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功能化生物炭用于在水性介质中去除聚和 perfluoroalkyl 物质

Sepideh Nasrollahpour¹, Rama Pulicharla¹, Satinder Kaur Brar¹

¹Department of Civil Engineering, Lassonde School of Engineering, York University, Toronto, ON, Canada.

|March 31, 2025

概括

生物炭有效地从水中去除有害的聚和 perfluoroalkyl 物质 (PFAS). 诸如pH值,颗粒大小和PFAS链长度等因素影响其吸附效率,长链PFAS更容易被清除.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
化学化学化学

背景情况:

聚和 perfluoroalkyl 物质 (PFAS) 是持久性环境污染物,具有重大健康风险.
生物炭是一种具有成本效益和环保的吸附剂,具有很高的污染物去除能力.
了解生物炭在去除PFAS方面的有效性对于环境修复至关重要.

研究的目的:

审查生物炭的应用,以去除聚和 perfluoroalkyl 物质 (PFAS).
探索生物炭分类,功能化以及影响PFAS吸附的因素.
评估单个和混合PFAS溶液中的生物炭的性能.

主要方法:

关于生物炭用于去除PFAS的应用的文献审查.
对生物炭特性 (热解温度,颗粒大小,剂量) 和它们的影响进行分析.
影响吸附的环境因素 (pH,PFAS链长度) 的调查.

主要成果:

长链PFAS (例如,PFOS,PFOA) 的吸附度高于短链PFAS.
最佳条件包括较低的pH值,较小的生物炭颗粒大小和特定的热解温度.
与混合溶液相比,生物炭在单溶液系统中显示出更高的PFAS去除效率.

结论:

生物炭是消除持久性PFAS污染物的有希望的材料.
生物炭功能化和优化的应用条件可以增强PFAS吸附.
在复杂的环境矩阵中对生物炭-PFAS相互作用进行进一步的研究是有必要的.

关键词:

环境化学环境化学环境科学环境科学

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