Biochemical methane potential of winter wheat (Triticum aestivum L.): Influence of growth stage and storage practice
Rincon, Bárbara, Banks, Charles J. and Heaven, Sonia (2010) Biochemical methane potential of winter wheat (Triticum aestivum L.): Influence of growth stage and storage practice. Bioresource Technology, 101, (21), 8179-8184. (doi:10.1016/j.biortech.2010.06.039). (PMID:20598879).
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The effect of growth stage at harvest and of storage practice on the biochemical methane potential (BMP) of winter wheat was investigated using batch-fed stirred mesophilic digesters. The wheat used was a single variety sown at the same time (autumn) and harvested at 3 different stages in its growth: medium milk (A), soft dough (B) and Caryopsis (C). Wheats (A and B) were ensiled whilst the later harvested material (C) with a higher dry matter content was treated by the alkalage process. The BMP values expressed on the basis of volatile solids (VS) were 0.360 ± 0.030, 0.346 ± 0.006 and 0.311 ± 0.016 l CH4 g−1 VSadded for A, B and C, respectively. A simple first order kinetic model gave only a poor fit to the experimental data but a close match was obtained using a modified first order pseudo-parallel model which explains the methane production curve on the basis of differences in biodegradability of the plant material.
|Keywords:||biochemical methane potential, energy crops, growth stage, storage practice, kinetic model|
|Subjects:||S Agriculture > S Agriculture (General)
T Technology > TD Environmental technology. Sanitary engineering
|Divisions:||University Structure - Pre August 2011 > School of Civil Engineering and the Environment
|Date Deposited:||06 May 2011 15:28|
|Last Modified:||02 Mar 2012 12:17|
|Contributors:||Rincon, Bárbara (Author)
Banks, Charles J. (Author)
Heaven, Sonia (Author)
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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