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Updated: Jul 1, 2026

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Preparation of Hydrophobic Metal-Organic Frameworks via Plasma Enhanced Chemical Vapor Deposition of Perfluoroalkanes for the Removal of Ammonia

Published on: October 10, 2013

在废弃物封装内组件上对 perfluoroalkyl 物质 (PFAS) 的吸附和脱附

Elissar Mikhael¹, Abdelmalek Bouazza¹, Will P Gates²

¹Department of Civil Engineering, Monash University, 23 College Walk, Melbourne, VIC, 3800, Australia.

Journal of environmental management

|April 12, 2025

概括

这项研究评估了垃圾填埋上每醇基物质 (PFAS) 的吸收,发现活性炭修正案对长链PFAS有效. 离子交换树脂可能需要去除短链PFAS.

科学领域:

环境工程环境工程
地质技术工程地质技术工程
环境化学环境化学

背景情况:

perfluoroalkyl物质 (PFAS) 是在垃圾填埋场的液中发现的持久性环境污染物.
有效制PFAS对于防止地下水和土壤污染至关重要.
目前的垃圾填埋料材料需要评估它们在吸收各种PFAS方面的有效性.

研究的目的:

用各种垃圾填埋料材料研究六种PFAS化合物的吸附动力学,同温和和溶解.
评估垃圾填埋场液对选定的内部件的吸附性能的影响.
为了确定PFAS减弱的最佳内材料和修改.

主要方法:

使用单和多化合物PFAS溶液与不同填埋料材料进行了吸附实验.
动力学和等温模型 (双指数,伪二次,弗洛伊德利希,兰格穆尔) 应用于分析吸附数据.
评估了垃圾填埋场液成分对PFAS吸附的影响.

主要成果:

位数和伪二次动力学,以及弗洛伊德利希异热模型,最好地描述了PFAS吸附.
吸附能力的顺序是:离子交换树脂 > 活性碳修改的土 > 粘土 > 聚烯地质织物 > 土 > 聚无地质织物.
吸附率随着PFAS碳链长度的增加而增加;硫酸盐的吸附率比碳酸更强. 液减少了吸收.

结论:

活性炭修改本托尼特在减少垃圾填埋场中长链PFAS迁移方面显示出有希望.
建议使用离子交换树脂来有效减弱短和超短PFAS化合物.
在垃圾填埋系统中,选择和修改料对于管理PFAS至关重要.

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