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APROVECHAMIENTO ENERGÉTICO DE RESIDUOS ARROCEROS POR BIO-CONVERSIÓN

Authors: LUZ MARIA CONTRERAS VELAZQUEZ; ILEANA PEREDA REYES; OSVALDO ROMERO ROMERO;

APROVECHAMIENTO ENERGÉTICO DE RESIDUOS ARROCEROS POR BIO-CONVERSIÓN

Abstract

RESUMEN: La cosecha y produccion de arroz genera biomasa residual que actualmente no posee una ruta de disposicion ambientalmente sostenible, sin embargo podrian ser una fuente importante de carbono para procesos energeticos. En el presente trabajo se realiza una caracterizacion bioquimica de residuos arroceros: paja de arroz, cascara de arroz y residuo del proceso de secado, provenientes de la region central de Cuba con el objetivo de evaluar su potencial energetico mediante la ruta de bio-conversion a biogas. Adicionalmente se estimaron las emisiones de gases de efecto invernadero (GEI) que provoca el uso actual de estos residuos asi como el potencial de mitigacion de estas emisiones por concepto de generacion de electricidad a partir de una fuente renovable de energia. El estudio demostro que los residuos arroceros, con excepcion de la cascara de arroz que mostro muy bajo rendimiento, poseen una composicion quimica adecuada para la produccion de biogas, con limitaciones solamente en la relacion C/N. El mayor potencial de biogas de 0,52 m3kgSV-1 correspondio a la paja de arroz como mono-sustrato durante un tiempo de digestion de 36 dias, con 55% vol de metano bajo condiciones termofilicas. El analisis del uso energetico de estos residuos via biogas demostro que por este concepto se podrian generar con un indice de 0,73 MWht-1 de residuo y hasta un 1,5% del consumo de electricidad de pais, a la vez que se contribuiria a disminuir en un 0,5% las emisiones netas del pais y hasta un 7,2% las del sector energetico. Palabras clave: biogas, paja de arroz, cascara de arroz, residuo de secado, metano, emisiones de GEI

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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