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Comparing Simulated Shallow Subsurface Spills of Diluted Bitumen and Conventional Crude Oil by Nicholas Utting; Behnam Namsechi; Craig McMullen; James Brydie; Jason M.E. Ahad is a Environmental Science article available to read on EtoBox.

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Increased oil production in Canada has resulted in proposals to extend or develop new oil pipelines. Many of these proposals have been met by concerns from the public over potential environmental impacts related to construction and the potential for oil spills to negatively affect groundwater quality. Crude oil sourced from the Alberta oil sands represents a significant proportion of this increase in production. This crude oil is produced as bitumen, which is subsequently diluted with light hydrocarbons to lower viscosity to allow for pipeline transport producing diluted bitumen. In this study, we pumped water through tanks filled with sand to simulate groundwater flow. Tanks were injected with either conventional crude or diluted bitumen to simulate a crude oil spill from a pipeline rupture occurring below the water table representing a pipeline river crossing scenario. Water samples were collected from the downstream end of the tanks throughout the experiment period (∼two months). Compared to water quality guidelines, effluent waters from both conventional crude and diluted bitumen tanks contained elevated concentrations of dissolved organic compounds, particularly benzene, ethyl

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Author

Nicholas Utting; Behnam Namsechi; Craig McMullen; James Brydie; Jason M.E. Ahad

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Environmental Science (Physical Sciences)