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Garrett W Link¹, Donald M Reeves¹, Daniel P Cassidy¹

¹Department of Geological and Environmental Sciences, Western Michigan University, 1903 W. Michigan Ave, Kalamazoo, MI 49008-5241, USA.

Journal of hazardous materials

|November 3, 2023

概括

生物固体中的和多基基物质 (PFAS) 显示出逻辑正常的度分布. 长链PFAS及其替代品导致废水处理厂固体的变化.

科学领域:

环境化学环境化学
环境科学环境科学
公共卫生公共卫生

背景情况:

和多基基物质 (PFAS) 是广泛使用的具有环境持久性的合成化学品.
废水处理厂 (WWTP) 的生物固体可以积累PFAS,需要了解它们的命运和运输.
密歇根州的WWTP为生物固体中的PFAS分布提供了有价值的案例研究.

研究的目的:

描述密歇根州生物固体中PFAS度,分布和变化的趋势.
确定影响生物固体污染的关键PFAS化合物和功能组.
探索在经过处理的废水固体中导致PFAS变化的因素.

主要方法:

来自密歇根州190个WWTP的350个生物固体样本的分析.
单个和总PFAS (Σ24 PFAS) 度的量化.
统计分析以确定度分布,并确定变化源.

主要成果:

Σ24 PFAS度遵循了逻辑正常分布,平均为108 ± 277 ng/g干重.
硫酸PFAS (71%) 在生物固体中占据主导地位,超过碳酸PFAS (29%).
长链PFAS和遗留化合物的替代品是度变化的主要驱动因素.

结论:

生物固体中的PFAS度非常可变,受到化合物疏水性和WWTP过程的影响.
短链PFAS和硫胺基前体对PFAS总体负担做出了重大贡献.
预测PFAS在WWTP中的分区仍然很复杂,需要进一步调查,而不仅仅是简单的分区系数.

关键词:

土地申请是关于土地的申请.这是PFAAA.在PFOS系统中,我们可以污水污泥的污水污泥是污水中的污泥.硫胺是一种硫胺.

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