Valorization of Agroindustrial Wastes as Biosorbent for the Removal of Textile Dyes from Aqueous Solutions

Figure 3

Adsorption isotherms of dyes on Brewer’s spent grains. Experimental conditions: temperature: 25°C; pH (natural): 4.0 (BB41), 5.0 (RB5), 5.3 (AB1): particle size; 0.25–1.00 mm.