The comparison of charcoal activation processes to improve methylene blue adsorption for water treatment

Abstract

A series of charcoal activation processes was performed to absorb and remove methylene blue (MB) from synthetic solutions. The MB adsorption can also promote valuable measurements for charcoal activated processes evaluation. The higher activations efficiencies were obtained using potassium chloride, potassium carbonate and water stream. The activated charcoal removal percentages were 90, 88 and 79 % respectively, the surface coverage degree (Ɵ) 2.87, 5.72 and 6.04 % and surface area of 230.0, 145.0 and 121.9 (m2/mg).