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Biosorption of cadmium and lead from aqueous solution by fresh water alga Anabaena sphaerica biomass
Open accessAbstract
The present work represents the biosorption of Cd(II) and Pb(II) from aqueous solution onto the biomass of the blue green alga Anabaena sphaerica as a function of pH, biosorbent dosage, contact time, and initial metal ion concentrations. Freundlich, Langmuir, and Dubinin-Radushkevich (D-R) models were applied to describe the biosorption isotherm of both metals by A. sphaerica biomass. The biosorption isotherms studies indicated that the biosorption of Cd(II) and Pb(II) follows the Langmuir and Freundlish models. The maximum biosorption capacities (qmax ) were 111.1 and 121.95 mg/g, respectively, at the optimum conditions for each metal. From the D-R isotherm model, the mean free energy was calculated to be 11.7 and 14.3 kJ/mol indicating that the biosorption mechanism of Cd(II) and Pb(II) by A. sphaerica was chemisorption. The FTIR analysis for surface function group of algal biomass revealed the existence of amino, carboxyl, hydroxyl, and carbonyl groups, which are responsible for the biosorption of Cd(II) and Pb(II). The results suggested that the biomass of A. sphaerica is an extremely efficient biosorbent for the removal of Cd(II) and Pb(II) from aqueous solutions.
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Cites
The adsorption of gases on plane surfaces of glass, mica and platinum
Langmuir, I. (1918) · Journal of the American Chemical Society · doi:10.1021/ja02242a004 · Cited by 23,242
Gupta, V. K., & Rastogi, A. (2009) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2008.06.104 · Cited by 556
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Application of Biosorption for Removal of Heavy Metals from Wastewater
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Metadata
- Authors
- Abdel -Aty, A. M., Ammar, N. S., Abdel Ghafar, H. H., & Ali, R. K.
- Venue
- Journal of Advanced Research
- Publisher
- Elsevier BV
- Published
- 2013-07
- Volume
- 4
- Issue
- 4
- Pages
- 367-374
- ISSN
- 2090-1224 (ISSN-L)
- 2090-1232
- OpenAlex
- W2090642643
- Cited by
- 258
- References
- 2
- FWCI
- 11.92
- Type
- journal article
- Language
- en
- Open access
- gold
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- The paper
- Abdel -Aty, A. M., Ammar, N. S., Abdel Ghafar, H. H., & Ali, R. K. (2013). Biosorption of cadmium and lead from aqueous solution by fresh water alga Anabaena sphaerica biomass. Journal of Advanced Research. https://doi.org/10.1016/j.jare.2012.07.004
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