以农作物秸秆稻草、小麦秆、玉米秆)为发酵原料,采用批量发酵工艺,在中温条件下35℃依2℃)进行纯秸秆厌氧发酵产沼气潜力试验研究。结果表明,中温条件下,秸秆的平均日产气量、总产气量和平均甲烷含量体积分数,下同)玉米最高分别为1.75 L、113.6 L、56%);小麦次之分别为1.62 L、105.4 L、55.4%);稻草最低分别为1.39 L、90.31 L、55.04%)。稻草、小麦秆、玉米秆的产沼气潜力分别为0.41、0.48、0.51L/g(总固体含量)。
The potential of biogas production in the process of crop stalks (rice stalk, wheat stalk, maize stalk) batch biogas fermentation under the moderate temperature (35℃±2℃ ) were investigated.The results indicated that the highest average production of biogas (per day ), total production of biogas and average methane content were 1.75 L, 113.6 L, 56% respectively by using the maize stalk as raw material, for wheat stalk, these variables were 1.62 L, 105.4 L,55.4% respectively,in the case of rice stalk,these variables were 1.39 L,90.31 L,55.04% respectively.The potential of biogas production was 0.41 L/g TS ( rice stalk ), 0.48 L/g TS ( wheat stalk ) and 0.51 L/g TS ( maize stalk ).