相关实验视频

Updated: Aug 6, 2026

Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation

Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation

Published on: July 4, 2014

现场测量PFAS在长期陆地应用生物固体现场的漏

Jamie Klamerus^1,2, Kamruzzaman Khan¹, Maxwell Hire³

¹Department of Agronomy, Purdue University, West Lafayette, Indiana 47907, United States.

Environmental science & technology

|September 16, 2025

概括

在生物固体陆地应用现场研究了Per-和多基物质 (PFAS) 的地下迁移. PFAS度在浅土壤和孔水中最高,这表明由于土壤吸附和空气-水界面积聚,其向下运动有限.

科学领域:

环境化学环境化学
土壤科学土壤科学
水文地质学水文地质学

背景情况:

和多醇基物质 (PFAS) 是广泛用于工业应用的持久性有机污染物.
生物固体的历史性土地应用可以将PFAS引入土壤生态系统.
了解PFAS迁移对于评估潜在的地下水污染风险至关重要.

研究的目的:

评估PFAS在一个有生物固体土地应用历史的地点的地下迁移.
在不同深度的土壤和不和区孔水中量化PFAS度.
调查控制PFAS在土壤中的保留因素.

主要方法:

在两个深度 (60厘米和120厘米) 使用多孔吸杯溶解仪采集土壤和孔水样本.
不断监测土壤的湿度.
批量溶解试验以确定PFAS土壤水分区分.
质量平衡建模采用吸附异热和空气-水接口积累.

主要成果:

增加的PFAS度主要在浅土壤和孔水 (60厘米深) 中发现.
在浅层样本中, perfluorobutanesulfonic acid (PFBS) 的平均孔水度是最高的 (124 ng/L).
在两种深度, perfluorooctanesulfonic acid (PFOS) 和 perfluorooctanoic acid (PFOA) 的平均度都很低 (<5 ng/L).
批量溶解试验表明,显著的PFAS质量耐溶解 (例如,PFOS的71%).

结论:

在研究地点,PFAS向地下迁移是有限的,其度随着深度的增加而显著下降.
吸附到空气-水界面和耐脱吸的土壤微粒是保留PFAS在不和土壤中的关键机制.
开发的质量平衡模型合理地预测了观察到的PFAS孔水度,强调了这些保留机制的重要性.

关键词:

溶解吸收歇斯底里存在接口接口接口接口接口 lysimeter lysimeter lysimeter lysimeter 是一种测光仪,用于测量光.perfluoroalkyl 酸的含量是什么

更多相关视频

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

Measuring Phosphorus Release in Laboratory Microcosms for Water Quality Assessment

Published on: July 22, 2019

Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique

Investigating Long-Distance Transport of Perfluoroalkyl Acids in Wheat via a Split-Root Exposure Technique

Published on: September 28, 2022

相关概念视频

Microbial Leaching

Microbial Leaching

Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...

Biological Treatment of Effluent and Waste Water

Biological Treatment of Effluent and Waste Water

Biological wastewater treatment relies on the metabolic activity of microorganisms to remove pollutants from sewage. In modern treatment systems, this process is organized into sequential stages that progressively reduce solid material, dissolved organic matter, and microbial contamination. Each stage plays a distinct role in improving water quality and preparing the effluent for safe discharge or reuse.Primary and Secondary TreatmentPrimary treatment is a physical process that removes large...