Removal of Congo Red Dye from Water Using Orange Peel as an Adsorbent

Abstract

The aim of this project work undertaken by me is to study the removal of Congo red dye from water using orange peel as an adsorbent. The need for using Cheap and eco-friendly adsorbent for removal of congo red dye from aqueous solution is of paramount importance. Batch operations were carried out in liquid phase to observe the effect of various experimental parameters such as pH, contact time, temperature, initial concentration of congo red, adsorbate dose and the optimum conditions for these parameters were evaluated. Various characteristics of the orange peel sample were also examined. Study of adsorption isotherms was carried out and best fitting models for isotherms were suggested. The Langmuir and Freundlich isotherms were used to fit the equilibrium data and the results showed that the Freundlich isotherm seemed to agree better than the Langmuir isotherm. The outcomes indicated that orange peel can be used as a good low cost alternative for treatment of effluents containing congo red in water.