluña
Location
Main geographical location
Barcelona

€ 197848

Total budget

Total contributions from EAFRD, national co-financing, additional national financing and other financing.

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Contacts

Project coordinator

  • ESCORXADOR COMARCAL DEL MOIANÈS, S.A.

    Project coordinator