Application of immobilized banana peels Musa paradisiaca L. into calcium alginate beads for removal of chromium VI from aqueous solution

The capacity of banana peels Musa paradisiaca L. immobilized into calcium alginate beads to remove chromium VI ions from aqueous solution was studied. Immobilization enhances sorption of chromium VI and repetitive use of sorbent could be achieved. The immobilized banana peels in to calcium alginate beads was characterized by FTIR, SEM and XRD. The influence of several operating experimental parameters such as solution pH, biosorbent dose concentration, initial chromium VI ions concentration, contact time, temperature and agitation rate determine the efficiency of metal uptake by biosorbent. Desorption efficiency of banana peels immobilized in to calcium alginate beads was highest for sulphuric acid followed by hydrochloric acid and nitric acid. The equilibrium isotherm data were comparing by using the Langmuir, Freundlich, DKR and Temkin adsorption isotherm models in which Langmuir isotherm was found to be fitted best. The Kinetics of sorption of chromium VI were described by a pseudo First order kinetic, pseudo second order kinetic, Elovich and Weber and Morris intra particle diffusion model in which pseudo second order model was found to be fitted best. Thermodynamic studies were also carried out. The results showed that immobilized banana peels Musa paradisiaca L. in to calcium alginate beads was a low cost promising sorbent for sequester of chromium VI from wastewater. Amit S. Sharma | Prof. Dr. Satish A. Bhalerao "Application of immobilized banana peels (Musa paradisiaca L.) into calcium alginate beads for removal of chromium (VI) from aqueous solution" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-2 , February 2018, URL: https://www.ijtsrd.com/papers/ijtsrd9665.pd