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研究有机肥中的塑料:为期2年的比较研究

Daniela Thomas¹, Kristof Dorau², Elke Bloem³

¹Johann Heinrich von Thünen Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries, Institute of Agricultural Technology, Bundesallee 47, 38116, Braunschweig, Germany.

|December 1, 2025

概括

有机肥料,如堆肥,将微塑料引入土壤. 这项研究量化了各种肥料中的塑料污染,揭示了生物废物堆肥的塑料负载最高,突出了需要更严格的监测.

科学领域:

环境科学环境科学
土壤科学土壤科学
材料科学材料科学材料科学

背景情况:

有机肥料 (堆肥,污水污泥) 是农业土壤中微塑料污染的重要来源.
潜在的风险包括地下水泄漏,土壤生物的摄入和植物的吸收,影响食物链.
目前对不同肥料中的塑料数量,聚合物类型和颗粒大小分布的理解不足.

研究的目的:

在两年内调查和量化七种有机肥料中的塑料污染.
分析聚合物组成,颗粒大小分布和异物表面积.
以应用率为基础,对每平方米塑料负载进行背景化.

主要方法:

手动分析从肥料堆中视觉隔离的异物颗粒.
使用弱化总反射率与富里埃变换红外光谱 (ATR-FTIR) 和siMPle.com识别聚合物.
计算每平方米的塑料负载,考虑到堆表面积和应用率.

主要成果:

在分析的肥料中,塑料占识别的异物质的82%.
生物废物堆肥在2023年显示了最高的塑料质量 (1.51g/m2),而绿色废物堆肥和污水污泥的含量较低.
污染水平的年比年显著变化被观察到,这使得最终的趋势结论变得复杂.

结论:

输入材料和加工质量显著影响有机肥中的异物含量.
进一步的长期研究对于制定塑料污染监测指南和监管框架至关重要.
需要更严格的监测协议,以减轻有机肥中的塑料对环境的影响.

关键词:

农业农业农业农业堆肥堆肥是为了堆肥.消化器可以消化.聚合物的聚合物.这是泥泥.废弃物废弃物废弃物

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