雨水过系统中的轮胎磨损颗粒和聚乙烯微塑料之间的区别:从老化过程,常规污染物去除和微生物群落的角度来看
Cong Men1, Yuting Ma2, Jing Liu3
1School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-Oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, 100083, China; State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, China.
Environmental pollution (Barking, Essex : 1987)
|August 15, 2024
概括
轮胎磨损颗粒 (TWPs) 比传统的微塑料 (MP) 更多地对雨水过产生负面影响. TWP阻碍了污染物去除,并损害了微生物群落,与MP不同,MP可以提供好处.
科学领域:
- 环境科学 环境科学
- 水的质量 水的质量
- 环境化学环境化学
背景情况:
- 轮胎磨损颗粒 (TWPs) 在雨水排水中普遍存在,通常被归类为微塑料 (MP).
- 与传统的MP相比,TWPs的独特特性 (表面特征,化学成分,吸附,液) 表明其对雨水过的影响不同.
- 对于TWPs对过系统中有机物,酸盐和的去除的影响尚不清楚.
研究的目的:
- 调查和比较老式轮胎磨损颗粒 (TWPs) 和老式聚乙烯微塑料 (PEMPs) 对雨水过性能的影响.
- 评估TWP和PEMP对传统污染物 (有机物,酸盐,) 的去除的影响.
- 评估TWPs和PEMPs对微生物社区结构和过系统内的多样性的影响.
主要方法:
- 模拟的雨水过系统使用33个柱子与5个污染水平的老年PEMPs和老年TWPs.
- 在紫外线衰老后分析了老化的PEMP和TWP的特定表面积.
- 在不同的污染场景下监测污染物去除效率和表征微生物群落.
主要成果:
- 紫外线老化对TWPs的影响小于PEMPs;老化的PEMPs比未老化的TWPs具有显著更高的特定表面积.
- 强化的老化PEMP污染通常改善了污染物去除,而老化的TWP污染显示了相反的,有害的趋势.
- 老年PEMP/TWP的轻微污染 (0.01-0.1%) 增强了微生物的丰富性和多样性,但更高的水平是有害的,对微生物社区结构有明显的影响.
结论:
- 轮胎磨损颗粒 (TWPs) 对雨水过系统的危害比传统的聚乙烯微塑料 (PEMPs) 更大.
- 由于TWP的独特特性,这会对过系统中的污染物去除和微生物健康产生负面影响.
- 未来的研究和管理策略必须将TWP与MP区分开来,并考虑它们独特的环境影响.
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