Publicado

2014-03-01

Valorization of residues from refining of used vegetable oils

DOI:

https://doi.org/10.15446/dyna.v81n184.39189

Palabras clave:

Hydraulic retention time, oily wastes, two-phase anaerobic reactor, waste vegetable oil (es)

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Autores/as

  • Dolores Hidalgo-Barrio CARTIF Centro Tecnológico
  • Marta Gómez-Rincón CARTIF Centro Tecnológico
  • Alicia Aguado-Pesquera CARTIF Centro Tecnológico
  • Jesús María Martín-Marroquín CARTIF Centro Tecnológico
  • Emilia Sastre-García CARTIF Centro Tecnológico
This study investigates the advantages of two-phase anaerobic digestion for treating a mixture (1/5 v/v) of used vegetable oils processing wastes and pig manure using two semi-continuous digesters operated at mesophilic temperature (37±1 ºC). The experiments were conducted at hydraulic retention times (HRT) of 0.5, 1, 2 and 4 days in the first stage (acidifier) and at HRT of 11.5, 15, 18 and 20 days in the second stage (methanizer). The results revealed that the HRT had a high influence on the soluble chemical oxygen demand (CODs) and total dissolved solids (TDS) removal. The maximum total CODs removal efficiency of 86.4% and TDS removal efficiency of 81.9% was achieved at 20 days of global HRT. The maximum biogas production of 0.65 m3 per kilogramme of volatile dissolved solids (VDS) removed (65% CH4) was also achieved at 20 days of HRT.

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Cómo citar

[1]
D. Hidalgo-Barrio, M. Gómez-Rincón, A. Aguado-Pesquera, J. M. Martín-Marroquín, y E. Sastre-García, «Valorization of residues from refining of used vegetable oils», DYNA, vol. 81, n.º 184, pp. 20–27, mar. 2014, doi: 10.15446/dyna.v81n184.39189.