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Table 4 Pre-experiment III: mixing a 40% FeCl3 solution with thermal water in different ratios
From: Hydrogen sulfide removal from geothermal fluids by Fe(III)-based additives
Mixing ratio | FeCl3 added (mg/L) | pH | Suspension color | Hydrogen sulfide (mg/L) |
|---|---|---|---|---|
1: 100 | 2000 | 1.3 | Red | nm |
1: 1000 | 200 | 2.8 | nm | |
1:10,000 | 20 (0.4 mM) | 6.9 | Black | nm |
1:4000 | 50 | 6.1 | 2.2 | |
1:8000 | 25 | 6.17 | 5 |