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从消化的污水污泥中提取潜在有毒元素,并对残留物进行生态毒理学和生物可用性评估

Wiktoria Błaszczyk¹, Karolina Fila¹, Monika Raczkiewicz²

¹Department of Chemistry, Faculty of Food Science and Biotechnology, University of Life Sciences, 15 Akademicka Street, Lublin 20-950, Poland.

Journal of hazardous materials

|December 14, 2025

概括

蛋白离子液 (PILs) 从污水污泥 (SSLs) 中有效地去除潜在有毒元素 (PTEs),增强循环经济目标. 1-methylimidazolium化物 ([H1Cim]Cl) 显示出最高的效率,降低了PTE和液毒性,同时保留了营养物质.

科学领域:

环境化学环境化学
绿色化学绿色化学
废物管理废物管理

背景情况:

污水污泥 (SSL) 的农业使用对于循环经济至关重要,但受到潜在有毒元素 (PTEs) 的阻碍.
需要有效的方法来纠正SSS,减少PTE以确保安全的农业应用.
蛋白离子液 (PILs) 为选择性污染物清除提供了一个潜在的解决方案.

研究的目的:

评估不同PILs在从消化的SSL中去除PTE方面的有效性.
确定PTE去除的机制,并评估对生物可用性和残留毒性的影响.
为了确定影响PTE提取效率的因素.

主要方法:

使用了三种PIL:1-甲基化 ([H1Cim]Cl),三甲基硫酸 ([TEA][HSO4]) 和1-甲基硫酸 ([H1Cim][HSO4]).
评估了PTE去除效率,生物可用性和液毒性.
研究了温度,SSL-to-PIL比率,乙醇洗和SSL类型对提取的影响.

主要成果:

[H1Cim]Cl表现出最高的PTE提取效率 (11-89%),特别是对于Zn,Cd和Cu.
PIL治疗显著降低了可生物利用的PTE (例如,Zn,Ni) 和整体液毒性 (14-87%),特别是对于细菌 (78-87%).
保持了等关键营养素,并确定了Ni,Zn和As作为毒性关键因素.

结论:

拟议的基于PIL的方法在从SSL中去除PTE方面非常有效.
这种方法支持循环经济目标,允许更安全的SSL管理和重复使用.
污染污水处理提供了一个有希望的可持续解决方案,用于修复受污染的污水污泥.

关键词:

艾利维布里奥·菲舍里 (Aliivibrio fischeri) 是一个鱼类生物.水性漂水剂的使用方法环境可持续性环境可持续性莱皮迪乌姆 (Lepidium sativum) 是一种植物.有毒性有毒性废物管理废物管理

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