Biosorption of Hexavalent Chromium from Aqueous Medium with Opuntia Biomass
Joint Authors
Fernández-López, José A.
Angosto, José M.
Avilés, María D.
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-03
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
The biosorption of hexavalent chromium from aqueous solutions by Opuntia cladodes and ectodermis from cactus fruits was investigated.
Both types of biomass are considered low-cost, natural, and ecofriendly biosorbents.
Batch experiments were carried out to determine Cr(VI) biosorption capacity and the efficiency of the biosorption process under different pH, initial Cr(VI) concentration, and sorbent dosage.
The biosorption of Cr(VI) by Opuntia biomass was highly pH dependent, favoring higher metal uptake at low pH.
The higher biosorption capacity was exhibited at pH 2.
The optimal conditions were obtained at a sorbent dosage of 1 g L−1 and initial metal concentration of 10 mg L−1.
Biosorption kinetic data were properly fitted with the pseudo-second-order kinetic model.
The rate constant, the initial biosorption rate, and the equilibrium biosorption capacity were determined.
The experimental equilibrium data obtained were analyzed using two-parameter isotherm models (Langmuir, Freundlich, and Temkin).
The Langmuir maximum monolayer biosorption capacity (qmax) was 18.5 mg g−1 for cladodes and 16.4 mg g−1 for ectodermis.
The results suggest that Opuntia biomass could be considered a promising low-cost biosorbent for the ecofriendly removal of Cr(VI) from aqueous systems.
American Psychological Association (APA)
Fernández-López, José A.& Angosto, José M.& Avilés, María D.. 2014. Biosorption of Hexavalent Chromium from Aqueous Medium with Opuntia Biomass. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1050542
Modern Language Association (MLA)
Fernández-López, José A.…[et al.]. Biosorption of Hexavalent Chromium from Aqueous Medium with Opuntia Biomass. The Scientific World Journal No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1050542
American Medical Association (AMA)
Fernández-López, José A.& Angosto, José M.& Avilés, María D.. Biosorption of Hexavalent Chromium from Aqueous Medium with Opuntia Biomass. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1050542
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1050542