Sat, 16 Dec 2017

Adsorption of Aqueous Methyl Orange by Lebanese Eryngium Creticum

Ali Mroweh1,2, Akram Hijazi1*, Hassan Rammal1, Mohamad Alameh1,Joumana Toufaily2,3, Tayssir Hamieh2

1. Doctoral School of Science and Technology, Research Platform for Environmental Science (PRASE), Lebanese University, Lebanon.

2. Laboratory of Materials, Catalysis, Environment and Analytical Methods (MCEMA), Lebanese University, Lebanon.

3. School of Mechanical and Materials Engineering, Washington State University, Washington State, United State of America.


ABSTRACT

Using natural adsorbants for the removal of dyes from solutions may represent a new and effective method of dye control and treatment. In this study, the adsorption of methyl orange by Lebanese Eryngiumcreticum was evaluated. Removal rates of methyl orange were determined by UV-Vis spectrophotometry and the adsorption process was found to be affected by initial dye concentration, adsorbant concentration, and pH. Adsorption isotherms were also plotted and showed a type III isotherm at pH 2, and a type V isotherm at pH 10. The adsorption of Eryngiumcreticum was then compared to other synthetic adsorbants and was found to offer similar adsorption capacity to some.

Keywords: Methyl orange, Eryngiumcreticum, adsorption, isotherm.


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