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One-Dimensional Analytical Modeling of Pressure- Retarded Osmosis in a Parallel Flow Configuration for the Desalination Industry in the State of Kuwait

Author

Listed:
  • Bader S. Al-Anzi

    (Department of Environmental Technology Management, College of Life Sciences, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait)

  • Ashly Thomas

    (Department of Environmental Technology Management, College of Life Sciences, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait)

Abstract

The present study deals with the application of one-dimensional (1D) analytical expressions for a parallel flow configuration in pressure-retarded osmosis (PRO) exchangers by using actual brine and feed salinity values from the Kuwait desalination industry. The 1D expressions are inspired by the effectiveness-number of transfer unit (ε-NTU) method used in heat exchanger analysis and has been developed to “size” an osmotically-driven membrane process (ODMP) mass exchanger given the operating conditions and desired performance. The driving potentials in these mass exchangers are the salinity differences between feed and draw solution. These 1D model equations are employed to determine mass transfer units (MTU) as a function of different dimensionless groups such as mass flowrate ratio (MR), recovery ratio (RR), concentration factors (CF) and effectiveness (ε). The introduction of new dimensionless groups such as the dilution rate ratio (DRR) and dilution rate (DR) would be used to relate the actual water permeation to the brine draw stream. The results show that a maximum power of 0.28 and 2.6 kJ can be produced by the PRO system using seawater or treated wastewater effluent (TWE) as the feed solution, respectively, which might be able to reduce the power consumption of the desalination industry in Kuwait.

Suggested Citation

  • Bader S. Al-Anzi & Ashly Thomas, 2018. "One-Dimensional Analytical Modeling of Pressure- Retarded Osmosis in a Parallel Flow Configuration for the Desalination Industry in the State of Kuwait," Sustainability, MDPI, vol. 10(4), pages 1-14, April.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:4:p:1288-:d:142520
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    References listed on IDEAS

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    1. Naguib, Maged Fouad & Maisonneuve, Jonathan & Laflamme, Claude B. & Pillay, Pragasen, 2015. "Modeling pressure-retarded osmotic power in commercial length membranes," Renewable Energy, Elsevier, vol. 76(C), pages 619-627.
    2. Wan, Chun Feng & Chung, Tai-Shung, 2016. "Maximize the operating profit of a SWRO-PRO integrated process for optimal water production and energy recovery," Renewable Energy, Elsevier, vol. 94(C), pages 304-313.
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    Cited by:

    1. Tawalbeh, Muhammad & Al-Othman, Amani & Abdelwahab, Noun & Alami, Abdul Hai & Olabi, Abdul Ghani, 2021. "Recent developments in pressure retarded osmosis for desalination and power generation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 138(C).

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