Abstract
The wastewater were passed through three columns containing 220-350 g granular activated carbons, and the adsorption of the compoments were investigated . Results obtained were as follows; 1) Granular activated carbons were not effective for adsorption of organic substances but effective for that of H2SO3 in wastewater from corn starch factory . 2) For the waste water from corn starch and bean-jam making factories, the removal of COD were 80.2% and 89.5%, respectively. Consequently, the average COD (mg) adsorbed by the activated carbons (g) were 70-80% and about 50% for that of adsorption isotherms in previous paper, respectively.