REMOVAL OF THE BLUE METHYLENE DYE FROM AN AQUEOUS SOLUTION BY USING POWDERED CORN COB

This study deals with removal of dyes from industrial water by using the corn cob powder. The adsorption isotherm of the alkaline methylene blue was examined by using Langmuir and Freundlich isotherms. It also investigates the contact time and acidic effect on the adsorption surface and records the change that each effect caused when other factors were constant. Results revealed that the adsorption of methylene blue is gradually increased with an increase in adsorbent dosage when using concentrations ranging from 0.25-1.5 g, and then the adsorption becomes gradually constant at 1g. The nature of the adsorbate substance was also examined.