Removal of Mn(II) from ground water by solid wastes of sugar industry

Abstract

The potential to remove or reduce the risk of Mn(II) from ground water through adsorption using Sugar Cane Bagasse (SCB) and Beet Pulp (BP) as a low cost natural wastes was investigated. The SCB and BP were characterized using Fourier transform infrared spectra (FT-IR) and Scanning Electron Microscope (SEM). The adsorption was taken in batch experiments under different parameters such as pH (2.0-10.0), weight of phase (0.25-2.5 g), contact times (10-180 min), initial concentration (2.0-10.0 ppm). Under the optimum conditions, the percentage removals of Mn(II) using SCB and BP were 62.5 and 86.36%, respectively. The rate limiting step of the adsorption was studied using different kinetic models such as pseudo-first-order, pseudo-secondorder adsorption equation, elovich equation and the intraparticle diffusion model. Kinetics data was best fitted with the pseudo-second-order type. This method has been successfully applied for reduce the risk of Mn(II) from ground water samples.