Open AccessElimination of Methylene Blue by low-cost Biomaterial prepared from Local Natural Residue
Author(s) -
Fatma Lansari,
Meryem Edjekouane,
Omar Khelifi,
Ishak Boukheteche,
Ishak Laksaci
Publication year - 2020
Publication title -
algerian journal of renewable energy and sustainable development
Language(s) - English
Resource type - Journals
ISSN - 2710-849X
DOI - 10.46657/ajresd.2020.2.1.9
Subject(s) - methylene blue , freundlich equation , adsorption , biomaterial , aqueous solution , langmuir , chemistry , nuclear chemistry , chemical engineering , chromatography , organic chemistry , catalysis , photocatalysis , engineering
This study aims to assess the use of natural waste (fruit kernels) for the preparation of a bimaterial in order to use it as a natural support for the elimination of a dye (methylene blue) from aqueous solutions for environmental protection. The biomaterial was characterized physicochemically and the determination of methylene blue concentration was carried out by a UV-Visible spectrophotometer. In order to clarify the adsorption process, experiments in a batch system were carried out to study the effect of operating parameters such as the initial concentration of methylene blue (2-10 mg·L-1), biomaterial (0.1-1 g) and the contact time (10-120 min). To describe the adsorption equilibrium, the experimental data were analyzed by the Langmuir isotherm and the Freundlich isotherm. The equilibrium is perfectly described by the Freundlich model (R2>0.99) and the adsorption process is multilayer. The results of the present study suggest that washingtonia seed (WS) can be advantageously used as a low-cost biosorbent for water discoloration