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. 2021 Mar 25;28(29):39938–39951. doi: 10.1007/s11356-021-13311-z

Table 5.

Experiments of the bench-scale investigation

Experiment FS DS
Baseline experiment DI 58.44 g/l (1 mol) reagent-grade NaCl, 132.14 g/l (1 mol) reagent-grade (NH4)2 SO4, and 740 g/l industrial-grade (NH4)2 SO4
Experiment (I) Reagent-grade NaCl @ 5, 35 and 65 g/l (5,000, 35,000, and 65,000 ppm) 132.14 g/l (1 mol) and 396.42 g/l (3 mol) reagent-grade (NH4)2 SO4
Experiment (II) Reagent-grade NaCl @ 65 g/l (65,000 ppm) 740 g/l industrial-grade (NH4)2 SO4
Experiment (III) Industrial-grade NaCl @ 65 g/l (65,000 ppm) 740 g/l industrial-grade (NH4)2 SO4