Figure 2

Batch FO set up, where 1—Magnetic stirring device, 2—Magnetic stirring rod, 3—Beaker, 4—Hydrogel covers the top side of the membrane, 5—FO cell, and 6—Holder.
Batch FO set up, where 1—Magnetic stirring device, 2—Magnetic stirring rod, 3—Beaker, 4—Hydrogel covers the top side of the membrane, 5—FO cell, and 6—Holder.