调查玉米炉生物炭补充在持续试点规模无氧消化中的作用:性能和微生物社区动态
Sachin Krushna Bhujbal1, Preeti1, Akshay Joshi2
1Centre for Rural Development and Technology, Indian Institute of Technology Delhi 110016, India.
Bioresource technology
|November 8, 2024
概括
将玉米炉生物炭 (CSB) 添加到无氧消化 (AD) 中,显著提高了生物气和甲的生产. 这种生物炭的添加增强了微生物群落,从而导致大米草消化的产量更高.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 无氧消化 (AD) 是废物管理和可再生能源生产的关键过程.
- 提高AD的生物气和甲产量对于其经济可行性至关重要.
- 生物炭通过影响微生物活动,显示出改善AD性能的潜力.
研究的目的:
- 调查玉米炉生物炭 (CSB) 对持续试点规模无氧消化大米的影响.
- 评估CSB补充对生物气和甲产量的影响.
- 分析由CSB引起的微生物社区转移和相互作用.
主要方法:
- 持续的试点规模无氧消化大米,有或没有CSB补充剂.
- 测量每日平均特定生物气和甲产量.
- 主要组件分析 (PCA) 用于将挥发性固体 (VS) 减少与产量相关联.
- 对微生物群落进行基因组分析以进行表征.
- 同时发生的网络分析,以了解微生物相互作用.
主要成果:
- 与对照组相比,CSB补充剂的每日平均特异生物气产量增加了35%,甲产量增加了37%.
- 挥发性固体的减少与增加的沼气和甲产量正相关.
- 甲基因组分析显示了特定细菌家族 (Planococcaceae,Clostridiaceae,Ruminococcaceae) 和属 (Clostridium) 的丰富,以及甲基原始物 (Methanosarcina,Methanobacterium).
- 添加CSB改变了无氧消化器内的微生物相互作用.
结论:
- 玉米炉生物炭在草无氧消化过程中有效增强了生物气和甲的生产.
- CSB促进有益的微生物殖民和活动,从而提高了工艺效率.
- 这些发现为优化使用生物炭作为添加剂的无氧消化性能提供了宝贵的见解.
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