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修复受 thiacloprid 污染的土壤使用草生物炭装载的铁和氧化物活性硫酸盐:清除效应和土壤环境变化

Jie Li¹, Zhi Guo¹, Kangping Cui¹

¹School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China.

Journal of hazardous materials

|July 19, 2023

概括

这项研究引入了草生物炭载荷的铁和氧化物 (FeMn@BC) 来激活硫酸盐 (PS) 来从土壤中去除 thiacloprid (THI). 这种新的方法显著减少了土壤污染,改善了土壤的健康.

科学领域:

环境化学环境化学
土壤科学土壤科学
材料科学材料科学材料科学

背景情况:

农业土壤中的硫化 (THI) 污染对环境构成风险.
需要有效的补救策略来减轻THI对土壤生态系统的影响.

研究的目的:

开发和评估一种用于从农业土壤中去除 thiacloprid (THI) 的新方法.
为了研究草生物炭载荷铁和氧化物 (FeMn@BC) 激活土壤修复的硫酸盐 (PS) 的有效性.

主要方法:

使用草生物炭载荷的铁和氧化物 (FeMn@BC) 来激活硫酸盐 (PS).
研究影响THI去除的因素:FeMn@BC剂量,PS剂量,温度和土壤微生物.
评估了土壤营养水平 (NH4+-N,可用的) 和酶活性 (尿酶,酸酶).
使用16S rRNA基因测序分析了土壤微生物社区结构.

主要成果:

在7天内达到75.22%的THI清除率,在60天内达到92.50%,使用FeMn@BC/PS.
在15天后观察到NH4+-N (3.96x) 和可用 (3.25x) 的显著增加.
尿酶 (22.54%) 和酸酶 (33.28%) 的活性显著增加.
FeMn@BC/PS治疗缓解了THI诱导的微生物社区损害,增加了操作分类单元,并促进了Actinobacteriota的丰富性.

结论:

FeMn@BC/PS是一种高效的先进氧化工艺,用于从污染的土壤中去除 thiacloprid.
处理不仅可以去除THI,还可以增强土壤营养素的可用性和微生物活动.
这种方法为土壤修复和生态恢复提供了一个有希望的解决方案.

关键词:

生物炭是一种生物炭.铁和氧化物铁和氧化物透硫酸盐是一种酸盐.土壤整治土壤整治土壤整治太亚克洛普里德 (Thiacloprid) 是一种硫化物.

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