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石灰对从碳化合物污染的构造性工业溶中浸出的多环芳的作用

Nicolas Martin¹, Thibaut Le Guet¹, Fabrice Dupuy¹

¹Limoges University, E2Lim UR 24133, 123 av. Albert Thomas, Limoges, Cedex, 87060, France.

Environmental pollution (Barking, Essex : 1987)

|May 2, 2024

概括

活有效地减少受污染的土壤和液中的多环芳 (PAHs). 这种土壤修复方法通过限制二氧化碳排放和资源使用,提供了一种可持续的方法.

科学领域:

环境科学环境科学
土壤科学土壤科学
整治技术整治技术

背景情况:

土壤被多环芳 (PAH) 污染给环境带来了重大风险.
传统的土壤稳定和固化方法被广泛用于补救.
有限的研究存在于使用热用于受PAH污染的土壤整治.

研究的目的:

调查生和其他剂在降低受污染土壤中PAHs的有效性.
评估剂对PAH出水中的影响.
评估基于生的土壤修复的环境可持续性.

主要方法:

用 (CaO),水合石灰 (Ca(OH) 2 和碳酸 (CaCO3) 1% (w:w) 处理了一块含PAH的土壤.
浸出处理的土壤样本在水中的固体液体比率为10.
分析了土壤和液的度,包括 (FLU), (PHE), (FLT) 和 (PYR).

主要成果:

石灰剂在土壤中的FLU和PHE降低了高达28.88%,但对FLT和PYR的影响很小.
所有的剂都显著降低了PAH漏,FLU和PHE的减少率为100%.
快在减少4循环PAHs (FLT和PYR) 浸出率方面最有效,超过70%.

结论:

热处理 (1% w:w) 是减少受污染土壤中的PAH并减轻其移动性的有前途的技术.
封装,挥发和氧化等机制可能有助于减少PAH.
这种补救策略通过潜在地限制二氧化碳排放和资源开发来提高环境可持续性.

关键词:

泄漏泄漏是一种泄漏.石灰石灰的使用方法这些PAH是PAH.整治整治整治整治土壤土壤土壤.稳定/固化的过程.

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