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Solid-state anaerobic digestion of spent wheat straw from horse stall
- Source :
- Bioresource Technology. 102:9432-9437
- Publication Year :
- 2011
- Publisher :
- Elsevier BV, 2011.
-
Abstract
- The spent wheat straw from horse stall bedding has lower cellulose and hemicellulose contents, but higher volatile fatty acid content than raw wheat straw. Biogas production from solid-state anaerobic digestion (SS-AD) of spent wheat straw and raw wheat straw was compared in this study. The SS-AD tests were conducted at 22% total solids (TS) content using inoculum from a liquid AD system at three feedstock-to-inoculum (F/I) ratios of 2.0, 4.0, and 6.0. Daily methane yields of spent wheat straw peaked 8 and 3 days earlier than those of raw wheat straw at F/I ratios of 2.0 and 4.0, respectively. The highest methane yield of 150.0 L/kg volatile solids (VS) was obtained from spent wheat straw at an F/I ratio of 4.0, which was 56.2% higher than that of raw wheat straw. The corresponding cellulose and hemicellulose degradation of spent wheat straw was 24.1% and 49.4% higher than those of raw wheat straw, respectively.
- Subjects :
- animal structures
Environmental Engineering
Renewable Energy, Sustainability and the Environment
food and beverages
Bioengineering
General Medicine
Straw
Total dissolved solids
Methane
chemistry.chemical_compound
Anaerobic digestion
Animal science
chemistry
Agronomy
Biogas
Bioenergy
Animals
Hemicellulose
Anaerobiosis
Horses
Cellulose
Waste Management and Disposal
Triticum
Subjects
Details
- ISSN :
- 09608524
- Volume :
- 102
- Database :
- OpenAIRE
- Journal :
- Bioresource Technology
- Accession number :
- edsair.doi.dedup.....22e2fde31913f2b96c476866b7ae26dc