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Table 1

Modelling of the spiral wound RO of Al-Obaidi et al. (2017b) 

Model equationsSpecificationsEq. no.
 Feed flow rate at any point along the x-coordinate 
 Parameter in Equation (1) 
 Velocity at any point along the x-coordinate 
 Feed pressure at any point along the x-coordinate 
 Pressure difference between the feed and permeate channels at any point along the x-coordinate 
 Pressure difference between the feed and permeate channels at x = 0 
 Water flux at any point along the x-coordinate 
 Solute flux at any point along the x-coordinate 
 Wall solute concentration at any point along the x-coordinate 
 Mass transfer coefficient of solute at any point along the x-coordinate (Wankat 1990) 10 
 Diffusivity at any point along the x-coordinate (Koroneos et al. 2007) 11 
 Bulk solute concentration at any point along the x-coordinate (Lee et al. 2010) 12 
 Average permeate solute concentration 13 
and  Permeate solute concentrations at x = 0 and x = L (Al-Obaidi et al. 2017c) 14 15 
   
 Permeate flow rate at any point along the x-coordinate 16 
 Water recovery 17 
 Solute removal (Srinivasan et al. 2010) 18 
Model equationsSpecificationsEq. no.
 Feed flow rate at any point along the x-coordinate 
 Parameter in Equation (1) 
 Velocity at any point along the x-coordinate 
 Feed pressure at any point along the x-coordinate 
 Pressure difference between the feed and permeate channels at any point along the x-coordinate 
 Pressure difference between the feed and permeate channels at x = 0 
 Water flux at any point along the x-coordinate 
 Solute flux at any point along the x-coordinate 
 Wall solute concentration at any point along the x-coordinate 
 Mass transfer coefficient of solute at any point along the x-coordinate (Wankat 1990) 10 
 Diffusivity at any point along the x-coordinate (Koroneos et al. 2007) 11 
 Bulk solute concentration at any point along the x-coordinate (Lee et al. 2010) 12 
 Average permeate solute concentration 13 
and  Permeate solute concentrations at x = 0 and x = L (Al-Obaidi et al. 2017c) 14 15 
   
 Permeate flow rate at any point along the x-coordinate 16 
 Water recovery 17 
 Solute removal (Srinivasan et al. 2010) 18 
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