Leibniz Institute for Agricultural Engineering Potsdam-Bornim, Potsdam, Germany.
Bioresour Technol. 2012 Nov;124:321-7. doi: 10.1016/j.biortech.2012.08.063. Epub 2012 Aug 24.
In this experimental work, the feasibility of wheat straw as a feedstock for biogas production is investigated using the newly developed upflow anaerobic solid-state (UASS) process. With the analytical emphasis placed on methane and metabolite production, both mesophilic and thermophilic 39 L UASS reactors were operated for 218 days at an organic loading rate of 2.5 g(VS)L(-1)d(-1) using wheat straw as sole substrate. For improved methanization of soluble metabolites, each UASS reactor was connected to an individual 30 L anaerobic filter (AF). During steady state thermophilic straw digestion was found to have a 36% higher methane yield (0.165 L g(VS)(-1)) whereas the hydrolysis rate constant increased by 106% (0.066 d(-1)).
在这项实验工作中，使用新开发的上流式厌氧固态（UASS）工艺研究了小麦秸秆作为沼气生产原料的可行性。分析重点是甲烷和代谢产物的生成，使用小麦秸秆作为唯一底物，在 2.5 g(VS)L(-1)d(-1)的有机负荷率下，39 L 的中温和高温 UASS 反应器分别运行了 218 天。为了提高可溶代谢物的甲烷化作用，每个 UASS 反应器都连接到单独的 30 L 厌氧滤池（AF）。在稳定的高温下进行的秸秆消化中，甲烷的产率提高了 36%（0.165 L g(VS)(-1)），而水解速率常数增加了 106%（0.066 d(-1)）。
