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化细菌和Enterobacter ludwigii之间的协同作用增强了煤矿倾倒土壤中PAHs的生物降解

Elizaveta P Pulikova¹, Vladislav I Kotsarev¹, Konstantin A Demin¹

¹Southern Federal University, Rostov-on-Don, Russia.

Journal of environmental management

|October 13, 2025

概括

这项研究表明,将非化细菌与化细菌结合起来,可以增强受污染的土壤中多环芳 (PAH) 的降解. 这种协同方法为PAH污染的生物修复提供了一个有希望的战略.

科学领域:

环境科学环境科学
微生物学微生物学
生物修复是一种生物修复.

背景情况:

多环芳 (PAH) 是在各种环境中发现的持久性有机污染物,包括煤土.
使用微生物进行生物修复是清理受PAH污染场所的关键策略.
煤土中的无氧条件需要能够进行无氧PAH降解的微生物.

研究的目的:

调查化细菌对煤炭垃圾土壤中化菌株的PAH降解的协同作用.
评估一个微生物联盟在增强PAH污染环境的生物修复方面的潜力.

主要方法:

从受PAH污染的煤炭垃圾场土壤中分离一个化微生物丰富培养物.
鉴定了一种可降解PAH的细菌Enterobacter ludwigii,能够降低酸盐.
同时应用Enterobacter ludwigii和化培养物,以评估对二烯和二烯降解的协同作用.

主要成果:

化丰富培养物对PAHs和重金属表现出耐药性.
结合使用Enterobacter ludwigii和化剂,加速了二烯和二烯的分解30%.
外源酸盐供应 (KNO3) 也显著增强了PAH降解,突出了酸盐作为电子受体的作用.

结论:

由PAH降解细菌和化剂组成的协同微生物联盟可以显著提高生物修复效率.
酸盐的可用性对于PAHs通过脱细菌的无氧降解至关重要.
这项研究提出了一种新的修复方法,用于PAH污染土壤的脱和化细菌联盟.

关键词:

脱化过程中的脱.丰富文化是一种丰富的文化.亚酸盐是一种酸盐.在化过程中,化南烯 (Phenanthrene) 是一种存在于人体中的物质.皮勒尼斯金字塔地区的金字塔

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