| Elements | Control | SJ treated (1:0) | ||
| Weight (%) | Atomic (%) | Weight (%) | Atomic (%) | |
| C | 46.1 | 53.2 | 33.54 | 41.59 |
| O | 53.9 | 46.8 | 57.28 | 52.86 |
| Na | 0 | 0 | 7.78 | 5.00 |
| Mg | 0 | 0 | 0.46 | 0.28 |
| Si | 0 | 0 | 0.21 | 0.11 |
| Cl | 0 | 0 | 0.14 | 0.06 |
| K | 0 | 0 | 0.13 | 0.05 |
| Ca | 0 | 0 | 0.16 | 0.06 |