一个有氧颗粒污泥实验室规模反应堆的 prokaryotic 和 eukaryotic 社区的温度驱动动力学
Mary Luz Barrios-Hernandez1, Thomas Solomon2, Fabian Orias-Obando3
1Department of Environmental Engineering and Water Technology, IHE-Delft Institute for Water Education, P.O. Box 3015, 2601, DA, Delft, the Netherlands; Environmental Protection Research Center (CIPA), Instituto Tecnológico de Costa Rica, Cartago, 159-7050, Costa Rica.
The Science of the total environment
|March 9, 2026
概括
有氧颗粒污泥 (AGS) 在不同的温度下有效地共同处理废水和便污泥. 微生物群落适应,确保有弹性的营养物质去除,尽管稳定性随温度而变化.
科学领域:
- 环境微生物学 环境微生物学
- 废水处理工程 废水处理工程
- 生物技术是生物技术.
背景情况:
- 废水系统中便污泥的联合处理带来了运营方面的挑战.
- 有氧颗粒性污泥 (AGS) 是一种潜在的联合处理解决方案.
- 高温对便污泥AGS性能的影响尚不清楚.
研究的目的:
- 评估AGS反应堆中的微生物继承和工艺稳定性,在不同温度 (20°C和30°C之间) 上共同处理废水和便污泥.
- 评估温度对营养去除效率和微生物社区结构的影响.
主要方法:
- 实验室规模测序批量反应器 (2.9升) 在20°C (AGS_20) 和30°C (AGS_30) 运行.
- 合成市政废水与4%的合成便污泥进行联合处理.
- 分析了化学氧气需求 (COD),营养物质的去除,以及微生物群体的组成 (原生生物和真核生物).
主要成果:
- 两个反应堆都实现了可比的有机物,和去除.
- 在30°C时观察到更快的化学氧需求 (COD) 吸收.
- 微生物群落表现出温度依赖的变化:AGS_20偏好了Accumulibacter和Dechloromonas,而AGS_30表现出不太稳定的群落,特定类型的突发性主导. 欧核生物 (阿米巴,状生物) 和真菌在不同温度下在颗粒结构和生物质调节中发挥了不同的作用.
结论:
- 在跨热处理方案同时处理便污泥时,AGS联盟展示了弹性和一致的营养去除能力.
- 细菌和真核生物群落共同为在不同温度下过程稳定性作出贡献.
- 温度影响微生物群落动态和AGS系统内的生态相互作用.
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