Table 4 Main cation concentrations in the supernatant after soaking red clay in pure water.
From: Experimental study on disintegration of unsaturated red clay in Ca2+ solution environment
Sample | Ca (ppb) | Na (ppb) | Mg (ppb) | Al (ppb) | K (ppb) | Fe (ppb) | Zn (ppb) |
|---|---|---|---|---|---|---|---|
Pure water | 62.33 | 18.22 | 6.3 | 7.83 | 0.75 | 1.62 | Untested |
The red clay + pure water | 817.21 | 471.43 | 92.88 | 559.84 | 525.63 | 422.24 | 5.29 |
