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Design and Energy Consumption Analysis of Small Reverse Osmosis Seawater Desalination Equipment

Author

Listed:
  • Zhuo Wang

    (College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China)

  • Yanjie Zhang

    (College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China)

  • Tao Wang

    (School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, China)

  • Bo Zhang

    (College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China)

  • Hongwen Ma

    (College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China)

Abstract

The reverse osmosis method has developed extremely rapidly in recent years and has become the most competitive seawater desalination technology in the world, and it has been widely used in all aspects. Large-scale reverse osmosis desalination plants cannot provide fresh water resources in areas with insufficient water resources and limited space. Therefore, this paper proposes a research plan for a small seawater desalination device based on reverse osmosis, which is mainly suitable for handling emergencies, disaster relief, desert areas and outdoor activities and other needs for timely freshwater resources. It mainly includes pretreatment modules, a reaction infiltration module, a post-processing module and an energy supply module. Detailed design calculations are carried out for the small-scale reverse osmosis membrane system, including the selection and quantity and arrangement of membranes. Subsequently, the one-stage two-stage small-scale reverse osmosis membrane system was modeled, and its energy consumption was analyzed theoretically from the perspectives of specific energy consumption and energy utilization efficiency; the main influencing factors were clarified, and the optimal recovery rate for system operation was determined to be 20%–30%. Finally, an experimental prototype was built to conduct relevant experiments to determine the influence trend of pressure, temperature, concentration, and flow rate on the operating performance of the reverse osmosis system.

Suggested Citation

  • Zhuo Wang & Yanjie Zhang & Tao Wang & Bo Zhang & Hongwen Ma, 2021. "Design and Energy Consumption Analysis of Small Reverse Osmosis Seawater Desalination Equipment," Energies, MDPI, vol. 14(8), pages 1-18, April.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:8:p:2275-:d:538558
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    References listed on IDEAS

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    1. Clément Lacroix & Maxime Perier-Muzet & Driss Stitou, 2019. "Dynamic Modeling and Preliminary Performance Analysis of a New Solar Thermal Reverse Osmosis Desalination Process," Energies, MDPI, vol. 12(20), pages 1-32, October.
    2. Jie Song & Tian Li & Lucía Wright-Contreras & Adrian Wing-Keung Law, 2017. "A review of the current status of small-scale seawater reverse osmosis desalination," Water International, Taylor & Francis Journals, vol. 42(5), pages 618-631, July.
    3. Liu, Lin & Cheng, Qing, 2020. "Mass transfer characteristic research on electrodialysis for desalination and regeneration of solution: A comprehensive review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 134(C).
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    Cited by:

    1. Foroogh Nazari Chamaki & Glenn P. Jenkins & Majid Hashemipour, 2023. "Financial, Economic, and Environmental Analyses of Upgrading Reverse Osmosis Plant Fed with Treated Wastewater," Energies, MDPI, vol. 16(7), pages 1-23, April.
    2. Qiaonan Yang & Can Hu & Jie Li & Xiaokang Yi & Yichuan He & Jie Zhang & Zhilin Sun, 2021. "A Separation and Desalination Process for Farmland Saline-Alkaline Water," Agriculture, MDPI, vol. 11(10), pages 1-16, October.

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