Abstract
We have quantitatively assessed the impact of surface chemistry and the structure of activated carbon on adsorbability of fulvic acids from aqueous solutions. For assessing adsorption energy of different fractions of fulvic acids the method of “conditional component” was used. It has been shown that in the first approximation in the solution of fulvic acids one can separate weakly- and strongly adsorbing fractions. It has been found that the change of energy heterogeneity of the surface of activated carbon as a result of oxidation leads to the reduction of adsorption energy of fulvic acids and an increase of the concentration range of the conditional share of the weakly adsorbing fraction.
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