Table 3 Data required for the design of two BMEU and BROU processes.

Temperature

25 °C

Pump efficiency

0.72

Gas constant

8.316 kJ/kmol.K

Membrane active area-BROU

33.9 m²

Current utilization

72%

Membrane length

964 mm

Recirculation ratio

2.9

Feed spacer thickness

0.864 mm

Cell thickness-BMEU

1 mm

Recovery ratio

74.5%

Osmotic water flow-Standalone

0.0010 L/h

Dead volume

6.85 L

Osmotic water flow-Combined

0.0513 L/h

Area resistance- bipolar membrane

1600 Ω/mm²

Water transport-Standalone

3.89 L/h

Area resistance-exchange membranes

1000 Ω/mm²

Water transport-Combined

3.95 L/h