通过堆肥-生物过方法提高蒸谷物废弃物堆肥中气保留的效率和机制
Shi-Peng Wang1, Zhao-Yong Sun2, Song-Tao Wang3
1School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environment Pollution Control, Henan Normal University, Xinxiang 453007, Henan, PR China; College of Architecture and Environment, Sichuan University, Chengdu 610065, Sichuan, PR China.
Journal of environmental management
|December 5, 2024
概括
生物过通过捕获和转换氨气排放,显著减少了堆肥过程中的气损失. 这种方法通过增加生物过器中的化和氨同化来增强的保留,从而提高了堆肥质量.
科学领域:
- 环境科学 环境科学
- 废物管理 废物管理
- 微生物学 微生物学
背景情况:
- 堆肥对于废物管理至关重要,但遭受了严重的气损失.
- 气损失降低了堆肥的有效性,并引起了环境问题.
- 生物过为堆肥系统中节约提供了一个潜在的解决方案.
研究的目的:
- 调查堆肥-生物过系统在蒸谷物废弃物 (DGW) 堆肥中保持的效率.
- 在这个综合系统中阐明节约背后的机制.
- 确定关键的微生物参与者和参与固的代谢途径.
主要方法:
- 使用了堆肥生物过系统,预先堆肥的DGW作为生物过介质.
- 生物过系统中的损失与单一堆肥系统中的损失的比较.
- 量化氨 (NH3) 的去除效率和酸盐 (NO3-) 度的变化.
- 分析了微生物社区结构和与代谢相关的功能酶.
- 采用结构方程建模来确定影响保持的关键因素.
主要成果:
- 与单一堆肥 (40.1%) 相比,DGW堆肥-生物过系统的损失明显较低 (24.9%).
- 实现了高的NH3去除效率 (94.7%-97.7%) 随着生物过器中NO3的持续增加.
- 在生物过器内观察到增强的化和氨同化,导致NO3的积累和有机的形成.
- 已确定特定的细菌属 (Chryseolinea,Anseongella,Parapusillimonas,Bacillus,Urebacillus),它们有助于保持.
- 结构方程建模证实了化和氨同化是留的主要驱动因素.
结论:
- 堆肥生物过系统有效地提高了DGW堆肥中的保留率.
- 节主要通过NH3转化为NO3和有机通过化和生物过器中的氨同化来实现.
- 这种综合方法为改善堆肥质量和减少废物管理中的气损失提供了一个有希望的策略.
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