Anaerobic codigestion of the rice drying residue and pig manure in batch test

  • Lisbet Mailin López-González Centro de Estudios de Energía y Procesos Industriales. Universidad de Sancti Spíritus “José Martí Pérez”, Sancti Spíritus. Cuba
  • José Miguel Ruiz-Manso Departamento de Ingeniería Química, Facultad de Ciencias Aplicadas a la Industria, Universidad de Camagüey “Ignacio Agramonte Loynaz”, Camagüey, Cuba
  • Luz María Contreras-Velásquez Universidad Metropolitana de Quito, Ecuador
  • Julio Pedraza Garciga Centro de Estudios de Energía y Procesos Industriales. Universidad de Sancti Spíritus “José Martí Pérez”, Sancti Spíritus. Cuba
  • Orestes Hermida-García Centro de Estudios de Energía y Procesos Industriales. Universidad de Sancti Spíritus “José Martí Pérez”, Sancti Spíritus. Cuba
DOI: https://doi.org/10.1590/2224-6185.2019.2.%25x
Keywords: anaerobic digestion, biogas, pig residue, rice straw drying residue.

Abstract

The biogas production in Cuba has been addressed to the treatment of pig residues and wastewater generated from some industries, with the aim to reduce the pollutant load. However, other residues with a high potential to biogas production as the lignocellulosic has been scarcely studied. The aim of this work is to determine the methane yield and the kinetic of the anaerobic digestion process of the rice straw drying residue (RS) and the pig residue (RP). The experiment was carried out in 2 L reactors at batch regime to 38 ± 2 ºC. The substrates were tested in monodigestion and two blends of RS and RP. The highest experimental methane yield of 488,87 L CH4/kg SV was found for RP, but with the lowest methane production rate with a value of 40,98 L CH4/kg SV d. The codigestion of RS and RP had a synergetic effect for the mixture RS95:RP5, with an increase of 18 %, in comparison with the expected value by the individual contribution in the mixture.
Published
2019-06-10
How to Cite
López-González, L., Ruiz-Manso, J., Contreras-Velásquez, L., Pedraza Garciga, J., & Hermida-García, O. (2019). Anaerobic codigestion of the rice drying residue and pig manure in batch test. Chemical Technology, 39(2), 284-297. https://doi.org/10.1590/2224-6185.2019.2.%x
Issue
Vol 39 No 2 (2019)
Section
Artículos

This work is licensed under the Creative Commons Attribution-NonCommercial.