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:||28 Mar 2014 15:26|
Integrated systems for farm diversification into energy production by anaerobic digestion: implications for rural development, land use & environment
Funded by: ESRC (RES-229-25-0022)
Led by: Charles Banks
1 October 2007 to 30 September 2010
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