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This paper discusses the relationship between the electron density for various groups of phenolic compounds and their adsorption capacity on activated carbon. Chloro- and nitrophenols were used as test adsorbates, and as-received or HNO 3 -modified granular activated carbon (GAC) samples were used as adsorbents. The isotherms for these systems were determined by the batch bottle technique...
The Freundlich isotherm has been widely used in the design of activated-carbon adsorption processes. The isotherm is easy to use and is applicable to a wide spectrum of organic compounds and adsorbents. The main drawback for the isotherm is that it is an empirical formula requiring experiments to determine its coefficients. To alleviate this drawback, a procedure is developed in this study to correlate...
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