Removal of Methylene Blue in Aqueous Solution by Using Bioadsorbent from Banana Pseudo Stem

Abstract

This study aimed to analyse the removal efficiency of methylene blue (MB) in aqueous solution using banana pseudo stem bioadsorbent. The adsorption parameters; solution pH, temperature and bioadsorbent dosage were investigated for the optimum conditions. Fresh chopped banana pseudo stem was oven dried at 105 °C for 24 hours. The percentage MB removal efficiency was calculated using the MB concentration measured with double beam UV-VIS Spectrophotometer. Adsorption experiments showed that the highest percentage MB removal efficiency was achieved at pH 6 (96.1%) and at optimized temperature of 40°C with 96.1% removal. The bioadsorbent removed 96.2% of methylene blue at optimum dosage of 0.2 g. The results indicated banana pseudo stem can be utilized as potential bioadsorbent in removing more than 96 % of methylene blue dye from aqueous solution at varied optimum adsorption parameters.