Anaerobic Digestion of Sugarcane Vinasse Through a Methanogenic UASB Reactor Followed by a Packed Bed Reactor.
Appl Biochem Biotechnol
; 183(4): 1127-1145, 2017 Dec.
Article
en En
| MEDLINE
| ID: mdl-28516416
The anaerobic treatment of raw vinasse in a combined system consisting in two methanogenic reactors, up-flow anaerobic sludge blanket (UASB) + anaerobic packed bed reactors (APBR), was evaluated. The organic loading rate (OLR) was varied, and the best condition for the combined system was 12.5 kg COD m-3day-1 with averages of 0.289 m3 CH4 kg COD r-1for the UASB reactor and 4.4 kg COD m-3day-1 with 0.207 m3 CH4 kg COD r-1 for APBR. The OLR played a major role in the emission of H2S conducting to relatively stable quality of biogas emitted from the APBR, with H2S concentrations <10 mg L-1. The importance of the sulphate to COD ratio was demonstrated as a result of the low biogas quality recorded at the lowest ratio. It was possible to develop a proper anaerobic digestion of raw vinasse through the combined system with COD removal efficiency of 86.7% and higher CH4 and a lower H2S content in biogas.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Aguas del Alcantarillado
/
Reactores Biológicos
/
Biocombustibles
/
Sulfuro de Hidrógeno
/
Metano
Idioma:
En
Revista:
Appl Biochem Biotechnol
Año:
2017
Tipo del documento:
Article
País de afiliación:
Cuba
Pais de publicación:
Estados Unidos