Table 4.
Performance data of the DD Acid/Metal recovery by the single flat membrane plate-and-frame module using the prepared PAN/QPECH AEM.
| t (min) | ΔC (g/L) | Ud,r (L.m2/hr) | Ud,d (L.m2/hr) | Si | ηi (%) | VEF | |
|---|---|---|---|---|---|---|---|
| SS/A-011.05 M H2SO4(aq) | 10 | 66.130 | 58.35 | 8.34 | 14.29 | 8.16 | 1.61 |
| 20 | 35.799 | 48.76 | 59.00 | 121.00 | 69.14 | 0.54 | |
| 30 | 32.925 | 33.38 | 42.33 | 126.80 | 72.46 | 0.48 | |
| 40 | 33.043 | 23.11 | 28.71 | 124.21 | 70.98 | 0.51 | |
| SS/M-010.03 M FeSO4.7H2O/H2SO4 | 10 | 7.37 | 56.76 | 3.53 | 6.22 | 3.56 | 1.69 |
| 20 | 4.09 | 37.80 | 31.96 | 84.57 | 48.33 | 0.90 | |
| 30 | 8.49 | 18.58 | 4.32 | 23.27 | 13.30 | 1.52 | |
| 40 | 6.27 | 12.98 | 2.47 | 19.00 | 10.86 | 1.56 |
Note: SS/x-n, where “SS” is the simulated wastewater containing acid “A” or metal “M”. Whereas, “n” is the sample no. corresponding to different concentration. ‘ΔC’, ‘Ud,d’, ‘Ud,r’, ‘Si’ and ‘ηi’ are the log concentration difference, the diffusate and retentate dialytic coefficients, the separation factor, and the percent component recovery ratio, respectively, at operation times ‘t’.