• Corpus ID: 14444140

Application of Response Surface methodology (RSM) for the Removal of Nickel Using Rice Husk ASH as Biosorbent

@inproceedings{Danda2014ApplicationOR,
  title={Application of Response Surface methodology (RSM) for the Removal of Nickel Using Rice Husk ASH as Biosorbent},
  author={Sravan Danda and V. Ramachandramurthy},
  year={2014}
}

• Sravan Danda, V. Ramachandramurthy
• Published 2014
• Materials Science

The Rice Husk Ash is a cheap and readily available biosorbent for the removal of nickel ions from aqueous solutions. This investigation comprises of the equilibrium and kinetics study for biosorption of nickel ions from aqueous solutions using Rice Husk Ash powder as a biosorbent in a batch process. The Rice Husk Ash is obtained from a hotel near Andhra University campus, is dried in sunlight for 15 days. The biosorption process is carried out in batch process by varying four parameters: pH, Dosage, Concentration and Temperature of the solution of the process. The results indicate that biosorption of nickel is increased with an increase in biosorbent dosage. A significant increase in percentage biosorption of nickel is observed as pH is increased from 2 to 5 and the percentage biosorption decreased beyond pH 5. Increased initial concentration of nickel in the aqueous solution resulted in lower percentage of biosorption. Langmuir, Freundlich and Temkin isotherm models describe the present data very well indicating favorable biosorption. The biosorption followed pseudo-second-order kinetics. The present study involves the use of statistical design to optimize process conditions for maximal biosorption of nickel from aqueous solution using BBD involving RSM Hence the Rice Husk Ash is highly effective as biosorbent for biosorption of nickel ions from aqueous solutions and can be appreciably considered as most versatile, economical, feasible and efficient biosorbent for biosorption of nickel ions from aqueous solutions.