Resumo

CABRERA DIAZ, Ania et al. Combined system of packed bed anaerobic reactors for the treatment of raw vinasse. riha [online]. 2021, vol.42, n.1, pp. 95-106.  Epub 01-Mar-2021. ISSN 1680-0338.

The studies about the viability of the employment of anaerobic combined system for the vinasse treatment, have increased in the last years. Therefore, the objective of present work was to evaluate the anaerobic digestion process of raw vinasse using a combined system of upflow packed reactors (UPR) in series. Organic loading rate (OLR) was evaluated in the range of 2 to 10 kgCOD/m3d. The 10 kgCOD/m3d was selected as the stable operating load, obtaining average values of 90% and 1.03 N LCH4/Ld for the combined system in terms of elimination of COD and productivity of methane, respectively. The above represents average increases of 18 and 15% for these same parameters with respect to the use of a single anaerobic configuration.

Palavras-chave : anaerobic digestion; methane; upflow packed reactors; raw vinasse.

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