Table 8 Pairwise sample test for the divalent metal adsorbed during filtration and batch experiment of CWFs
| Â | Paired differences | t | df | Sig. (2-tailed) | |||||
|---|---|---|---|---|---|---|---|---|---|
Mean | Std. deviation | Std. error mean | 95% confidence interval of the difference | ||||||
Lower | Upper | ||||||||
Pair 1 | Amount of copper ions adsorbed—Amount of manganese ions adsorbed | 24.267 | 28.189 | 5.528 | 12.881 | 35.652 | 4.390 | 25 | .000 |
Pair 2 | Amount of copper ions adsorbed—Amount of iron ions adsorbed | 24.265 | 28.187 | 5.528 | 12.879 | 35.65021 | 4.389 | 25 | .000 |