Membrane and Desalination Technologies

Volume 13 of the series Handbook of Environmental Engineering pp 391-431


Adsorption Desalination: A Novel Method

  • Kim Choon NgAffiliated withDepartment of Mechanical Engineering, National University of Singapore
  • , Ibrahim I. El-SharkawyAffiliated withMechanical Power Engineering Department, Mansoura University
  • , Bidyut Baran SahaAffiliated withMechanical Engineering Department, Kyushu University
  • , Anutosh ChakrabortyAffiliated withSchool of Mechanical and Aerospace Engineering, Nanyang Technological University

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The search for potable water for quenching global thirst remains a pressing concern throughout many regions of the world. The demand for new and sustainable sources and the associated technologies for producing fresh water are intrinsically linked to the solving of potable water availability and hitherto, innovative and energy efficient desalination methods seems to be the practical solutions. Quenching global thirst by adsorption desalination is a practical and inexpensive method of desalinating the saline and brackish water to produce fresh water for agriculture irrigation, industrial, and building applications. This chapter provides a general overview of the adsorption fundamentals in terms of adsorption isotherms, kinetics, and heat of adsorption. It is then being more focused on the principles of thermally driven adsorption desalination methods. The recent developments of adsorption desalination plants and the effect of operating conditions on the system performance in terms of specific daily water production and performance ratio are presented. Design of a large commercial adsorption desalination plant is also discussed herein.

Key Words

Adsorption desalination adsorption kinetics adsorption isotherms heat of adsorption heat recovery mass recovery performance ratio specific daily water production