Characteristics of dry sludge recovered from control (raw phosphate clay), CF (phosphate clay treated with chemical flocculant), and NFC (phosphate clay treated with natural flocculant-based cactus)
| Parameters . | Control . | CF . | NFC . |
|---|---|---|---|
| P2O5 wt% | 9.50 ± 0.56 | 10.93 ± 0.32 | 9.72 ± 0.12 |
| CaO wt% | 24.74 ± 0.62 | 24.53 ± 1.63 | 23.8 ± 0.50 |
| MgO wt% | 2.34 ± 0.08 | 1.94 ± 0.67 | 2.44 ± 0.17 |
| Organic C wt% | 1.89 ± 0.14 | 2.00 ± 0.20 | 3.21 ± 0.09 |
| SiO2 wt% | 30.14 ± 0.39 | 32.17 ± 1.22 | 24.33 ± 0.55 |
| Cd ppm | 85 ± 1.03 | 72 ± 1.6 | 56 ± 1.5 |
| Parameters . | Control . | CF . | NFC . |
|---|---|---|---|
| P2O5 wt% | 9.50 ± 0.56 | 10.93 ± 0.32 | 9.72 ± 0.12 |
| CaO wt% | 24.74 ± 0.62 | 24.53 ± 1.63 | 23.8 ± 0.50 |
| MgO wt% | 2.34 ± 0.08 | 1.94 ± 0.67 | 2.44 ± 0.17 |
| Organic C wt% | 1.89 ± 0.14 | 2.00 ± 0.20 | 3.21 ± 0.09 |
| SiO2 wt% | 30.14 ± 0.39 | 32.17 ± 1.22 | 24.33 ± 0.55 |
| Cd ppm | 85 ± 1.03 | 72 ± 1.6 | 56 ± 1.5 |
Values correspond to the mean of three measurements ± standard deviation.