alexa Batch adsorption of methylene blue from aqueous solution by garlic peel, an agricultural waste biomass.
Environmental Sciences

Environmental Sciences

Journal of Pollution Effects & Control

Author(s): Hameed BH, Ahmad AA

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Abstract The potential of garlic peel (GP), agricultural waste, to remove methylene blue (MB) from aqueous solution was evaluated in a batch process. Experiments were carried out as function of contact time, initial concentration (25-200mg/L), pH (4-12) and temperature (303, 313 and 323 K). Adsorption isotherms were modeled with the Langmuir, Freundlich, and Temkin isotherms. The data fitted well with the Freundlich isotherm. The maximum monolayer adsorption capacities were found to be 82.64, 123.45, and 142.86 mg/g at 303, 313, and 323 K, respectively. The kinetic data were analyzed using pseudo-first-order and pseudo-second-order models. The results indicated that the garlic peel could be an alternative for more costly adsorbents used for dye removal. This article was published in J Hazard Mater and referenced in Journal of Pollution Effects & Control

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