Table 1
Modelling parameter and the operating conditions
| Parameter | Value |
|---|---|
| Feed condition | |
Feed temperature,  (°C) | 26 |
Feed pressure,  (bar) | 1, 2, 3 & 4 |
Feed flowrate,  (m3/h) | 0.04 |
Feed concentration,  (ppm) | 500, 1,000, 1,500 and 2,000 |
| Feed pH | 6 |
Solvent velocity,  (m/s) | 0.5 |
| Water properties | |
Density of water,  (kg/m3) | 998 |
Dynamic viscosity of water,  (N.s/m2) | 0.89 103 |
Kinematic viscosity of water,  (m2/s) | 0.91 103 |
Diffusivity of water,  (m2/s) | 1.2 10−9 |
| Sodium Chloride (NaCl) properties | |
| Osmotic coefficient of NaCl | 0.93 |
| Molecular weight of NaCl, MW (g/mol) | 58.4 |
| Diffusivity of NaCl, D (m2/s) | 1.34 10−9 |
Average density of NaCl,  (kg/m3) | 1,010 at 26 °C |
Dynamic viscosity of NaCl,  (N.s/m2) | 0.0007 |
Kinematic viscosity of NaCl,  (m2/s) | 9.2 10−7 |
| Membrane characteristics | |
| Membrane type | ULP32-8040 |
| Length, L (m) | 1a |
| Active membrane area, A (m2) | 37a |
Diameter of element, (m) | 0.2a |
Length along the feed channel in the feed flow direction,  (m) | 1.016 |
Hydraulic diameter of the feed channel,  (m) | 0.2019 |
Feed channel height,  (m) | 0.5 |
Mixing length of the spacer,  (m) | 1 |
| Parameter | Value |
|---|---|
| Feed condition | |
| Feed temperature, (°C) | 26 |
| Feed pressure, (bar) | 1, 2, 3 & 4 |
| Feed flowrate, (m3/h) | 0.04 |
| Feed concentration, (ppm) | 500, 1,000, 1,500 and 2,000 |
| Feed pH | 6 |
| Solvent velocity, (m/s) | 0.5 |
| Water properties | |
| Density of water, (kg/m3) | 998 |
| Dynamic viscosity of water, (N.s/m2) | 0.89103 |
| Kinematic viscosity of water, (m2/s) | 0.91103 |
| Diffusivity of water, (m2/s) | 1.210−9 |
| Sodium Chloride (NaCl) properties | |
| Osmotic coefficient of NaCl | 0.93 |
| Molecular weight of NaCl, MW (g/mol) | 58.4 |
| Diffusivity of NaCl, D (m2/s) | 1.3410−9 |
| Average density of NaCl, (kg/m3) | 1,010 at 26 °C |
| Dynamic viscosity of NaCl, (N.s/m2) | 0.0007 |
| Kinematic viscosity of NaCl, (m2/s) | 9.210−7 |
| Membrane characteristics | |
| Membrane type | ULP32-8040 |
| Length, L (m) | 1a |
| Active membrane area, A (m2) | 37a |
| Diameter of element,(m) | 0.2a |
| Length along the feed channel in the feed flow direction, (m) | 1.016 |
| Hydraulic diameter of the feed channel, (m) | 0.2019 |
| Feed channel height, (m) | 0.5 |
| Mixing length of the spacer, (m) | 1 |
aReference: Vontron (2016).