Özet:

The use of peanut and pistachio shells as an adsorbent for the removal of Brillant Blue and K-RED 198, Methylene Orange, and Methylene Blue was investigated. The commonly used isotherm models were applied for data obtained from further batch studies. Dye removal capacity is as follows 65% for Brillant Blue, 73 % for KRED 198. Methylene Orange and Methylene Blue were removed poorly for peanut and pistachio shell. Freundlich isotherm model were found to be the best fitted one and based on Freundlich isotherm model adsorption capacities were 4.58 mg/g for Brillant Blue and 4.33 mg/g for K-RED 198 at peanut shells and 4.04 mg/g for Brillant Blue and 4.64 mg/g for K-RED 198 at pistachio shells. Kinetic examinations were also carried out for two dyes tested and it was found that adsorption kinetic was best described by pseudo first-order kinetic model.

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