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影响化学氧气需求与比,调节微生物细胞间通信,影响部分化性能

Wenxin Xu¹, Wenhan Ma¹, Sixin Zhang¹

¹Engineering Research Center of Low-Carbon Treatment and Green Development of Polluted Water in Northeast China, Ministry of Education, School of Environment, Northeast Normal University, Changchun 130117, China.

Bioresource technology

|May 11, 2025

概括

这项研究揭示了乙同素乳 (AHLs) 如何调节废水处理. 发现特定的AHL和化学氧气需求与 (COD/N) 的比率通过抑制关键细菌来促进酸盐的积累.

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:

乙同素乳 (AHLs) 在活性污泥系统中调解微生物信号,影响转化.
AHLs调节城市废水中酸盐积累的确切机制尚不清楚.

研究的目的:

在不同的化学氧气需求与 (COD/N) 比率下研究转化和微生物相互作用.
阐明外源性乙同素乳 (AHLs) 在促进部分化中的作用.

主要方法:

在不同的COD/N比率下长期培养活性污泥.
添加外部的AHLs (3-OXO-C12-HSL和C6-HSL) 来评估它们的影响.
对转化过程的监测和微生物群体分析.

主要成果:

3的COD/N比率通过抑制酸盐氧化细菌 (NOB) 来显著增强酸盐积累 (65.8%).
特定的AHLs,C6-HSL和3-OXO-C12-HSL被确定为关键调节剂,其中C6-HSL促进和C12-OXO-HSL抑制化.
与氨氧化细菌相比,AHLs对NOB具有更强的调节作用.

结论:

该研究确定了与部分化有关的关键微生物参与者和AHL.
这些发现为开发自我调节的微生物群落提供了理论框架,以实现废水处理中的有效部分化.
优化COD/N比率和理解AHL信号对于增强除过程至关重要.

关键词:

社区结构社区结构市政废水的城市废水.N-乙-同素乳 (AHLs) 的使用方法亚酸盐的积累亚酸盐的积累议员数量检测是指对议员数量进行检测.

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