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清除和发酵细菌之间的协同作用确保了在低温下有效地清除主流的anammox系统的

Jiaru Zhi¹, Guocheng Ma¹, Xueqing Shi²

¹School of Environmental Science and Engineering, Qingdao University, Qingdao 266071, China.

|September 27, 2024

概括

低温不会阻碍同时进行部分化,化,脱化和发酵 (SNADF). 这一过程有效地去除和减少污泥,即使在寒冷的条件下,通过优化微生物群落的主流 anammox 应用.

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:

同时部分化,亚纳摩克斯,脱和发酵 (SNADF) 是一种用于先进的污泥减少和去除的新工艺.
了解低温的影响对于应用主流的anammox工艺至关重要.

研究的目的:

研究低温对SNADF反应堆的性能和微生物群体的影响.
评估 anammox 在寒冷条件下主流应用的可行性.

主要方法:

在32°C至16°C的温度下运行SNADF反应堆.
使用高通量测序分析了去除效率和微生物社区结构.
进行微生物相关性网络分析以了解物种间相互作用.

主要成果:

有效的去除 (81.9-94.9%) 即使在16°C时也保持不变.
低温促进了关键细菌的丰富,包括 *Candidatus Brocadia* (AnAOB), *Nitrospira*和 *Nitrosomonas* (AOB/NOB),以及 *Candidatus* Competibacter (DNB). 这种细菌的数量非常多.
微生物网络分析揭示了特定的AOB,DNB和发酵细菌在维持系统稳定性和在低温下去除方面的核心作用.

结论:

在低温下,SNADF工艺是强大的,有效的,促进主流的anammox应用.
微生物群落的有利转移,包括增加的AOB/NOB比率和丰富的DNB,支持在寒冷的环境中有效地去除.
发酵细菌,DNB和AOB之间的合作对于在不利的低温条件下稳定的SNADF性能至关重要.

关键词:

发酵发酵发酵发酵低温低温的低温是一个问题.主流的 anammox 在线观看微生物相关性网络是微生物的关联网络.去除除去除的方法

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