通过在污水污泥堆肥过程中添加渣来减轻温室气体排放和增强发酵,从而减轻温室气体排放和增强发酵
Mingyue Xu1, Bao Yu1, Yue Chen1
1School of Environment, Tsinghua University, Beijing, 100084, China.
Journal of environmental management
|October 8, 2024
概括
将渣 (PS) 添加到污水污泥 (SS) 堆肥中,可以提高温度并减少氧化 (N2O) 排放. 这种微生物战略改善了废物处理和化,为经济带来了好处.
科学领域:
- 环境科学 环境科学
- 微生物学 微生物学
- 废物管理 废物管理
背景情况:
- 堆肥污水污泥 (SS) 会产生温室气体.
- 工业固体废物,如渣 (PS),可以用于废物处理.
研究的目的:
- 研究将PS添加到SS堆肥中的微生物机制.
- 评估PS对温室气体排放和化的影响.
主要方法:
- 用不同数量的PS堆肥SS.
- 监测温度,温室气体排放 (N2O) 和微生物多样性.
- 分析细菌群落的变化 (例如,Firmicutes,Chloroflexi,Dokdonella). 细菌群落中的变化.
主要成果:
- 添加PS增加了堆肥温度,并延长了高温阶段.
- 10%和15%的PS结合分别减少了68.9%和88.6%的N2O排放.
- 聚氨酸改善了废物多孔性,促进了有氧条件,丰富了诸如Firmicutes和Chloroflexi之类的有益细菌,同时减少了诸如Dokdonella之类的病原体.
结论:
- 将PS纳入SS堆肥是一种有效的废物处理策略.
- 添加PS会对微生物群落产生积极影响,减少温室气体排放,增强化.
- 该方法显示了可持续废物管理的经济可行性和实际应用潜力.
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