在不同的老化垃圾填埋场矿化中的微塑料污染
Fangfang Lou1, Jun Wang2, Jingyuan Sima1
1State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China.
Waste management (New York, N.Y.)
|June 6, 2025
概括
垃圾填埋场释放微塑料 (MP),造成环境风险. 这项研究量化了中国垃圾填埋场的国会议员,揭示了污染因填埋场类型,年龄和经济地位而异,需要有针对性的缓解策略.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 污染控制 污染控制
背景情况:
- 国内垃圾填埋场是微塑料 (MP) 的重要来源和沉积点.
- 不适当的垃圾填埋管理可以释放国会议员,导致二次污染.
- 系统的风险评估对于了解MP环境影响至关重要.
研究的目的:
- 调查和量化各种经济地区的垃圾填埋场中的微塑料污染.
- 评估垃圾填埋场类型,年龄和区域经济地位对MP污染的影响.
- 为评估MP污染风险提供定量基础,并为缓解策略提供信息.
主要方法:
- 在中国东南地区调查了三个垃圾填埋场 (两个卫生垃圾填埋场,一个非正式垃圾填埋场).
- 收集了68个矿物废弃物样本.
- 使用溶剂提取和Py-GC/MS的量化微塑料 (聚乙烯,聚烯,聚烯).
主要成果:
- 平均MPs度在0.44至1.56g/kg (质量) 和0.105至0.397g/m3 (体积) 之间.
- 卫生垃圾填埋场由于长时间的退化,显示了更高的MPs水平.
- 垃圾填埋场的MP较低,但由于管理不善,传播威胁较高;污染风险与垃圾填埋场的年龄和区域经济有关.
结论:
- 垃圾填埋场中的微塑料污染受垃圾填埋场类型,年龄和区域经济状况的影响.
- 调查结果强调需要有针对性的策略,以减轻垃圾填埋场释放的微塑料.
- 这项研究为垃圾填埋场微塑料污染的评估提供了定量基础.
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