Investigation of the efficiency of banana peels as an adsorbent on the removal of chomuim ion from industrial waste water :

Abstract

In this study, chromium was collected from Jumbo tannery industry and Banana peels from Busia market. The initial concentration of Chromium. was then determined as using Atomic Adsorption Spectrophotometer. Batch experiments were carried out under optimized conditions to evaluate the adsorption capacity of the banana peel in the removal of Chromium from aqueous solutions by adsorbent doses, and pH and contact times. The residual Chromium concentrations after bio sorption were analysed by Atomic Adsorption Spectrophotometer.The- characterization of the banana peel suggested the possible contribution. of carboxyl and hydroxyl groups in Chromium. Bio-sorption The bio sorption efficiency of the banana peel was dependent 'oil the pH of the Chromium solution, with pH 35 being optimal. The removal rate of Chromium ions in Chromium eased within contact time 'and remained constant after an equilibrium time ‘Of 6 hours. The. removal of Chromium ions in Chromium increased Within Chromium increase in bio sorbent concentration with the optimal adsorbent dosage. at 3g with 89.3% efficiency. From the covariance test, the banana peelings are very significant and reliable adsorbent that can be used in removal of heavy metal. The present study revealed that banana peel which is a low cost agricultural material. could be used as an efficient sorbent for the Removal of Chromium from aqueous solutions.