Table 7.
Change in the concentrations of FS and DS (g/l) and flux (l/h/m2) of the pilot-scale investigation
| Description | DS concentration (g/l) | FS concentration (g/l) | Flux (l/h/m2) | Change in concentration | |||
|---|---|---|---|---|---|---|---|
| Initial | Final | Initial | Final | DS | FS | ||
| Industrial-grade (NH4)2 SO4 (740 g/l) as DS and industrial-grade NaCl (65 g/l) dissolved in DI as FS | 186.59 | 85.19 | 63.29 | 71.91 | 1.52 | − 54.3% | 13.6% |
| Industrial-grade (NH4)2 SO4 (740 g/l) as DS and industrial-grade NaCl (65 g/l) dissolved in tap water as FS | 187.48 | 89.48 | 65.72 | 73.41 | 1.32 | − 52.3% | 11.7% |
| Average | − 35.3% | 12.7% | |||||