热友硫化物驱动的自化脱:高速的去除和对微生物合作的元基因学见解
Yuan-Yuan Xu1, Xin Tan1, Cheng-Cheng Dang1
1State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China.
Environment international
|November 12, 2025
概括
热友硫化物驱动的自脱 (SDAD) 在反应堆中成功建立,显示出高酸盐去除和硫化物耐受性. 热热细菌占主导地位,揭示了在炎热环境中-硫循环的新见解.
科学领域:
- 环境微生物学环境微生物学
- 生物地质化学循环是什么
- 污水处理 污水处理 污水处理
背景情况:
- 硫化物驱动的自脱 (SDAD) 连接了和硫循环,但在热友条件下未得到充分探索.
- 了解热友SDAD的性能和机制对于其应用至关重要.
研究的目的:
- 丰富热友硫化物氧化脱剂,并研究其性能和代谢途径.
- 分析微生物社区结构,并确定热友SDAD系统中的关键功能基因.
主要方法:
- 在60°C的扩大颗粒污泥床 (EGSB) 反应堆中缩热友性脱剂.
- 使用16S rRNA基因测序对微生物群落组成的分析.
- 超基因组测序以获得高质量的基因组和分析代谢途径.
主要成果:
- 稳定的酸盐去除250毫克N L-1d-1实现高硫化物耐受性 (250毫克TDS L-1).
- 硫化物与酸盐的比率影响了去除效率,最佳性能为2:1.
- 在微生物群体中,Thermus (52.89%) 占主导地位,其次是uc_Aquificales (21.78%).
- 两个基因组揭示了硫化物氧化和脱的不同代谢策略,Thermus scotoductus编码nrfH.
结论:
- 这项研究建立了一个高性能热友好型SDAD系统,证明了增强的硫化物耐受性和高效的酸盐去除.
- 热被确定为热友硫合的关键参与者,对固有潜在影响.
- 这些发现为高温废水中去除提供了可持续的战略,并促进了对地热生态系统的理解.
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