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从废物处理设施的排水中取取对基和多基物质的样本

Mio Pettersson¹, Ingrid Ericson Jogsten¹, Patrick van Hees²

¹Man-Technology-Environment Research Centre, Department of Science and Technology, Orebro University, 701 82, Orebro, Sweden.

|August 8, 2024

概括

复合采样是一种可行的取样替代方案,用于监测废物管理设施排水中的和多基物质 (PFAS). 这两种方法都有效地确定了关键的PFAS化合物,尽管采集样本产生了更高的度.

科学领域:

环境化学环境化学
分析化学分析化学
废物管理废物管理

背景情况:

和多基基物质 (PFAS) 在消费和工业产品中广泛使用,导致它们在废物流中存在.
废物管理设施接收各种含有PFAS的材料,需要对这些持久污染物实施有效的监测策略.
关于废物管理场所内PFAS度和配置文件的空间变异性的数据有限.

研究的目的:

调查复合采样作为一种潜在的替代品,用于PFAS监测的传统抓取采样.
为了比较PFAS度和使用抓取与复合样本采样方法获得的同类样本概况.
评估复合采样的适用性,以分析排水中的可提取性有机 (EOF).

主要方法:

从瑞典废物处理设施的八个分区收集了157个排水样本.
对23种特定的PFAS化合物和可提取的有机 (EOF) 的分析样本.
采用抓取样本 (n=32) 和复合样本 (n=8,每个组合16个过样本) 进行比较分析.

主要成果:

PFAS度在<1至22μg/L之间,采集样本通常比复合样本度更高.
短链 perfluoroalkyl sulfonic 酸 (C4-C5) 和碳酸 (C4-C6) 是主要的 PFAS 分类.
EOF水平达到~140μg/L F,其中质量平衡无法计算的99%;采样方法之间的差异在EOF中更大.

结论:

复合采样与抓取采样相似,用于废物设施排水中的特定PFAS化合物的目标分析.
十一个关键的PFAS化合物占检测到的PFAS总度的大部分.
在EOF分析中观察到的采样方法之间的差异可能源于样品的准备或排放的变化.

关键词:

复合采样采样复合采样采样欧洲办公室欧洲办公室抓取采样采集抓取采样在PFAS中,有很多方法.废水是废水,废水就是废水.水水水水水,这是一个很好的方法.

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