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Table 5 Main cations and anion of selected water samples during experiments C, D and E (mg/L)
From: Hydrogen sulfide removal from geothermal fluids by Fe(III)-based additives
Sample | Treatment | Na+ | K+ | Ca2+ | Mg2+ | HCO3− | Cl− | SO42− | Fe |
|---|---|---|---|---|---|---|---|---|---|
Water | Filtered | 520 | 23 | 430 | 130 | 172 | 860 | 1400 | < 0.02 |
Water | Unfiltered | 510 | 22 | 420 | 130 | 233 | 800 | 1300 | < 0.02 |
Exp. C | Before addition | 510 | 22 | 430 | 120 | nm | nm | 1500 | < 0.02 |
After GFH_1 | 510 | 22 | 430 | 120 | nm | nm | 1500 | 4.5 | |
After GFH_2 | 510 | 21 | 420 | 120 | nm | nm | 1500 | 10.5 | |
After GFH_2 | 510 | 22 | 430 | 120 | nm | nm | 1500 | < 0.02 | |
Exp. D | Before addition | 480 | 21 | 400 | 120 | nm | nm | 1500 | < 0.02 |
Before addition | 480 | 20 | 400 | 110 | nm | nm | 1400 | < 0.02 | |
After GFH | 480 | 20 | 400 | 110 | nm | nm | 1400 | < 0.02 | |
After GFH | 450 | 18 | 350 | 100 | nm | nm | 1200 | < 0.02 | |
After GFH | 460 | 19 | 370 | 110 | nm | nm | 1300 | < 0.02 | |
Before addition | 510 | 22 | 430 | 120 | nm | nm | 1500 | < 0.02 | |
Exp. E | After FeCl3 | 530 | 21 | 420 | 120 | nm | nm | 1400 | 6.7 |
After FeCl3 | 510 | 22 | 420 | 120 | nm | nm | 1500 | < 0.02 | |
After FeCl3 | 510 | 22 | 430 | 120 | nm | nm | 1400 | <0.02 | |
After FeCl3 | 510 | 21 | 420 | 120 | nm | nm | 1400 | 2.186 |