固态厌氧共消化干草和大豆加工废物生产沼气。
Solid-state anaerobic co-digestion of hay and soybean processing waste for biogas production.
机构信息
Department of Food, Agricultural, and Biological Engineering, The Ohio State University/Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691-4096, USA; School of Agricultural and Food Engineering, Shandong University of Technology, Zibo, Shandong 255049, China.
Department of Food, Agricultural, and Biological Engineering, The Ohio State University/Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691-4096, USA.
出版信息
Bioresour Technol. 2014 Feb;154:240-7. doi: 10.1016/j.biortech.2013.12.045. Epub 2013 Dec 18.
Co-digestion of soybean processing waste (SPW) and hay in solid-state anaerobic digestion (SS-AD) for biogas production was investigated. Effects of the SPW to hay ratio, feedstock to effluent (inoculum) ratio, premixing of effluent with feedstock, and leachate recirculation on biogas production via SS-AD were studied. The highest methane yield of 258 L/kg VS was obtained with a SPW/hay ratio of 75:25 and feedstock/effluent (F/E) ratio of 3, which was 148% and 50% higher than that of 100% SPW and 100% hay, respectively. Increasing the F/E ratio from 1 to 5 decreased methane yield, however the highest volumetric methane yield (16.2L/L reactor) was obtained at an F/E of 3. There was no significant difference in methane yields between premixing 50% and 100% of the effluent. Leachate recirculation significantly accelerated the SS-AD start-up process when effluent was not completely premixed.
研究了在固态厌氧消化（SS-AD）中共同消化大豆加工废物（SPW）和干草以生产沼气。研究了 SPW 与干草的比例、进料与流出物（接种物）的比例、流出物与进料的预混合以及渗滤液再循环对 SS-AD 中沼气生产的影响。当 SPW/干草比为 75:25 且进料/流出物（F/E）比为 3 时，获得了 258 L/kg VS 的最高甲烷产量，比 100% SPW 和 100%干草分别高出 148%和 50%。增加 F/E 比从 1 增加到 5 降低了甲烷产量，但是在 F/E 为 3 时获得了最高的体积甲烷产量（16.2 L/L 反应器）。在预混合 50%和 100%的流出物之间，甲烷产量没有显著差异。当流出物未完全预混合时，渗滤液再循环可显著加速 SS-AD 的启动过程。
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