Solid state anaerobic co-digestion of yard waste and food waste for biogas production.
Bioresour Technol
; 127: 275-80, 2013 Jan.
Article
em En
| MEDLINE
| ID: mdl-23131652
ABSTRACT
Food and yard wastes are available year round at low cost and have the potential to complement each other for SS-AD. The goal of this study was to determine optimal feedstock/effluent (F/E) and food waste/yard waste mixing ratios for optimal biogas production. Co-digestion of yard and food waste was carried out at F/E ratios of 1, 2, and 3. For each F/E ratio, food waste percentages of 0%, 10%, and 20%, based on dry volatile solids, were evaluated. Results showed increased methane yields and volumetric productivities as the percentage of food waste was increased to 10% and 20% of the substrate at F/E ratios of 2 and 1, respectively. This study showed that co-digestion of food waste with yard waste at specific ratios can improve digester operating characteristics and end performance metrics over SS-AD of yard waste alone.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Bactérias Anaeróbias
/
Resíduos
/
Reatores Biológicos
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Biocombustíveis
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Alimentos
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Poaceae
/
Metano
Idioma:
En
Revista:
Bioresour Technol
Ano de publicação:
2013
Tipo de documento:
Article