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揭示微生物群落生态及其对不同盐度下友性有氧颗粒污泥的功能和结构的影响

Hui-Juan Yan¹, You-Wei Cui¹, Jun Chen¹

¹National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124 China.

Bioresource technology

|February 16, 2025

概括

盐度的变化通过改变微生物群落来破坏性有氧颗粒污泥 (HAGS). 盐度下降导致细菌损失和真菌增加,导致污泥由于细胞外聚合物质减少而分解.

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:

性有氧颗粒污泥 (HAGS) 对于处理工业盐水废水至关重要.
微生物群落在不同盐度下的稳定性是HAGS性能的关键,但仍然不太了解.

研究的目的:

调查暴露在不同盐度水平的HAGS系统内的微生物社区生态.
阐明盐度变化对HAGS稳定性和功能的影响.

主要方法:

在HAGS系统中,盐度的变化得到了控制.
分析了微生物社区的组成和相互作用.
量化了细胞外聚合物质 (EPS) 的产生.

主要成果:

盐度的波动加剧了细菌和真菌之间的竞争,因为的重叠.
盐度下降 (40至0g/L) 导致真菌种群增加94.46%,功能性细菌减少.
受细菌-真菌动力学影响的EPS不足导致HAGS分解.

结论:

微生物社区生态在盐度压力下HAGS的稳定性和功能中发挥着重要作用.
了解这些微生物动态对于优化使用HAGS的盐废水处理是必不可少的.

关键词:

细菌-真菌相互作用的相互作用状真菌是一种状真菌.颗粒的分解颗粒的分解

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