Angol nyelvű Tudományos Szakcikk (Folyóiratcikk)

- SJR Scopus - Earth-Surface Processes: Q2

Azonosítók

- MTMT: 3425458
- DOI: 10.1007/s12665-018-7637-6
- WoS: 000436366700002
- Scopus: 85049586150

Szakterületek:

CO2 geological storage is a transitional technology for the mitigation of climate
change. In the vicinity of potential CO2 reservoirs in Hungary, protected freshwater
aquifers used for drinking water supplies exist. Effects of disaster events of CO2
escape and brine displacement to one of these aquifers have been studied by kinetic
1D reactive transport modelling in PHREEQC. Besides verifying that ion concentrations
in the freshwater may increase up to drinking water limit values in both scenarios
(CO2 or brine leakage), total porosity of the rock is estimated. Pore volume is expected
to increase at the entry point of CO2 and to decrease at further distances, whereas
it shows minor increase along the flow path for the effect of brine inflow. Additionally,
electrical conductivity of water is estimated and suggested to be the best parameter
to measure for cost-effective monitoring of both worst-case leakage scenarios.
Solution composition (left) and mineral reactions (right) on days 110 (top) and 330
(bottom) in kinetic 1D reactive transport model of the reference case, i.e. freshwater
flow through freshwater aquifer.
Solution composition (left) and mineral reactions (right) on days 110 (top) and 330
(bottom) in kinetic 1D reactive transport model of the reference case, i.e. freshwater
flow through freshwater aquifer.
…
and follows Equation 2.
and follows Equation 2.
…
Solution composition (left) and mineral reactions (right) on days 110 (top) and 330
(bottom) in kinetic 1D reactive transport model of CO 2 leakage scenario, i.e. CO
2 saturated freshwater flow through freshwater aquifer.
Solution composition (left) and mineral reactions (right) on days 110 (top) and 330
(bottom) in kinetic 1D reactive transport model of CO 2 leakage scenario, i.e. CO
2 saturated freshwater flow through freshwater aquifer.
…
Solution composition (left) and mineral reactions (right) on days 110 (top) and 330
(bottom) in kinetic 1D reactive transport model of brine leakage scenario, i.e. 10%
saline+90% freshwater mix flow through freshwater aquifer.
Solution composition (left) and mineral reactions (right) on days 110 (top) and 330
(bottom) in kinetic 1D reactive transport model of brine leakage scenario, i.e. 10%
saline+90% freshwater mix flow through freshwater aquifer.
…
Estimated total porosity change in the aquifer on days 110 (top) and 330 (bottom)
based on a difference between kinetic 1D reactive transport model of the reference
and that of CO 2 (left) and brine (right) leakage scenarios i.e. CO 2 saturated freshwater
and 10% saline+90% freshwater mix flows through freshwater aquifer, respectively.+3
Estimated total porosity change in the aquifer on days 110 (top) and 330 (bottom)
based on a difference between kinetic 1D reactive transport model of the reference
and that of CO 2 (left) and brine (right) leakage scenarios i.e. CO 2 saturated freshwater
and 10% saline+90% freshwater mix flows through freshwater aquifer, respectively.
…
Figures - uploaded by Zsuzsanna Szabó-Krausz

2021-11-29 15:20