关于城市和织工业废水中的微塑料污染及其使用基于纤维素的方法去除的见解
Solange Magalhães1, Daniel Paciência1, João M M Rodrigues2
1University of Coimbra, CERES, Department of Chemical Engineering, 3030-790 Coimbra, Portugal.
Polymers
|October 16, 2024
概括
织行业的废水是微塑料 (MP) 的主要来源. 一种新型的生物基花剂有效地从废水中去除聚乙烯二甲 (PET) MPs,减少水污染.
科学领域:
- 环境科学 环境科学
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 塑料污染,特别是微塑料 (MPs),污染了水生环境.
- 织行业的废水是MP的重要来源.
- 污水处理厂 (WWTP) 旨在减轻污染,但仍然可以释放国会议员.
研究的目的:
- 分析和比较织工业废水中的微塑料污染与市政废水处理厂 (WWTP) 的废水.
- 为了确定这些废水中存在的MP的类型和特征.
- 开发和测试一种用于去除微塑料的新型生物基花剂.
主要方法:
- 来自织工业和市政WWTP的废水采样.
- 激光衍射光谱用于MP尺寸分析.
- 光学和光显微镜用于MP形态和类型识别.
- 用于表面电荷分析的电泳.
- 开发和测试一种化纤维素衍生物生物花剂.
主要成果:
- 聚乙烯二甲 (PET) 和聚胺是织废水中占主导地位的MP;PET在市政WWTP废水中占主导地位.
- 市政WWTP的PM清除效率 (71%) 比织工业 (55%) 高,但对整体污染的贡献更大.
- 这种新型生物基的花剂有效地花了PET MPs.
结论:
- 织工业的废水是微塑料释放到水生系统的关键途径.
- 尽管移除率更高,但市政的水上污染场可能是微塑料污染的重要贡献者.
- 一种新型的木制生物花粉剂为从废水中去除PET微塑料提供了一个有前途的解决方案.
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