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Environ Sci Pollut Res Int. 2016 Aug;23(16):15832-40. doi: 10.1007/s11356-015-5262-4. Epub 2015 Oct 7.

Biosorption of alpacide blue from aqueous solution by lignocellulosic biomass: Luffa cylindrica fibers.

Author information

1
Laboratory of Energy and Materials (LABEM), High School of Sciences and Technology of Hammam Sousse, FP4BATIW Project, Sousse University-Tunisia, BP 4011, Hammam, Sousse, Tunisia. aida.kesraoui@gmail.com.
2
Laboratory of Energy and Materials (LABEM), High School of Sciences and Technology of Hammam Sousse, FP4BATIW Project, Sousse University-Tunisia, BP 4011, Hammam, Sousse, Tunisia.

Abstract

The aim of the present work is to develop an effective and inexpensive pollutant-removal technology using lignocellulosic fibers: Luffa cylindrica, for the biosorption of an anionic dye: alpacide blue. The influence of some experimental parameters such as pH, temperature, initial concentration of the polluted solution, and mass of the sorbent L. cylindrica on the biosorption of alpacide blue by L. cylindrica fibers has been investigated. Optimal parameters for maximum quantity of biosorption dye were achieved after 2 h of treatment in a batch system using an initial dye concentration of 20 mg/L, a mass of 1 g of L. cylindrica fibers, and pH 2. In these conditions, the quantity of dye retained is 2 mg/g and the retention rate is 78 %. Finally, a mathematical modeling of kinetics and isotherms has been used for mathematical modeling; the model of pseudo-second order is more appropriate to describe this phenomenon of biosorption. Concerning biosorption isotherms, the Freundlich model is the most appropriate for a biosorption of alpacide blue dye by L. cylindrica fibers.

KEYWORDS:

Alpacide blue; Biosorption; Isotherms; Kinetics; Lignocellulosic materials; Luffa cylindrica; Modeling

PMID:
26443307
DOI:
10.1007/s11356-015-5262-4
[Indexed for MEDLINE]

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