Anaerobic digestion of Crassulacean Acid Metabolism plants: Exploring alternative feedstocks for semi-arid lands.
Anaerobic digestion of Crassulacean Acid Metabolism plants: Exploring alternative feedstocks for semi-arid lands.
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DOI：
10.1016/j.biortech.2019.122262
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发表时间：
2019-10
影响因子：
11.4
通讯作者：
K. Lueangwattanapong;Fariza Ammam;P. Michael Mason;C. Whitehead;S. McQueen-Mason;Leonardo D. Gomez;J. Andrew C. Smith;Ian P. Thompson
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文献类型：
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作者：
K. Lueangwattanapong;Fariza Ammam;P. Michael Mason;C. Whitehead;S. McQueen-Mason;Leonardo D. Gomez;J. Andrew C. Smith;Ian P. Thompson
在这项工作中，选择了来自五个不同属（龙舌兰、凤梨、大戟、长寿花和仙人掌）的五种景天酸代谢（CAM）物种作为替代原料，并研究了它们的生化甲烷潜力（BMP）。使用污泥和瘤胃液作为接种物，在不受控制的 pH 值和中温温度 (39°C) 下进行批量测定。接种 AD 污泥的 CAM 工厂的平均甲烷产量范围为 281 至 382ml/gVS。这些值与从玉米（生物甲烷和挥发性脂肪酸（VFA）的原料）中获得的甲烷产量没有显着差异，这表明在降雨量少、不适合种植粮食作物的地区，CAM 植物可能可以作为生物能源作物，在降雨量低的地区作为生物能源作物。
In this work, five Crassulacean Acid Metabolism (CAM) species from the five different genera (Agave,Ananas,Euphorbia,Kalanchoe, andOpuntia) were selected as alternative feedstocks and their biochemical methane potentials (BMP) were investigated. Batch assays were performed using sludge and rumen fluid as inocula under uncontrolled pH and at mesophilic temperature (39 °C). Mean methane yields from the CAM plants inoculated with AD sludge ranged from 281 to 382 ml/gVS. These values were not significantly different from the methane yield obtained from maize, a feedstock for biomethane and volatile fatty acid (VFA), suggesting that CAM plants may be viable as bioenergy crops on poor-quality soils in areas with low rainfall that are unsuitable for cultivation of food crops.