Abstract

A novel equation for describing Langmuir-type adsorption isotherms was suggested. This equation satisfies the asymptotic limit, being converted into the Freundlich or Langmuir equations in the extreme cases. The equation also provides a description of the intermediate concentration range. Application of the suggested equation was demonstrated by calculation of the adsorption isotherms of aniline, benzoic acid, o-cresol, phenol, p-chlorophenol, 3,4-dichlorophenol and 2,4,6-trichlorophenol on various types of active carbon.

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