在冷解过程中,不同区域的微生物如何合作促进SWIS的N2O排放?
Fei Su1, Yinghua Li1, Tianming Li1
1School of Resources and Civil Engineering, Northeastern University, Shenyang 110004, China.
The Science of the total environment
|November 25, 2023
概括
地下废水透系统 (SWIS) 的冷解周期刺激无氧细菌,增加氧化 (N2O) 排放. 这项研究将Euryarchaeota活动与冷解条件下的SWIS配置文件中的N2O释放联系起来.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 废水处理 废水处理
背景情况:
- 地下废水透系统 (SWIS) 有效地处理家庭废水.
- 瑞士可以释放氧化 (N2O),这是一个强大的温室气体.
- 结解 (FT) 周期对SWIS中的微生物群落和N2O排放产生影响.
研究的目的:
- 调查FT干扰对微生物群落结构和SWIS档案中N2O释放的影响.
- 在FT条件下阐明微生物介导的N2O排放机制.
主要方法:
- 在in-situ SWIS中模拟FT过程.
- 分析了微生物社区结构,专注于像Euryarchaeota.com这样的无氧细菌.
- 使用正规关联分析 (CCA) 来将微生物活动与N2O排放相关联.
主要成果:
- 在SWIS的中层和下层,FT循环刺激了无氧细菌,特别是Euryarchaeota.
- 在低氧条件下酸- (NO2 - N) 的积累支持了Euryarchaeota的生长.
- 欧亚古与SWIS中层和下层N2O排放增加有显著的相关性.
结论:
- 在 SWIS 中,FT 干扰增强了无氧细菌的脱.
- 这一过程显著增加了SWIS的N2O排放.
- 需要进一步的研究来澄清Euryarchaeota的N2O生产的具体途径.
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