微塑料是垃圾填埋场硫酸盐减少过程的可能触发因素
Shuli Guo1, Zixiao Wu1, Xianghang Li1
1Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
The Science of the total environment
|October 11, 2023
概括
微塑料 (MPs) 在垃圾填埋场中普遍存在,随着深度的增加和与硫酸盐减少相关. 这些塑料颗粒可能会引发垃圾填埋场的气味排放,这凸显了污染管理的必要性.
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:
- 垃圾填埋场造成的微塑料 (MP) 污染尚未得到充分研究.
- 垃圾填埋场是环境污染物的重要来源.
研究的目的:
- 调查垃圾填埋场环境中的微塑料的发生和特征.
- 探索微塑料和垃圾填埋场生物地化学过程之间的关系,特别是气味排放.
主要方法:
- 垃圾填埋场表面土壤和垂直资料的现场采样.
- 量化和描述微塑料的数量,大小和形状.
- 与硫酸盐和硫化物含量等化学参数的相关性分析.
主要成果:
- 在垃圾填埋场表面土壤中发现了大量的微塑料 (高达3573个物品·g-1),并且随着深度显著增加 (高达11,599个物品·g-1).
- 小尺寸 (≤10微米) 和片/形的微塑料占主导地位.
- 微塑料丰富度与硫酸盐 (SO42−) 和硫化物 (S2−) 含量之间存在显著的相关性,表明与硫酸盐减少有联系.
结论:
- 微塑料在垃圾填埋场的底层积聚,这是由于液的移动造成的.
- 微塑料可能会起到与硫酸盐减少相关的垃圾填埋场气味排放的触发作用.
- 这些发现为管理垃圾填埋场中的微塑料和气味污染提供了基础.
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