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Table 3 Relevant ion concentrations of the injected tap (’tap water DGF’) and aquifer water used in the field experiment, and the tap water used in the autoclave experiments (’tap water MUC’)
Parameter | Tap water DGF | Aquifer water | Tap water MUC |
|---|---|---|---|
T, \(^{\circ }\hbox {C}\) | 13 | 23 | 19 |
pH, - | 7.43 | 7.01 | 7.61 |
Redox, mV | \(-\)253 | \(-\)146 | \(-\)264 |
TDS,mg/L | 525 | 922 | 391 |
\(\hbox {Na}^{+}\), mmol/L | 0.18 | 7.7 | 0.16 |
\(\hbox {K}^{+}\), mmol/L | 0.02 | 0.40 | 0.02 |
\(\hbox {Ca}^{2+}\), mmol/L | 1.9 | 1.1 | 1.9 |
\(\hbox {Mg}^{2+}\), mmol/L | 1.4 | 0.97 | 0.75 |
\(\hbox {Ba}^{2+}\), mmol/L | 0.0002 | 0.0017 | 0.0003 |
\(\hbox {Sr}^{2+}\), mmol/L | 0.0018 | 0.011 | 0.016 |
\(\hbox {Zn}^{2+}\), mmol/L | 0.00001 | 0.00207 | 0.00028 |
\(\hbox {Cl}^{-}\), mmol/L | 0.40 | 4.1 | 0.16 |
\(\hbox {NO}_{3}^{-}\), mmol/L | 0.25 | \(<0.0016\) | 0.09 |
\(\hbox {SO}_{4}^{2-}\), mmol/L | 0.13 | 0.21 | 0.41 |
\(\hbox {HCO}_{3}^{-}\), mmol/L | 5.7 | 7.7 | 4.6 |
Mg/Ca | 0.72 | 0.88 | 0.39 |
p(\(\hbox {CO}_{2}\)), bar | 0.038 | 0.035 | 0.009 |
SI calcite | − 0.19 | − 0.19 | 0.16 |
SI aragonite | − 0.35 | − 0.33 | 0.02 |
SI vaterite | − 0.79 | − 0.76 | − 0.43 |