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微塑料在透路面中的去除和命运:一个实验性的层次分析

Eduardo García-Haba¹, Alba Benito-Kaesbach², Carmen Hernández-Crespo¹

¹Instituto Universitario de Ingeniería del Agua y Medio Ambiente, Universitat Politècnica de València, Camí de Vera s/n, 46022 València, Spain.

The Science of the total environment

|April 23, 2024

概括

透路面有效地捕获城市排水中的微塑料 (MP) 和轮胎磨损颗粒 (TWP). 这些系统实现了高保留率,主要是在它们的表面和地质织物层上,减轻了水道中的污染.

科学领域:

环境科学环境科学
土木工程土木工程是指土木工程.
材料科学是一种材料科学.

背景情况:

微塑料 (MP) 污染在城市环境中越来越令人担忧,影响生态系统和人类健康.
雨水排水和道路灰尘是微塑料运输到水体的主要途径.
可持续城市排水系统 (SuDS),如通透路面,为污染物保留提供了潜在的解决方案.

研究的目的:

在实验室条件下,评估透互锁混凝土路面 (PICP) 和多孔混凝土路面 (PCP) 的微塑料保留效率.
量化模拟城市排水和路面排水中的微塑料和轮胎磨损颗粒 (TWP) 水平.
研究在路面层中微塑料的分布和积累.

主要方法:

表面污染积累和地中海降雨条件的实验室规模模拟.
分析道路灰尘,雨水排放和路面透的废水中的微塑料和TWP度.
在路面层内微塑料分布的量化 (PICP和PCP).

主要成果:

道路灰尘和排水中的微塑料含量很高 (分别为4762 ± 974 MP/kg和23.90 ± 17.40 MP/L).
透路面实现了高的微塑料保留效率,从89%到99.6%不等.
微塑料主要聚集在路面表面和地质织物层中,在废水中常见的较小碎片 (<0.1毫米).

结论:

透气路面是捕获微塑料和来自城市环境的轮胎磨损颗粒的高效工具.
表面和地质织物层在透路面系统中保留微塑料方面发挥着至关重要的作用.
这项研究提供了对微塑料动员和城市污染减缓策略的宝贵见解.

关键词:

微塑料是一种微塑料.透的路面是可以通透的.道路上的灰尘和沉积物.可持续的城市排水系统轮胎的磨损颗粒可能是轮胎的磨损颗粒.城市的排水.

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