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在低氨废水中实现强大的部分化:电纳米纤维复合材料增强的水凝珠固定comammoxNitrospira

Peng Tang¹, Liangang Hou², Meiling Yin³

¹National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China.

Bioresource technology

|April 15, 2025

概括

在低氨废水中稳定的部分化 (PN) 可以使用使用新型纳米纤维增强的水凝珠来实现. 这些珠子有效地固定了comammoxNitrospira,提高了PN的性能和稳定性.

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:

在低氨废水中实现稳定的部分化 (PN) 是一个重大挑战.
康马莫克斯Nitrospira细菌具有独特的生理特征,对PN系统有益.
开发有效的固定化策略对于提高PN性能至关重要.

研究的目的:

为了研究聚乙烯醇/藻酸盐电旋纳米纤维 (PVA/SA-EN) 和聚乙烯化物EN (PVDF-EN) 水凝珠的有效性,用于固定comammoxNitrospira.
评估这些增强的水凝珠在促进低氨废水中的部分化方面的性能.
为了将PN效率与水凝珠的孔隙结构和comammoxNitrospira的丰富性相关联.

主要方法:

使用三明治 (PVA/SA-EN) 和核心外 (PVDF-EN) 结构的电纳米纤维水凝珠 (ENHB) 的构造.
通过固定comammox污泥,将comammox水凝珠 (cHB) 和comammoxENHB (cENHB) 组装在一起.
在低氨废水中运行cHB和cENHB系统60天,以评估PN性能.

主要成果:

在PN性能,水凝珠孔隙结构和comammoxNitrospira丰富度之间观察到强烈的相关性.
该PVA/SA-PVDF-cENHB表现出优越的孔隙结构和机械强度,达到55.08%的化物积累率.
康马莫克斯Nitrospira为PN贡献了73.19%,其在PVA/SA-PVDF-cENHB中的丰度是其他水凝珠的1.16-1.95倍.

结论:

纳米纤维复合材料增强的水凝固定化comammoxNitrospira提供了一个有前途的战略,在低氨废水中进行强大的部分化.
PVA/SA-PVDF-cENHB在增强PN方面表现出卓越的表现,这是由于其优化的结构和增加的comammoxNitrospira群体.
这种方法提供了创新的解决方案,通过增强的生物化工艺来克服低氨废水处理的挑战.

关键词:

康马莫克斯尼特罗斯皮拉电子旋转纳米纤维的纳米纤维水凝珠子的珠子固定不动的固定不动的部分化部分化

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