Potential impact of CO2 storage on subsurface microbial ecosystems and implications for groundwater quality

West, Julia M.; McKinley, Ian G.; Palumbo-Roe, Barbara; Rochelle, Christopher A.. 2011 Potential impact of CO2 storage on subsurface microbial ecosystems and implications for groundwater quality. Energy Procedia, 4. 3163-3170. https://doi.org/10.1016/j.egypro.2011.02.231

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Abstract/Summary

The success of carbon capture and storage (CCS) projects depends on the ability of storage sites to contain CO2 without leakage; and the ability to convince regulators and the general public in the safety of the technology. If leakage were to occur after formal closure of the injection site, this could be over small areas from discrete point sources, such as abandoned wells, resulting in localised high concentrations of CO2 in near-surface ecosystems. Consequently, studies of the potential environmental consequences of CCS have focused on near-surface ecosystems and, as a result, environmental impacts of localised elevated CO2 on terrestrial and marine ecosystems are areas of active research. However, a CO2 storage site, in itself, could also impact on deep subsurface microbial ecosystem and biogeochemical processes, potentially affecting groundwater quality. Using a microbial energetics approach, the significance of these impacts can be scoped with a simple evaluation tool.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	https://doi.org/10.1016/j.egypro.2011.02.231
Programmes:	BGS Programmes 2010 > Energy Science
Additional Keywords:	GroundwaterBGS, Groundwater, Groundwater quality, Subsurface disposal
NORA Subject Terms:	Biology and Microbiology Earth Sciences
Date made live:	12 May 2011 13:43 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/14188

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