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Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

Civil and Environmental Engineering

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Edith Cowan University

Research outputs 2022 to 2026

LNAPL

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Full-Text Articles in Engineering

On Quantifying Global Carbon Emission From Oil Contaminated Lands Over Centuries, Kaveh Sookhak Lari, Greg B. Davis, Trevor Bastow, John L. Rayner Jan 2024

On Quantifying Global Carbon Emission From Oil Contaminated Lands Over Centuries, Kaveh Sookhak Lari, Greg B. Davis, Trevor Bastow, John L. Rayner

Research outputs 2022 to 2026

Petroleum releases into the subsurface contribute to global soil carbon emissions. Quantifying releases and changes in releases of carbon from soils over the lifetime of a spill is complex. Natural source zone depletion (NSZD) of light non-aqueous phase liquids (LNAPLs) embodies all key mechanisms for transformation to carbon gases and their release from soils including partitioning, transport and degradation of petroleum components. Quantification of the interconnected behaviours of the soil microbiome, fluid flow, multi-component transport, partitioning, and biodegradation is crucial for understanding NSZD. Volatilization from LNAPL, aerobic biodegradation, methanogenesis, and heat production all lead to release of greenhouse gases to …