从食物垃圾的一阶段和两阶段厌氧消化中回收能源。
Energy recovery from one- and two-stage anaerobic digestion of food waste.
机构信息
DICAAR, Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza d'Armi 1, 09123 Cagliari, Italy; IGAG-CNR, Environmental Geology and Geoengineering Institute of the National Research Council, Piazza d'Armi 1, 09123 Cagliari, Italy.
DICAAR, Department of Civil and Environmental Engineering and Architecture, University of Cagliari, Piazza d'Armi 1, 09123 Cagliari, Italy; IGAG-CNR, Environmental Geology and Geoengineering Institute of the National Research Council, Piazza d'Armi 1, 09123 Cagliari, Italy.
出版信息
Waste Manag. 2017 Oct;68:595-602. doi: 10.1016/j.wasman.2017.06.013. Epub 2017 Jun 16.
One- and two-stage anaerobic digestion of food waste aimed at recovering methane (CH) and hydrogen and methane (H+CH), respectively, were compared in order to assess the potential benefits from the two-stage process in terms of overall energy recovery. Results suggest that a two-stage process where the first reactor is properly operated in order to achieve a significant net hydrogen production, may display a 20% comparatively higher energy recovery yield as a result, mainly, of enhanced methane production as well as of the associated hydrogen production. The highest methane production of the two-stage process was due to improved hydrolysis and fermentation of food waste, with increased amounts of volatile fatty acids being readily available to methanogenesis.
分别采用一阶段和两阶段厌氧消化处理厨余垃圾，旨在分别回收甲烷（CH）和氢气甲烷（H+CH），以此来评估两阶段工艺在整体能源回收方面的潜在效益。结果表明，第一阶段反应器如果能适当运行以实现显著的净氢气生产，那么由于甲烷产量的提高以及相关的氢气生产，整体能源回收效率可能会提高 20%。两阶段工艺的甲烷产量最高，是因为厨余垃圾的水解和发酵得到了改善，可用于产甲烷作用的挥发性脂肪酸的量增加。
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