Authors / CoAuthors
Feitz, A.J. | Boreham, C. | Hortle, A. | Ransley, T.
Abstract
Poster for IAH 2013 A major concern for regulators and the public with geological storage of CO2 is the potential for the migration of CO2 via a leaky fault or well into potable groundwater supplies. Given sufficient CO2, an immediate effect on groundwater would be a decrease in pH which could lead to accelerated weathering, an increase in alkalinity and the release of major and minor ions. Laboratory and core studies have demonstrated that on contact with CO2 heavy metals can be released under low pH and high CO2 conditions (particularly Pd, Ni and Cr). There is also a concern that trace organic contaminants could be mobilised due to the high solubility of many organics in supercritical CO2. These scenarios potentially occur in a high CO2 leakage event, therefore detection of a small leak although barely perceptible could provide an important early warning for a subsequent and more substantial impact.
Product Type
nonGeographicDataset
eCat Id
77501
Contact for the resource
Custodian
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
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- External Publication
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Carbon Sequestration Science
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- Published_Internal
Publication Date
2013-01-01T00:00:00
Creation Date
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asNeeded
Topic Category
environment
Series Information
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Unknown
Parent Information
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Reference System
Spatial Resolution
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Downloads and Links
Source Information
IAH 2013 Poster Presentation