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修复三元重金属-聚乙烯微塑料共同污染的土壤使用共同修改的生物炭与深度环氧溶剂和温暖补丁:竞争性相互作用,机械洞察力和微生物社区响应

Luxin Zhang¹, Xiaobing Liu¹, Sishang Ge²

¹College of Environmental and Municipal Engineering, Shaanxi Key Laboratory of Environmental Engineering, Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an, 710055, PR China.

Environmental research

|November 13, 2025

概括

这项研究开发了一种来自霍利霍克草的新型生物炭,用温暖的补丁和深度环氧化溶剂进行修改,用于修复重金属和微塑料共同污染的土壤. 修改后的生物炭有效地固定了金属,改善了土壤健康,尽管微塑料降低了它的有效性.

科学领域:

环境科学环境科学
土壤科学土壤科学
材料科学材料科学材料科学

背景情况:

土壤受到重金属 (HM) 和微塑料的污染是全球环境问题.
生物炭是土壤修复的有希望的材料,但其有效性可能受到共同污染物的影响.
开发具有成本效益和高效的基于生物炭的修复策略至关重要.

研究的目的:

为了合成和表征一种新型的生物炭,用温补丁和深度环氧化溶剂 (MAG-WIM/B) 来改造,从草草草草草草草草草草草草草草草草草草草草草草草草草草草草草草草草草.
评估MAG-WIM/B在修复与 (Pb), (Cr), (Cd) 和聚乙烯微塑料 (PE-MPs) 共同污染的土壤中的有效性.
研究PE-MPs对生物炭在固定HM和改善土壤特性方面的性能的影响.

主要方法:

使用hollyhock草合成生物炭,用温暖补丁 (铁,白石,活性炭) 和深溶解剂 (MAG) 修改.
土壤化实验以评估DTPA可提取的Pb,Cr和Cd的减少.
分析土壤的物理化学特性,功能性酶活性 (尿酶) 和微生物群落多样性.
蒙特卡洛模拟以确定HM吸附行为.

主要成果:

在同时受污染的土壤中,MAG-WIM/B显著降低了DTPA可提取的Pb (50.8%),Cr (46.7%) 和Cd (24.2%).
修改后的生物炭改善了土壤的物理化学特性,增强了尿酶活性,并增加了微生物多样性.
蒙特卡洛模拟表明,在三元HM系统中,Pb的偏向吸附.
聚乙烯微塑料 (PE-MPs) 通过改变土壤特性和竞争吸附点,对生物炭的有效性产生了负面影响.

结论:

来自Hollyhock草的MAG-WIM/B是一种高效的材料,可以在受污染的土壤中固定多种重金属.
PE-MPs的存在构成了挑战,降低了共同污染的环境中的生物炭效率.
这项研究提供了一种战略方法,用于修复涉及重金属和微塑料的复杂土壤污染场景.

关键词:

重金属是一种重金属.霍利霍克跟踪的跟踪者聚乙烯微塑料中的聚乙烯微塑料土壤整治土壤整治土壤整治温暖补丁和DES-Co-修饰的生物炭

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