使用凝固和膜组合从洗衣废水中去除微塑料:实验室规模研究
Thi Trang Luu1,2, Dai Quyet Truong1, Van Nam Nguyen2
1Faculty of Engineering and IT, University of Technology Sydney (UTS), Sydney, NSW 2007, Australia.
Membranes
|February 25, 2025
概括
洗衣废水含有高水平的微塑料 (MP). 结合凝血与超过 (UF) 膜过,可以有效地去除MPs,显著减少污染.
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) 污染是一个关键的全球环境问题.
- 洗衣废水是MP的主要来源,目前的清除方法效率不佳.
- 了解MP的特征和去除机制对于有效治疗至关重要.
研究的目的:
- 调查家用洗衣废水中MPs的发生和特征.
- 为了评估凝血和超过 (UF) 膜过的联合有效性,以去除MP.
- 阐明在凝血过程中参与MP去除的机制.
主要方法:
- 在洗衣废水中分析微塑料的存在和特征.
- 使用化和铁化进行凝固的应用.
- 超过 (UF) 膜过后凝固的整合.
- 福里埃变换红外光谱 (FTIR) 用于机械分析.
主要成果:
- 洗衣废水含有900011000个MPs/L,主要是纤维 (42.6%) 和聚 (68.2%).
- 凝固实现了高去除效率 (91.7%与AlCl3,98.3%与FeCl3),电荷中和是主要的机制.
- UF膜过以96 ± 2%的效率去除了剩余的纤维和低密度的MP,将度降低到60颗/L.
结论:
- 凝固和UF膜过具有协同效应,可以有效地从洗衣废水中去除微塑料.
- 该研究提供了有关MP去除机制和有效治疗策略的宝贵见解.
- 这种结合的方法为推进污水处理技术的发展提供了一个有希望的解决方案,以打击PM污染.
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