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Updated: Jul 22, 2025

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饮用水厂是否保留了微塑料? 使用拉曼微光谱学的探索性研究.

Luca Maurizi1, Lucian Iordachescu1, Inga V Kirstein2

  • 1Department of the Built Environment, Aalborg University, Thomas Manns Vej 23, 9220, Aalborg, Denmark.

Heliyon
|July 24, 2023
PubMed
概括

丹麦一家饮用水厂以43.2%的计数效率和75.1%的质量效率去除了微塑料 (MP). 较小的MP (1-5μm) 被保留的效率较低,这表明可能从植物组件中释放出来.

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科学领域:

  • 环境科学 环境科学
  • 水处理技术 水处理技术
  • 分析化学 分析化学

背景情况:

  • 微塑料 (MP) 污染在饮用水源中越来越令人担忧.
  • 了解水处理厂的清除效率对于公众健康至关重要.
  • 以前的研究通常集中在较大的微塑料颗粒上.

研究的目的:

  • 量化丹麦一家饮用水处理厂的微塑料 (MPs) 清除到1μm的数量.
  • 根据粒子计数和质量来评估MP去除的效率.
  • 调查MP大小对保留效率的影响.

主要方法:

  • 拉曼微光谱法 (μRaman) 用于MP量化.
  • 在连续五天内,从入口和出口收集了水样.
  • 采用一台定制的过装置和1微米钢波器,每样处理大约1立方米的水.

主要成果:

  • 处理过的水中平均含有1.4 MP计数/L (4 pg/L).
  • 总体治疗效率为MP数量的43.2%和MP质量的75.1%.
  • 在较小的MP (5微米以下41.1%),与较大的MP (79.6%以上10微米) 相比,保留效率显著下降.
  • 在MP保留的变化表明,可能会从工厂组件中释放小MP.
关键词:
饮用水 饮用水 饮用水微塑料是一种微塑料.纳米塑料是一种纳米塑料.塑料污染问题 塑料污染问题拉曼微光谱学 拉曼微光谱水的质量 水的质量

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结论:

  • 饮用水处理厂在去除微塑料方面表现出适度的效率.
  • 较小的微塑料颗粒 (<5微米) 带来更大的挑战去除.
  • 植物内部部件可能释放的纳米塑料 (NP) 需要进一步调查.