Biochemical methane potential of winter wheat (Triticum aestivum L.): Influence of growth stage and storage practice.

Biochemical methane potential of winter wheat (Triticum aestivum L.): Influence of growth stage and storage practice.
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冬小麦(Triticum aestivum L.)的生化甲烷潜力:生长阶段和储存实践的影响。

DOI:
10.1016/j.biortech.2010.06.039
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发表时间:
2010
影响因子:
11.4
通讯作者:
Rincón B
Rincón B
中科院分区:
工程技术1区
文献类型:
--
作者:
Rincón B

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采用间歇式搅拌中温消化器研究了收获期和贮藏期对冬小麦生化甲烷势(BMP)的影响。所用小麦是同一时间(秋季)播种的单一品种,并在其生长的3个不同阶段收获:中等乳熟期(A)、软面团期(B)和颖果期(C)。将小麦(A和B)青贮,而具有较高干物质含量的较晚收获的材料(C)通过碱化过程处理。对于A、B和C,基于挥发性固体(VS)表示的BMP值分别为0.360±0.030、0.346±0.006和0.311± 0.016 lCH4g − 1VSadded。一个简单的一阶动力学模型只给出了一个很差的拟合实验数据,但得到了密切的匹配,使用修改后的一阶伪平行模型解释的基础上的差异,在植物材料的生物降解性的甲烷生产曲线。
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±0.016lCH4g−1VSaddedfor 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.
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