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在生物炭上固定的Paracoccus denitrificans通过增强的同时去除四环素和酸盐的机制

Wenjie Xu¹, Meng Jiang¹, Weizi Zhang¹

¹School of Environmental Engineering, Nanjing Institute of Technology, Nanjing 211167, China.

Bioresource technology

|December 4, 2025

概括

小麦生物炭固定了Paracoccus denitrificans XW1有效地去除了四环素 (TC) 和酸盐 (NO3-N) 的污染物. 这种生物炭微生物剂增强了水生生态系统中的污染物清除和细菌弹性.

科学领域:

环境微生物学环境微生物学
生物修复技术生物修复技术
水质管理水质管理

背景情况:

环素 (TC) 和酸盐 (NO3-N) 的共同污染严重影响水生生态系统.
有效的补救策略对于减轻这些环境威胁至关重要.

研究的目的:

开发和评估一种生物炭微生物剂,用于同时去除TC和NO3-N.
通过固定细菌进行增强的污染物清除的基础机制的研究.

主要方法:

在小麦草生物炭上隔离和固定Paracoccus denitrificans XW1.
在各种条件下,评估固定 (IB) 细胞与自由 (FB) 细胞的TC和NO3-N去除效率.
通过吸附研究,酶活性测定和转录学来研究去除机制.

主要成果:

生物炭固定的XW1 (IB) 在清除TC和NO3-N时明显优于自由的XW1细胞 (FB).
增强的TC去除主要是吸附驱动的,而NO3-N去除则依赖于生物炭促进的生物降解.
IB在五个周期中显示了持续的NO3-N去除,并增强了细菌的应激耐受性和合作.

结论:

小麦生物炭固定增强了Paracoccus denitrificans XW1的效率和稳定性,用于同时TC和NO3-N生物修复.
生物炭通过促进吸附,生物降解和细菌弹性来协同作用.
这项研究介绍了一种可持续的生物炭微生物剂,用于复杂的水资源整治.

关键词:

生物炭是一种生物炭.动不动的帕拉科克斯化物.微生物的新陈代谢亚酸盐是一种酸盐.环素四环素的使用方法

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