| 蘑菇废弃菌棒及其与猪粪混合发酵对沼气产量及质量的影响 |
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| 引用本文： | 邓媛方,邱凌,孙全平,井良霄,Hassanein A．AM. 蘑菇废弃菌棒及其与猪粪混合发酵对沼气产量及质量的影响[J]. 农业环境保护, 2012, 0(3): 613-619 |
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| 作者姓名： | 邓媛方 邱凌 孙全平 井良霄 Hassanein A．AM |
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| 作者单位： | [1]西北农林科技大学机械与电子工程学院,陕西杨凌712100 [2]农业部沼气西北分中心,陕西杨凌712100 [3]西北农林科技大学农学院,陕西杨凌712100 |
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| 摘 要： | 为了研究厌氧消化过程中日产气量、累计产气量和甲烷含量随厌氧消化时间的变化规律，在中温35℃±1℃条件下，采用批式单相厌氧消化工艺，分别用香菇、杏鲍菇和平菇废弃菌棒与猪粪混合发酵。结果表明，蘑菇菌棒具有很好的产气潜力，其中香菇菌棒TS产气量最高，为142．9mL·g^-1，平均产气量664.1mL·d^-1，杏鲍菇菌棒所产气体甲烷含量最高，平均63．8％；添加猪粪调节蘑菇菌棒C／N至25／1，对香菇菌棒前期严重酸化现象起到了很好的缓冲作用，使香菇菌棒、杏鲍菇菌棒和平菇菌棒累计产气量较单一物料分别提高了131．5％、97．9％和79．9％。研究结论为：香菇、杏鲍菇和平菇废弃菌棒均具有良好的产气潜力；添加猪粪能显著提高蘑菇菌棒累计产气量，同时提高香菇菌棒甲烷含量，降低杏鲍菇菌棒甲烷含量，对平菇菌棒甲烷含量影响不大。
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| 关 键 词： | 蘑菇菌棒；猪粪；厌氧消化；混合发酵 |
Influence of Anaerobic Codigestion of Mushroom Cultivation Wastes and Pig Manure on the Biogas Production and Its Quality |
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| Affiliation: | DENG Yuanfang, QIU Ling, SUN Quanping, JING Liangxiao, Hassanein A.AM ( 1. College of Mechanical and Electronic Engineering, Northwest A＆F University, Yangling 712100, China; 2. The Northwest Station of Biogas Products and Equipment Quality Test Center of the Ministry of Agriculture, Yangling 712100, China; 3. College of Agriculture, Northwest A＆F University, Yangling 712100, China) |
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| Abstract: | In this research ,the variations with time of daily biogas production, cumulative gas production and the fraction volume of methane during the anaerobic digestion have been investigated. The anaerobic batch digestion experiments were carried out at mesophilic condition 35 ℃± 1℃with three different kinds of mushrooms cultivation wastes alone, and mixed feedstock of mushroom cultivation waste and pig manure, separately. The results showed that the TS gas production rate of Shiitake cultivation waste had the highest production of 142. 9 mL＇g^-1, with daily biogas production of 664.1 mL. Plelmtus eqngiu cultivation waste had the highest CH4 content, the averages methane content was 63.8%; Mixing the mushrooms cultivation wastes with pig manure and adjusting the C/N to 25/1, the acidification phenomenon in the early stage of Shiitake cultivation waste had been well improved. Compared with the single mushroom cultivation wastes, the cumulative gas pro- duction of Shiitake cultivation waste, Plelmtus eqngiu cultivation waste and oyster mushroom cultivation waste mixed with pig manure was raised by 131.5%, 97.9% and 79.9%, respectively. The mushrooms cultivation wastes could produce biogas in potential yields, and when pig manure was involved the cumulative gas production was improved a lot. Methane content of Shiitake cultivation material waste was improved by adding the pig manure, at the same time reducing the CH4 content of Plelmtus eqngiu cultivation waste, and the CH4 content of oyster mushroom cultivation waste was changed relatively little. |
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| Keywords: | mushroom cultivation waste pig manure anaerobic digestion anaerobic codigestion |
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