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用酸盐和双A污染的沉积物修复的含铁的生物炭薄层封闭:洞察域间微生物相互作用

Yiheng Zhao¹, Xing Hou², Longfei Wang¹

¹Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing, Jiangsu, 210098, PR China.

Environmental pollution (Barking, Essex : 1987)

|September 7, 2023

概括

含铁生物炭 (FeBC) 封装有效地从污染的水和沉积物中去除酸盐和双甲 (BPA). 这种方法增强了微生物多样性和代谢活动,从而改善了污染物降解.

科学领域:

环境科学环境科学
环境化学环境化学
微生物学微生物学

背景情况:

有限的数据存在于合作去除酸盐和微量有机污染物使用薄层封装系统与Fe-loaded生物炭 (FeBC).
在这种修复过程中,微生物群落的动态和共同发生的模式在很大程度上是未知的.

研究的目的:

研究优化生物炭 (BC) 和FeBC作为封装材料的有效性,以修复覆盖水和沉积物中的酸盐和双A (BPA).
在修复过程中分析细菌,古菌和真菌的社区结构和代谢活动.

主要方法:

进行了批量实验,使用BC和FeBC作为封装材料来处理污染水和沉积物.
在28天的潜伏期内监测酸盐和BPA度.
使用先进的技术分析了微生物社区结构和代谢途径,包括共发生网络分析.

主要成果:

FeBC显著降低了地面水中的酸盐 (从29.6到11.0毫克L-1) 和沉积物 (从5.03到0.75毫克kg-1),表现优于对照组和BC组.
BC和FeBC都有效地将BPA降低到0.4毫克L-1以下,明显低于对照组.
封闭FeBC导致了微生物多样性的增加,并增强了代谢和BPA降解的代谢途径,其中细菌表现出更强烈的相互作用.

结论:

优化的生物炭特性,特别是FeBC,显著改善了水体沉积物中的污染物减弱.
封闭FeBC增强了微生物多样性和代谢活动,促进了酸盐和BPA的协同去除.
该研究为针对酸盐和微量有机污染物的沉积物修复策略提供了关键的理论指导.

关键词:

BPA的降解降解是BPA的降解.脱化过程中的脱.含有Fe的生物炭.代谢功能是指代谢功能.薄层封装是一种薄层封装.

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