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Table 1

Modelling parameter and the operating conditions

ParameterValue
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 
Solvent velocity, (m/s) 0.5 
Water properties 
Density of water, (kg/m3998 
Dynamic viscosity of water, (N.s/m20.89103 
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/m31,010 at 26 °C 
Dynamic viscosity of NaCl, (N.s/m20.0007 
Kinematic viscosity of NaCl, (m2/s) 9.210−7 
Membrane characteristics 
Membrane type ULP32-8040 
Length, L (m) 1a 
Active membrane area, A (m237a 
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) 
ParameterValue
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 
Solvent velocity, (m/s) 0.5 
Water properties 
Density of water, (kg/m3998 
Dynamic viscosity of water, (N.s/m20.89103 
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/m31,010 at 26 °C 
Dynamic viscosity of NaCl, (N.s/m20.0007 
Kinematic viscosity of NaCl, (m2/s) 9.210−7 
Membrane characteristics 
Membrane type ULP32-8040 
Length, L (m) 1a 
Active membrane area, A (m237a 
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) 

aReference: Vontron (2016).

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