Development and Application of Almond Shell Activated Carbon (ASAC) for the Purification of Textile Wastewater.

ABSTRACT

The activated carbon prepared from almond shells, a cost-free environmental waste, was effectively used to eliminate dye from textile waste water. The following conclusions can be drawn from this study: • Increasing the activated carbon dosage, increases the dye removal efficiency since there is an increased number of vacant sites available for uptake of dye. Although a continuous 49 increase in the activated carbon dosage resulted in a decrease in the percentage removal of the dye. • An increase in contact time and agitation time favours the adsorption of dye onto the surface of activated carbon. A further increase in contact time led to a decrease in adsorption rate due to desorption. • Adsorption of dye from textile waste water peaks at equilibrium initial dye concentration and continues to steadily drop in diminutive amount past the equilibrium point.