Studies on the Treatment of Wastewater from Food Plants with Activated Carbons

Part I. Model experiments on adsorption of typical organic components

Abstract

The adsorption capacity of activated carbons was evaluated using several kinds of organic snbstances. Adsorption capacity and rate were represented by the FREUNDLICH adsorption isotherm.
1) For powdred activated-carbons (A, B, C and D) 1/n values were as follows: phenylalanine 0.2-0.3, soluble starch and methionine 0.4-0.6, glucose 0.5-0.6, lactic and glutamic acid 0.6-1.0, polypeptone 1.3-1.8. And for granular activated carbons (E, F) these values were: phenylalanine 0.3; lactic acid, methionine, glutamic acid and glucose 0.5-0.7, polypeptone 1.0-1.4, soluble starch 0.37 (E), 2.84 (F).
2) The amount of activated carbons required for removal of those solutes to 80% level in 100ml solution, showed the lowest value, 0.5-0.9g in case of phenylalanine with both powdered and glanular carbons, and the highest value, above 10g in case of soluble starch, with granular carbon F.