无氧消化器的微生物群多样性通过微空气和低频声音增强
John H Loughrin1, Rohan R Parekh1, Getahun E Agga1
1United States Department of Agriculture, Agricultural Research Service, Food Animal Environmental Systems Research Unit, 2413 Nashville Road, Suite B5, Bowling Green, KY 42101, USA.
Microorganisms
|September 28, 2023
概括
微空气和声波等处理方法可以促进家禽垃圾中的生物气体生产. 这些方法增强了微生物的多样性和分解,从而增加了生物气的产量,尽管组合效果不如单独的微风化效果.
科学领域:
- 微生物学 微生物学
- 生物技术是生物技术.
- 环境科学 环境科学
背景情况:
- 生物气生产依赖于消化剂中的微生物联盟.
- 禽类垃圾是生产生物气体的潜在原料.
- 微生物群落的动态影响生物气产量.
研究的目的:
- 为了研究时间和特定处理对家禽垃圾消化物的微生物群的影响.
- 为了将微生物社区的转变与增强的沼气生产相关联.
主要方法:
- 在化6周,23周和42周对消化器微生物组的分析.
- 处理的应用:控制,微空气,声波 (1000 Hz) 和组合声微空气.
- 在整个化期内,对生物气的产量进行了监测.
主要成果:
- 与对照组相比,微空气和声波处理都显著增加了生物气产量.
- 声音和微空气的组合效果不如单独的微空气效果.
- 微生物群落的组成随着时间的推移而变化,最初的主导地位在于Actinobacteria,Proteobacteria和Firmicutes,后来增加了Spirochaetes,Synergistetes和Verrucomicrobia.
- 治疗通常增强了微生物多样性,在特定类型的比例上有轻微的变化 (增加了Firmicutes,减少了Bacteroidetes).
结论:
- 微空气和声波处理是增强家禽垃圾生物气体生产的有效策略.
- 这些治疗可能会改善基质分解,促进微生物活动和生长.
- 虽然治疗影响了微生物多样性,但生物气增强的主要驱动因素似乎是改善基质可访问性,而不是急剧的社区重组.
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