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在十个饮用水处理设施和配送系统中去除微塑料
Charles Balkenbusch1, Judith Glienke1, Yuhao Wu1
1Department of Civil and Mineral Engineering, University of Toronto, Toronto, ON Canada.
概括
饮用水处理厂清除超过97.5%的微塑料 (>2微米),主要通过过. 未经处理的源水含有高水平的微塑料,其中常见的类型包括聚烯和聚乙烯.
科学领域:
- 环境科学 环境科学
- 水处理技术 水处理技术
- 材料科学 材料科学 材料科学
背景情况:
- 饮用水中的微塑料污染是一个越来越令人担忧的问题.
- 缺乏用于微塑料分析的标准化方法,阻碍了对比研究.
- 了解水处理中微塑料的去除对于公众健康至关重要.
研究的目的:
- 量化城市饮用水处理设施中微塑料清除效率.
- 描述源水和配送系统中的微塑料度和类型.
- 评估不同处理过程在去除微塑料的有效性.
主要方法:
- 从十个饮用水处理设施抽取源水,处理水和配电系统水的样本.
- 使用标准化分析技术对微塑料 (>2μm) 的隔离和表征.
- 使用光谱学识别聚合物类型.
主要成果:
- 饮用水处理设施实现了超过97.5%的微塑料去除.
- 化学辅助颗粒介质过和超过是关键的去除过程.
- 未经处理的源水显示出高度的微塑料 (11937185颗粒/L).
- 聚烯,聚乙烯,聚胺和塑料共聚合物是最常见的微塑料类型.
结论:
- 市政饮用水处理是有效的去除显著大多数的微塑料.
- 源水质量显著影响饮用水中的微塑料含量.
- 这些发现可以为监管发展提供信息,并改善微塑料清除策略.
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