Comparison of Biomethane Production Process Using Two Different Types of Reactors from Dairy Wastewater

Authors

  • Martha Emilia Ocaña Lopez Department of Biotechnology, Faculty of Chemical Sciences, Autonomous University of Coahuila, Boulevard V. Carranza e Ing. J. Cárdenas Valdés, Col. República Oriente, Saltillo, Coahuila C.P. 25280., Mexico
  • Alma Idalia Soria Ortiz Department of Biotechnology, Faculty of Chemical Sciences, Autonomous University of Coahuila, Boulevard V. Carranza e Ing. J. Cárdenas Valdés, Col. República Oriente, Saltillo, Coahuila C.P. 25280., Mexico https://orcid.org/0009-0003-7445-4785
  • Leopoldo Javier Rios Gonzalez Department of Biotechnology, Faculty of Chemical Sciences, Autonomous University of Coahuila, Boulevard V. Carranza e Ing. J. Cárdenas Valdés, Col. República Oriente, Saltillo, Coahuila C.P. 25280., Mexico https://orcid.org/0000-0002-3398-8014
  • Eduardo Osorio Hernandez Faculty of Engineering and Sciences of the Autonomous University of Tamaulipas, Matamoros SN, Zona Centro Ciudad Victoria, Tamaulipas, C.P. 87000, Mexico https://orcid.org/0000-0002-9248-8167
  • Miguel Angel Perez Rodriguez Departament of Botany, Universidad Autónoma Agraria Antonio Narro, Calzada Antonio Narro 1923, Col. Buenavista, Saltillo, Coahuila, C.P. 25315, México; M.E https://orcid.org/0000-0001-8023-8489
  • Jose Antonio Rodriguez de la Garza Department of Biotechnology, Faculty of Chemical Sciences, Autonomous University of Coahuila, Boulevard V. Carranza e Ing. J. Cárdenas Valdés, Col. República Oriente, Saltillo, Coahuila C.P. 25280., Mexico https://orcid.org/0000-0002-2283-1900
  • Ileana Mayela Maria Moreno Davila Department of Biotechnology, Faculty of Chemical Sciences, Autonomous University of Coahuila, Boulevard V. Carranza e Ing. J. Cárdenas Valdés, Col. República Oriente, Saltillo, Coahuila C.P. 25280., Mexico https://orcid.org/0000-0002-6820-3416

Keywords:

Biomethane, Dairy watewater, Pollution

Abstract

The production of biomethane (Bio-CH4) from dairy wastewater was evaluated using two types of reactors: an upflow anaerobic sludge blanket (UASB) reactor and a batch reactor, using dairy wastewater, anaerobic sludge (as inoculum), and Opuntia imbricata (as biomass substrate). The latter is a cactus known as coyonoxtle and is considered an invasive plant in northern Mexico. The wastewater was characterized in accordance with NOM-001-SEMARNAT-2021. The UASB reactor having a capacity of 4.5 L, was charged with 350 mL of sludge, 24 g of Opuntia imbricata, and 3.5 L of dairy wastewater (20.1 g/L of O2) at pH 7.0. Batch reactors with a volume of 120 mL, were charged with 72 mL of dairy wastewater (20.1 g/L of O2), 8 mL of sludge, and 3 pieces of O. imbricata. The results of the UASB reactor: Total specific production was 21.2 mmol of Bio-CH4 and an efficiency in the degradation of organic matter of 70.7%, with a hydraulic retention time of 4.8 h and a total duration of 720 h. For the batch reactors: Total specific production was 11.6 mmol of Bio-CH4 and 97.95% efficiency in the removal of organic matter, with a total duration of 192 h. The results showed an economic, efficient and sustainable way of producing Bio-CH4.

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Published

2025-02-10 — Updated on 2025-02-10

How to Cite

Ocaña Lopez, M. E., Soria Ortiz, A. I., Rios Gonzalez, L. J., Osorio Hernandez, E., Perez Rodriguez, M. A., Rodriguez de la Garza, J. A., & Moreno Davila, I. M. M. (2025). Comparison of Biomethane Production Process Using Two Different Types of Reactors from Dairy Wastewater. BioResources, 20(2), 2574–2586. Retrieved from https://ojs.bioresources.com/index.php/BRJ/article/view/24184

Issue

Vol. 20 No. 2 (2025)

Section

Research Article or Brief Communication