, Volume 38, Issue 3–4, pp 191–198 | Cite as

Chromatographic determination of the rate and extent of absorption of air pollutants by sea water

  • S. Nikolakaki
  • Ch. Vassilakos
  • N. A. Katsanos


A simple chromatographic method is developed to determine the rate constant for expulsion of an air pollutant from water or its diffusion parameter in the liquid, the rate constant for chemical reaction of the pollutant with water, its mass transfer coefficient in the liquid, and the partition coefficient between liquid water and air. From these physicochemical parameters, the absorption rate by sea water and, therefore, the depletion rate of a polluting substance from the air can be calculated, together with the equilibrium state of this absorption. The method has been applied to nitrogen dioxide being absorbed by triple-distilled water and by sea water, at various temperatures. From the temperature variation of the reaction rate constant and of the partition coefficient, the activation energy for the reaction and the differential heat of solution were determined.

Key Words

Gas chromatography Reversed-flow technique Absorption rate Air pollutants 


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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1994

Authors and Affiliations

  • S. Nikolakaki
    • 1
  • Ch. Vassilakos
    • 1
  • N. A. Katsanos
    • 1
  1. 1.Department of Chemistry, Physical Chemistry LaboratoryUniversity of PatrasPatrasGreece

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