CO2 Leakage-Induced Contamination in Shallow Potable Aquifer and Associated Health Risk Assessment
Joint Authors
Xu, Tianfu
Han, Weon Shik
Kim, Chan Yeong
Park, Eungyu
Jeong, Jina
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-05
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Abstract EN
Leakage of stored CO2 from a designated deep reservoir could contaminate overlying shallow potable aquifers by dissolution of arsenic-bearing minerals.
To elucidate CO2 leakage-induced arsenic contamination, 2D multispecies reactive transport models were developed and CO2 leakage processes were simulated in the shallow groundwater aquifer.
Throughout a series of numerical simulations, it was revealed that the movement of leaked CO2 was primarily governed by local flow fields within the shallow potable aquifer.
The induced low-pH plume caused dissolution of aquifer minerals and sequentially increased permeabilities of the aquifer; in particular, the most drastic increase in permeability appeared at the rear margin of CO2 plume where two different types of groundwater mixed.
The distribution of total arsenic (∑As) plume was similar to the one for the arsenopyrite dissolution.
The breakthrough curve of ∑As monitored at the municipal well was utilized to quantify the human health risk.
In addition, sensitivity studies were conducted with different sorption rates of arsenic species, CO2 leakage rates, and horizontal permeability in the aquifer.
In conclusion, the human health risk was influenced by the shape of ∑As plume, which was, in turn, affected by the characteristics of CO2 plume behavior such as horizontal permeability and CO2 leakage rate.
American Psychological Association (APA)
Kim, Chan Yeong& Han, Weon Shik& Park, Eungyu& Jeong, Jina& Xu, Tianfu. 2018. CO2 Leakage-Induced Contamination in Shallow Potable Aquifer and Associated Health Risk Assessment. Geofluids،Vol. 2018, no. 2018, pp.1-19.
https://search.emarefa.net/detail/BIM-1157868
Modern Language Association (MLA)
Kim, Chan Yeong…[et al.]. CO2 Leakage-Induced Contamination in Shallow Potable Aquifer and Associated Health Risk Assessment. Geofluids No. 2018 (2018), pp.1-19.
https://search.emarefa.net/detail/BIM-1157868
American Medical Association (AMA)
Kim, Chan Yeong& Han, Weon Shik& Park, Eungyu& Jeong, Jina& Xu, Tianfu. CO2 Leakage-Induced Contamination in Shallow Potable Aquifer and Associated Health Risk Assessment. Geofluids. 2018. Vol. 2018, no. 2018, pp.1-19.
https://search.emarefa.net/detail/BIM-1157868
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1157868