| 3种农林生产剩余物厌氧发酵的特性 |
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| 引用本文： | 王晓曼,邱凌,冯茵菲,郑敏. 3种农林生产剩余物厌氧发酵的特性[J]. 西北农业学报, 2009, 18(6): 369-372 |
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| 作者姓名： | 王晓曼 邱凌 冯茵菲 郑敏 |
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| 作者单位： | 王晓曼,邱凌,郑敏(西北农林科技大学,农学院,陕西杨凌,712100;农业部沼气西北分中心,陕西杨凌,712100);冯茵菲(农业部沼气西北分中心,陕西杨凌,712100;西北农林科技大学,机械与电子工程学院,陕西杨凌,712100) |
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| 基金项目： | 国家科技支撑计划项目，沼气工程优化与标准化模式研究 |
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| 摘 要： | 以3种农林废弃物(佛手瓜茎叶、蘑菇废料和梧桐叶)为发酵原料,在(30±1)℃恒温条件下,通过对厌氧发酵过程中各种原料日产气量、pH值和气体成分等动态指标的测定,探究各种原料的发酵特性.结果表明:3种原料均配成2 000 g发酵液、并且总固体含量为8%的条件下,3种原料产气都有两个高峰,且持续时间相当.蘑菇废料,梧桐叶的累积产气量分别是45 360、32 770和14 470 mL,日平均产气量分别为657、216 、482 mL/d.在发酵过程中梧桐叶和蘑菇废料的pH值变化较为正常,第8天时测得两者的甲烷体积分数均在40%以上.佛手瓜茎叶在发酵过程中出现一定程度的酸积累现象,进入甲烷化阶段也比较晚.
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| 关 键 词： | 蘑菇废料 梧桐叶 佛手瓜茎叶 厌氧发酵 特性 |
| 收稿时间： | 2009-04-10 |
| 修稿时间： | 2009-05-10 |
Characteristics of Anaerobic Fermentation with Three Kinds of Agriculture and Forestry Remains |
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| WANG Xiaoman,QIU Ling,FENG Yinfei and ZHENG Min. Characteristics of Anaerobic Fermentation with Three Kinds of Agriculture and Forestry Remains[J]. Acta Agriculturae Boreali-occidentalis Sinica, 2009, 18(6): 369-372 |
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| Authors: | WANG Xiaoman QIU Ling FENG Yinfei ZHENG Min |
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| Affiliation: | College of Agronomy, Northwest A&F University, Yangling Shaanxi 712100, China;The Northwest Station of Biogas Products and Equipment Quality Test Center of the Ministry of Agriculture, Yangling Shaanxi 712100, China;College of Agronomy, Northwest A&F University, Yangling Shaanxi 712100, China;The Northwest Station of Biogas Products and Equipment Quality Test Center of the Ministry of Agriculture, Yangling Shaanxi 712100, China;The Northwest Station of Biogas Products and Equipment Quality Test Center of the Ministry of Agriculture, Yangling Shaanxi 712100, China;College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling Shaanxi 712100, China;College of Agronomy, Northwest A&F University, Yangling Shaanxi 712100, China;The Northwest Station of Biogas Products and Equipment Quality Test Center of the Ministry of Agriculture, Yangling Shaanxi 712100, China |
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| Abstract: | Three kinds of agriculture and forestry remains (leafy stems of chayote, mushroom waste and leaves of phoenix tree) were studied in this paper. The dynamic indexes such as the daily biogas production, pH value and gas composition are studied in the process of anaerobic fermentation in order to explore the anaerobic fermentation characteristics of raw materials. The results showed that the three raw materials all have two gas production peaks, and gas production lasts closely. the cumulative gas production of leafy stems of chayote, mushroom waste and leaves of phoenix tree is 45360, 32770 and 14470 mL,the average daily production of the them is 657,216 ,482 mL/d, respectively. The changes of pH value of leaves of phoenix tree and mushroom waste are normal,and methane contents of them are both above 40% at the 8th day. During the fermentation of leafy stems of chayote appears a measure of acid accumulation, and enters methane steps. |
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| Keywords: | Mushroom waste Leaves of phoenix tree Leafy stems of chayote Anaerobic fermenta-tion Characteristics |
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