Fig. 12From: Adsorptive removal of malachite green dye from aqueous solution onto activated carbon of Catha edulis stem as a low cost bio-adsorbentFreundlich isotherm model at different concentration (10–50 mg/L) at constant dosage 0.5 g, pH optimum = 10 contact time 60 min., shaker speed 400 rpm and room temperatureBack to article page