Biosorption of strontium by Padina sp. algae biomass: process optimisation and equilibrium study Online publication date: Wed, 17-Sep-2014
by M.H. Khani
International Journal of Environmental Technology and Management (IJETM), Vol. 16, No. 4, 2013
Abstract: Biosorption of strontium by Padina sp. algae from aqueous solutions was studied. A response surface methodology (RSM) was employed to optimise the biosorption parameters. The effects of pH, initial metal concentration in solution, biomass dosage and temperature on the strontium uptake by the algae were investigated. RSM analysis showed that the experimental data were adequately fitted to second-order polynomial model. The parameters with significant effect on the removal of strontium using the algae were determined. The optimum parameters within the experimental range of the variables were 9.50, 4.00 mmol/l, 1.11g/l and 30°C for pH, initial metal concentration, biomass dosage and temperature, respectively. Under such condition, the strontium uptake was predicted to be 248.10 mg/g. The equilibrium data were analysed in terms of Langmuir, Freundlich and Sips isotherms. The data fitted well to the Sips model. The maximum uptake estimated by the Sips model was 269.92 mg/g.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Environmental Technology and Management (IJETM):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook