Jute stick powder as a potential low-cost adsorbent to uptake methylene blue from dye enriched wastewater.

In this study, jute stick powder (JSP) was used as a potential low-cost adsorbent for the removal of organic dye, methylene blue (MB), from aqueous solution by batch adsorption technique. The adsorbent was characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The batch adsorption experiments were carried out at room temperature and atmospheric pressure. Various operational parameters such as solution pH, initial dye concentration, adsorbent dosages and contact time were optimized. The kinetics data were analyzed using pseudo- first order and pseudo-second order models and the second order model fits the kinetic data quite better. The adsorption equilibrium was studied using the Langmuir, Freundlich and Sips isotherm models. The coefficient of correlation indicating the well acceptance of Langmuir model to predict the adsorption equilibrium and the maximum adsorption capacity was obtained as 37.89 mg/g. This result indicates that the natural material, JSP can be employed as a low-cost and efficient adsorbent for the removal of methylene blue from colored wastewater. [ABSTRACT FROM AUTHOR]