再利用挖掘土壤流的环境效益:卢森堡的案例
Benedetto Rugani1, Claudio Petucco2
1RDI Unit on Environmental Sustainability Assessment and Circularity (SUSTAIN), Luxembourg Institute of Science and Technology (LIST), 5 Avenue des Hauts Fourneaux, L-4362 Esch-sur-Alzette, Luxembourg; Research Institute on Terrestrial Ecosystems (IRET), National Research Council of Italy (CNR), Via G. Marconi 2, I-05010 Porano, TR, Italy.
The Science of the total environment
|December 6, 2024
概括
在卢森堡,挖掘土壤的管理带来了环境挑战. 将土壤改为基于自然的解决方案 (NbS) 显著减少了环境影响和垃圾填埋场的使用,支持循环经济目标.
科学领域:
- 环境科学 环境科学
- 废物管理 废物管理
- 循环经济是一个循环经济.
背景情况:
- 建筑活动产生了大量的挖掘土壤,这给废物管理带来了挑战,特别是在卢森堡,由于人均土壤废物量高,填埋能力有限.
- 目前对挖掘土壤的管理实践可能会导致严重的环境影响.
研究的目的:
- 以生命周期的角度评估卢森堡现有的挖掘土壤管理对环境的影响.
- 将当前的做法与其他方案进行比较,包括将挖掘土壤重新用于以自然为基础的解决方案 (NbS).
主要方法:
- 开发和应用一个特设的空间解析模型来评估环境影响.
- 生命周期评估 (LCA) 方法将当前做法与NbS场景进行比较.
主要成果:
- 替代管理实践,特别是运输距离在50公里以下的运输实践,显著减少了环境影响.
- 根据影响指标,为NbS重新利用挖掘土壤可以将整体环境足迹减少约18%至92%.
- 通过这些替代策略,可以减少对垃圾填埋的依赖和减轻环境负担.
结论:
- 这些发现支持在卢森堡实施循环经济战略,用于挖掘土壤回收.
- 为NbS项目重新利用挖掘土壤作为基板,为减少环境影响提供了一条可行的途径.
- 绿地和休区的开发被确定为回收挖掘土壤的有益应用.
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