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内部短路革命:揭示了丰富的建造湿地中提升的去除效率

Yifei Wang¹, Xinshan Song², Donghua Zhao¹

¹China Communications Construction Company Shanghai Dredging Co., Ltd., Shanghai 200002, China.

Bioresource technology

|May 14, 2025

概括

在建筑湿地 (CWs) 中将碳纤维纤维集成到富含的基板中,可以显著提高的去除. 这种方法增强了电子转移和微生物活动,导致更有效的氨和总去除.

科学领域:

环境工程环境工程
微生物学微生物学
水处理处理水的方法

背景情况:

建筑湿地 (CWs) 面临由于电子受体稀缺而导致的氨去除限制.
增强电子转移对于改善CW中的转化过程至关重要.

研究的目的:

研究将碳纤维丝 (CFs) 整合到富含基板 (CF-CM) 中,以提高CW中去除的效果.
阐明改善转换背后的机制,包括电子转移和微生物社区转移.

主要方法:

建立五个实验室规模的建筑湿地,基板配置不同 (CF-CM与对照).
量化去除的速度 (-和总).
定量PCR (qPCR) 基因芯片分析,以评估微生物丰富性,重点关注转化和anammox基因.

主要成果:

与对照组相比,CF-CM显著增加了氨-和总去除率,分别是3.1倍和5.4倍.
CFs促进了内部短路,增加了anammox细菌的丰富度 (288倍),并增强了无化细菌的电子利用.
在CF-CM系统中观察到关键转换基因 (napA,narG,nirS) 和anammox基因 (hzsA,hzsB,hzo) 的升级.

结论:

将CF集成到富含的基板中是一种有效的策略,可以增强CW中的去除.
这种增强归因于改善了区域电子转移,优化了电子供需,并丰富了关键的微生物群落,如anammox细菌,电活性细菌和脱剂.
这种方法为废水处理中有效去除提供了一个有希望的解决方案.

关键词:

碳纤维纤维丝碳纤维丝电子转移是电子的转移.内部短路会导致内部短路.富含的基板可以提供.

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