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通过 "0 + 1 > 1" 现象加速过程恢复:在混合无活性-活性污泥系统中增强亚纳莫克斯细菌的生长

Jing Yang¹, Danyang Zhu¹, Hui Gong²

¹State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.

Bioresource technology

|June 18, 2025

概括

混合非活性和活性污泥加快了anammox过程的回收,这种现象被称为"0 + 1 > 1". 这种方法增强了微生物生长和代谢,以更快地恢复系统.

科学领域:

环境微生物学环境微生物学
污水处理污水处理污水处理
生物技术是生物技术.

背景情况:

无氧氨氧化 (anammox) 对于废水中去除至关重要.
在操作故障后,anammox过程的缓慢恢复限制了实际应用.

研究的目的:

研究一种加速anammox过程恢复的新策略.
为了阐明利用混合无活性-活性污泥的增强回收背后的机制.

主要方法:

使用不活性 (过度通风损坏) 和活性阿纳莫克斯污泥的混合注射剂.
将混合污泥的回收率与仅仅是不活性或活性污泥的回收率进行比较.
分析与代谢和定数感应有关的微生物社区组成和基因表达.

主要成果:

观察到一个 "0 + 1 > 1" 现象,混合污泥的回收速度比单个污泥类型的回收速度快.
从活性污泥成分中增强了anammox细菌的生长是主要的回收驱动因素.
检测到代谢酶,氨基酸合成和定数感应的基因丰度增加.
由于hdh基因的不可逆转损伤,被排除了非活性污泥的重新激活.

结论:

混合非活性和活性污泥提供了一种具有成本效益的策略,以加快anammox过程回收.
该机制涉及协同作用,促进活跃的污泥生长和代谢活动.
这一发现对提高基于anammox的废水处理系统的弹性和效率有重大影响.

关键词:

澳大利亚航空公司 (AnAOB) 的增长率.亚纳姆莫克斯 (Anammox) 是一个不活跃的污泥泥.这就是"Inoculum Inoculum".系统恢复系统恢复系统恢复

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