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Chemical impacts of subsurface CO2 and brine on shallow groundwater quality

Journal Article · · Chemosphere
Leakage from geologic CO2 sequestration (GCS) sites to overlying shallow drinking water aquifers is a tangible risk. A primary purpose of this study is to assess the potential impacts of CO2 leakage into a fresh-water aquifer with associated CO2-water-sediment interactions. Here, the study site is the Ogallala aquifer overlying an active demonstration-scale GCS site in north Texas, USA. Using the results of combined batch experiments and reactive transport simulations, we discuss the effects of salinity on potential trace metal release and the potential for groundwater quality recovery after leakage ceases.
Research Organization:
New Mexico Institute of Mining and Technology, Socorro, NM (United States)
Sponsoring Organization:
USDOE Office of Fossil Energy and Carbon Management (FECM)
Grant/Contract Number:
FC26-05NT42591
OSTI ID:
2418103
Journal Information:
Chemosphere, Journal Name: Chemosphere Journal Issue: C Vol. 321; ISSN 0045-6535
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (33)

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