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Title: A Critical Review of the Impacts of Leaking CO 2 Gas and Brine on Groundwater Quality

Abstract

Geological carbon sequestration (GCS) is a global carbon emission reduction strategy involving the capture of CO 2 emitted from fossil fuel burning power plants, as well as the subsequent injection of the captured CO 2 gas into deep saline aquifers or depleted oil and gas reservoirs. A critical question that arises from the proposed GCS is the potential impacts of CO 2 injection on the quality of drinking-water systems overlying CO 2 sequestration storage sites. Although storage reservoirs are evaluated and selected based on their ability to safely and securely store emplaced fluids, leakage of CO 2 from storage reservoirs is a primary risk factor and potential barrier to the widespread acceptance of geologic CO 2 sequestration (OR Harvey et al. 2013; Y-S Jun et al. 2013; DOE 2007). Therefore, a systematic understanding of how CO 2 leakage would affect the geochemistry of potable aquifers, and subsequently control or affect elemental and contaminant release via sequential and/or simultaneous abiotic and biotic processes and reactions is vital.

Authors:
 [1];  [2];  [1];  [1];  [1]
  1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1347881
Report Number(s):
PNNL-24897
AA7020000
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; Critical; Review; Impacts; Leaking; CO2; Brine: Groundwater; Quality

Citation Formats

Qafoku, Nikolla, Zheng, Liange, Bacon, Diana H., Lawter, Amanda R., and Brown, Christopher F. A Critical Review of the Impacts of Leaking CO2 Gas and Brine on Groundwater Quality. United States: N. p., 2015. Web. doi:10.2172/1347881.
Qafoku, Nikolla, Zheng, Liange, Bacon, Diana H., Lawter, Amanda R., & Brown, Christopher F. A Critical Review of the Impacts of Leaking CO2 Gas and Brine on Groundwater Quality. United States. doi:10.2172/1347881.
Qafoku, Nikolla, Zheng, Liange, Bacon, Diana H., Lawter, Amanda R., and Brown, Christopher F. Wed . "A Critical Review of the Impacts of Leaking CO2 Gas and Brine on Groundwater Quality". United States. doi:10.2172/1347881. https://www.osti.gov/servlets/purl/1347881.
@article{osti_1347881,
title = {A Critical Review of the Impacts of Leaking CO2 Gas and Brine on Groundwater Quality},
author = {Qafoku, Nikolla and Zheng, Liange and Bacon, Diana H. and Lawter, Amanda R. and Brown, Christopher F.},
abstractNote = {Geological carbon sequestration (GCS) is a global carbon emission reduction strategy involving the capture of CO2 emitted from fossil fuel burning power plants, as well as the subsequent injection of the captured CO2 gas into deep saline aquifers or depleted oil and gas reservoirs. A critical question that arises from the proposed GCS is the potential impacts of CO2 injection on the quality of drinking-water systems overlying CO2 sequestration storage sites. Although storage reservoirs are evaluated and selected based on their ability to safely and securely store emplaced fluids, leakage of CO2 from storage reservoirs is a primary risk factor and potential barrier to the widespread acceptance of geologic CO2 sequestration (OR Harvey et al. 2013; Y-S Jun et al. 2013; DOE 2007). Therefore, a systematic understanding of how CO2 leakage would affect the geochemistry of potable aquifers, and subsequently control or affect elemental and contaminant release via sequential and/or simultaneous abiotic and biotic processes and reactions is vital.},
doi = {10.2172/1347881},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {9}
}

Technical Report:

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