Evaluation of Biogas Production from Swine Manure Using a UASB Reactor (Upflow Anaerobic Sludge Blanket) with Long-Term Operation

Ana Marcela Mosquera (), Juan Martín Delgado, Aura Alexandra Ramón, Juan Esteban Vásquez and Mariana Peñuela
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Ana Marcela Mosquera: Grupo de Investigación Bioprocesos, Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Antioquia, Calle 70 No 52-21, Medellín 050010, Colombia
Juan Martín Delgado: Grupo de Investigación Bioprocesos, Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Antioquia, Calle 70 No 52-21, Medellín 050010, Colombia
Aura Alexandra Ramón: Grupo de Investigación Bioprocesos, Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Antioquia, Calle 70 No 52-21, Medellín 050010, Colombia
Juan Esteban Vásquez: Grupo de Investigación Bioprocesos, Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Antioquia, Calle 70 No 52-21, Medellín 050010, Colombia
Mariana Peñuela: Grupo de Investigación Bioprocesos, Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Antioquia, Calle 70 No 52-21, Medellín 050010, Colombia

Energies, 2024, vol. 17, issue 11, 1-14

Abstract: To meet Colombia’s energy needs by 2050, a total installed capacity of 42 MW across its power generation infrastructure is required. To achieve this, transitioning to cleaner energy sources, such as biomass—a non-conventional renewable energy—is necessary. Biomass is a promising renewable source for thermal and electrical energy production. This study researched the production of biogas from swine manure using a UASB reactor to valorize this waste. Swine manure was collected every 20 days from a pig farm with a capacity of 200 sows, located in Santa Rosa de Osos, Antioquia. The flow rate was increased three times (1.30 L d −1 , 1.62 L d −1 , and 2.08 L d −1 ) to reduce the hydraulic retention time (HRT) and enhance biogas production. The volatile and total solids, chemical oxygen demand (COD), alkalinity, and biogas composition were measured over one year. The proposed system achieved 87.40% COD remotion from the feed stream and generated a yield of 507 mLCH 4 g VS −1 , with an HRT of 19 days and an OLR of 4.27 gCOD L −1 d −1 . The reactor produced biogas with a CH 4 content of 67.7%, CO 2 content of 18.1%, and H 2 S content of 1413 ppm. This study highlights the effectiveness of the UASB reactor for biogas production using swine manure as a substrate.

Keywords: energetic transition; pork industry; biogas; methane; biomass valorization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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