Книга: Prasenjit Mondal and Rohit Kumar Baranwal «Cadmium removal from water using agro based adsorbents»

Производитель: "LAP Lambert Academic Publishing"

The present work deals with the removal of cadmium from water using lemon peel and green coconut shell powder in batch reactor. Characterization of the biosorbents has been carried out through proximate and ultimate analysis, FTIR, SEM, EDAX etc. The influence of initial cadmium concentration, pH, adsorbent dose, time and temperature on the removal of cadmium has been investigated to find out the optimum process conditions. Analysis of kinetic data shows that the initial adsorption of cadmium is rapid for both the biosorbents, however, equilibrium agitation period is about 5 h for lemon peel and 3 h for green coconut shell powder. The adsorption process for both the biosorbents follows pseudo second order kinetic model. Langmuir isotherm model gives better prediction on adsorption equilibrium than Freundlich isotherm model. The Langmuir maximum adsorption capacity (qmax) for lemon peel and green coconut shell powder is found to be 11. 24 mg/g and 14. 49 mg/g respectively. The values of... ISBN:9783847317227

Издательство: "LAP Lambert Academic Publishing" (2012)

ISBN: 9783847317227