不可避免的废物成分对微塑料释放和填埋场硫酸盐减少的影响
Ying Hu1, Xianghang Li1, Dongsheng Shen1
1Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Engineering Research Center of Non-ferrous Metal Waste Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
Waste management (New York, N.Y.)
|April 10, 2025
概括
生物降解废物显著增加了垃圾填埋场中的微塑料 (MP) 释放和硫酸盐减少. 管理废物成分和水对于控制这些污染物至关重要.
科学领域:
- 环境科学 环境科学
- 地质化学 地质化学
- 废物管理 废物管理
背景情况:
- 垃圾填埋场产生微塑料 (MP) 污染,并促进硫酸盐减少过程.
- 废物组成,MP释放和硫酸盐减少之间的相互作用仍然不完全理解.
研究的目的:
- 在模拟的垃圾填埋环境中调查废物成分,微塑料释放和硫酸盐减少的共同调节机制.
- 量化生物降解废物对MP释放和硫酸盐减少的影响.
主要方法:
- 模拟的垃圾填埋场实验与不同的废物组成 (高与低生物降解性).
- 监测微塑料的释放,硫酸盐度和浸出物特性.
- 对有机物和硫酸盐减少对二次MP释放的协同作用的分析.
主要成果:
- 在高生物降解性废物群体中观察到更高的MP释放和硫酸盐消耗.
- 生物降解废物对MP总释放量 (17.42%) 贡献很大.
- 高生物降解性废物产生的MP是低生物降解性废物产生的2.75-2.38倍.
结论:
- 生物降解废物是微塑料释放的关键来源,加剧了垃圾填埋场的污染.
- 液循环加剧了MP释放和硫酸盐减少之间的合.
- 废物来源分类和漏法规被提议用于垃圾填埋场的协调污染控制.
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