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在废水通风过程中通过收集泡去除PFAS

Angel Chyi En We¹, Anthony D Stickland², Bradley O Clarke³

¹Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia; Australian Laboratory of Emerging Contaminants, School of Chemistry, The University of Melbourne, Victoria 3010, Australia.

Journal of hazardous materials

|March 20, 2025

概括

废水处理厂的通风通过泡分化去除和多基物质 (PFAS). 这一过程有效地去除了长链PFAS,这表明对去除泡的修改可以提高治疗效果.

科学领域:

环境工程环境工程
水处理技术水处理技术
环境化学环境化学

背景情况:

在废水处理厂 (WWTP) 中,通风对于有机物和营养物质的去除至关重要.
和多醇基物质 (PFAS) 是持久的环境污染物,需要有效的清除策略.
传统的WWTP可能无法充分解决PFAS污染问题.

研究的目的:

为了研究泡分成的可行性,在空气的PFAS去除在WWTPs.
评估 PFAS 清除效率和在混合液体悬浮液中与各种悬浮固体进行缩.
阐明PFAS去除和在水和固体相之间分配的机制.

主要方法:

使用了来自WWTP的实际混合液体悬浮剂.
模拟的WWTP相关的PFAS和总悬浮固体度.
进行了泡分离实验和质量平衡分析.
分析了 PFAS 在水和固体阶段的去除.

主要成果:

泡分离实现了70-100%的 PFAS 水相去除,其中 perfluorinated 碳数 ≥6.
从水相中去除短链PFAS (< 6) 的比例不到20%.
固相PFAS的去除率在20%至60%之间,因PFAS物种而异.

结论:

风化合泡分化是一种可行的方法,可以从废水中去除特定的PFAS.
处理效率取决于PFAS链的长度和相位分布.
有可能修改气化生物反应器,以结合去除泡以进行增强的PFAS处理.

关键词:

活性污泥活动污泥空气 - 液体接口泡分成部分的方法混合液体是混合液体.丰富PFAS的方法

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