Kinetic, Thermodynamic and Isotherm Studies on the Removal of Rhodamine B dye using Activated Carbon

The research of the present work was to investigate the removal of Rhodamine B dyes from aqueous solution by using Activated Acacia Nilotica Shell Carbon (ANSC). Generally, dyes are organic compounds used as colouring products in chemical, textile, paper, printing, leather, plastics and various food industries. The need for the treatment of dye contaminated waste water passed out from the industry. In this study, Acacia Nilotica Shell was studied for its potential use as an adsorbent for removal of a cationic dye Rhodamine B (Rh-B).The various factors affecting adsorption, such as initial dye concentration, contact time, adsorbent dose and effect of temperature, were evaluated. The experimental data were fitted into the pseudo-second order kinetic model. The equilibrium of adsorption was modeled by using the Langmuir and Freundlich isotherm models. The objective of the present work suggests the ANSC may be utilized as a low cost adsorbent for Rhodamine B dye removal from aqueous solution.