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关于数量化几个世纪以来石油污染土地的全球碳排放量

Kaveh Sookhak Lari¹, Greg B Davis², Trevor Bastow²

¹CSIRO Environment, Private Bag No. 5, Wembley, WA 6913, Australia; School of Engineering, Edith Cowan University, 270 Joondalup Drive, Joondalup, WA 6027, Australia; Geothermal Energy and Geofluids Group, Department of Earth Sciences, ETH Zurich, CH-8092, Zurich, Switzerland.

The Science of the total environment

|October 25, 2023

概括

石油泄漏通过自然源区枯竭 (NSZD) 将大量的碳排放到大气中. 这项研究模拟了各种燃料的NSZD,估计到2100年碳排放量将达到4-6特拉克,其中近60%已经释放.

科学领域:

环境科学环境科学
地质化学地质化学
土壤科学土壤科学

背景情况:

石油释放到地下土壤中是全球碳排放的重要来源.
在泄漏的生命周期中量化碳释放是复杂的,涉及多个物理和生物过程.
自然源区枯竭 (NSZD) 涵盖了石油成分从土壤中转化和释放为碳气体的过程.

研究的目的:

量化来自轻非水相液体 (LNAPL) 自然源区枯竭 (NSZD) 的长期碳排放.
在两种土壤类型中模拟四种主要石油碳化合物类型 (原油,柴油,喷气式燃料,汽油) 的NSZD.
开发LNAPL羽毛的命运和碳排放的预测工具.

主要方法:

利用一个经过验证的计算平台来建模长期的NSZD.
模拟了自1950年以来的石油释放事件150年的碳排放.
创建了编号图来预测LNAPL羽毛的行为和碳释放.

主要成果:

从1950年到2100年的估计总碳排放量在4至6特拉克之间.
发现近60%的总估计碳排放量已经被释放.
确定了石油成分,降解率,挥发和地下特征作为关键影响因素.

结论:

NSZD是理解和量化石油污染土壤碳排放的关键过程.
开发的建模方法和名谱为管理土壤和地下水污染提供了有价值的工具.
准确估计碳排放需要考虑地表条件和石油性质的复杂相互作用.

关键词:

碳排放排放碳排放排放排放在LNAPL中使用LNAPL.建模模型建模模型多重物理多重物理这是NSZDD.石油石油是指石油的石油.暂时的暂时的暂时的

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