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在使用真菌-Fe/Mn生物炭的建造湿地中提升了新烟类毒素的去除

Xiaoyan Tang¹, Wei Zheng², Luying Chen²

¹Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu, 610068, China; College of Geography and Resources, Sichuan Normal University, Chengdu, 610101, China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Institute of Hydrobiology, Jinan University, Guangzhou, 510632, China; National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China.

Journal of environmental management

|July 2, 2025

概括

一种新型的真菌-Fe/Mn生物炭基质增强了建筑湿地,以清除杂烯 (IMI) 和 thiamethoxam (THX) 农药. 这种可持续的方法可以促进微生物降解和吸附,使水生生态系统更清洁.

科学领域:

环境科学环境科学
环境化学环境化学
生物技术是生物技术.

背景情况:

诸如伊米达克洛普里德 (IMI) 和硫 (THX) 这样的类杀虫剂在环境中持续存在,对水生生态系统构成风险.
传统的建造湿地 (CWs) 在去除这些持久污染物方面表现出有限的效率.

研究的目的:

评估一种新型的 Fungus-Fe/Mn 生物炭基质在增强使用 CWs 从农业废水中去除 IMI 和 THX 的有效性.
阐明修改CW中增强农药清除背后的机制.

主要方法:

建筑湿地被修改为菌-Fe/Mn生物炭,Fe/Mn生物炭,或作为控制.
使用模拟的农业废水测量了除草剂清除效率.
机理学研究包括吸附,微生物降解,元基因组分析和对氧化还原活性物种的分析.

主要成果:

使用-Fe/Mn生物炭的CW实现了显著更高的去除率:IMI的73.3%,THX的66.7%.
除去是由于基质吸附 (32.3-37.5%) 和微生物降解 (32.4-35.1%) 的结合.
甲基因组分析显示,在修改后的系统中,微生物多样性增加和关键农药降解基因 (例如p450,mnp) 的丰富.

结论:

-Fe/Mn生物炭通过改善吸附和微生物活性,协同增强CW中的农药清除.
这种新型基板提供了一个可扩展和可持续的解决方案,用于修复水生环境中的类毒素污染.
该研究确定了关键的微生物参与者和参与农药降解的基因,为有针对性的生物修复策略铺平了道路.

关键词:

生物修复是一种生物修复.建造的湿地建造的湿地超基因组学分析杀虫剂是一种杀虫剂.菲尼罗基亚特克里索斯波里亚姆 (Phanerochaete chrysosporium) 是一种植物.

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