透式路面块作为一种可持续的解决方案,用于管理城市雨水中的微塑料污染
Jiwon Kong1, Seongeom Jeong1, Jieun Lee2
1Civil and Environmental Engineering, Pusan National University, Busan 46241, Republic of Korea.
The Science of the total environment
|February 4, 2025
概括
透路面系统有效地从雨水排水中去除90%以上的微塑料 (MP). 优化的毛孔结构增强了MP的保留,这对于防止水污染和保护生态系统至关重要.
科学领域:
- 环境工程 环境工程
- 材料科学 是一种材料科学.
- 水资源管理 水资源管理
背景情况:
- 微塑料 (MP) 是通过降雨沉积的大气污染物,污染水和土壤.
- 透路面系统 (PPS) 管理雨水并保留颗粒污染物.
- 缓解空中MP运输对生态系统和人类健康至关重要.
研究的目的:
- 评估不同透路面块的MP清除效率和透性.
- 研究孔隙结构对MP保留的影响.
- 了解使用计算流体动力学 (CFD) 的MP删除机制.
主要方法:
- 对于MP移除和透性进行透性路面板块的实验测试.
- 孔隙测量和X射线计算机断层扫描用于孔隙结构分析.
- 在CFD模拟中,模拟MP的传输和保留在各种孔隙结构中.
主要成果:
- 区块A,具有高透率 (1.7mm/s),实现了高于90%的聚乙烯 (PE) 和聚乙烯四甲酸 (PET) MPs 的去除.
- 较低密度的PE MP被保留得比较高密度的PET MP更有效.
- 降雨强度增加导致PM清除效率下降.
结论:
- 材料设计和CFD优化的孔隙结构显著提高了PPS在城市雨水管理中的有效性.
- 基于密度的PE和PETMP的不同运输行为,驱动保留机制.
- 电力系统为缓解城市雨水污染和推进可持续水资源管理提供了一个有希望的解决方案.
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