Application of fractional factorial and Doehlert designs for optimizing the preparation of activated carbons from Argan shells

Ennaciri, Karima; Baçaoui, Abdelaziz; Sergent, Michelle; Yaacoubi, Abdelrani

doi:10.1016/j.chemolab.2014.09.006

Cited by 45 publications

(26 citation statements)

References 38 publications

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“…us, the scientific community has become increasingly concerned with the waste treatment by developing innovative chemicals and materials. e utilization of the remaining residues has a positive impact on reducing solid wastes, on the production of low-cost materials with high added value, and on the protection of the environment [1]. Consequently, the organic solid wastes are valorized toward different value-added products: animal feeding [2,3], composting-fertilizer [4,5], energy [6,7], biofuels [8,9], activated carbon [10,11], etc.…”

Section: Introductionmentioning

confidence: 99%

Activated Carbon from Prickly Pear Seed Cake: Optimization of Preparation Conditions Using Experimental Design and Its Application in Dye Removal

maguana

Elhadiri

Bouchdoug

et al. 2019

International Journal of Chemical Engineering

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In the present study, the experimental design method was used to optimize the preparation conditions of an activated carbon from prickly pear seed cake by phosphoric acid activation. The parameters studied include impregnation ratio, carbonization temperature, and carbonization time. The optimal conditions for the preparation of the activated carbon with high adsorption capacity for methylene blue were identified to be an impregnation ratio of 2.9, carbonization temperature of 541°C, and carbonization time of 88 min. The obtained activated carbon was characterized by SEM/EDX, FTIR, pHpzc, and its capacity to adsorb methylene blue. FTIR analysis and pHPZC showed the acidic character of the activated carbon surface. The adsorption capacity of the optimal activated carbon was found to be 260 mg·g−1 for methylene blue. The adsorption equilibrium of methylene blue was well explained by the pseudo-second-order model and Freundlich isotherm. Furthermore, the performance of the produced activated carbon was examined by the methyl orange removal.

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Section: Introductionmentioning

confidence: 99%

Activated Carbon from Prickly Pear Seed Cake: Optimization of Preparation Conditions Using Experimental Design and Its Application in Dye Removal

maguana

Elhadiri

Bouchdoug

et al. 2019

International Journal of Chemical Engineering

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“…A two-level fractional factorial 2 5−1 design [33,34] was adopted to evaluate the effect of these factors on the extraction process and to estimate the interactions between them. Each factor was associated with a coded variable Xi (centered and normalized) defined as follows [34].…”

Section: Factors' Effects Measurementmentioning

confidence: 99%

Hierarchization of Physicochemical Factors during Simultaneous Removal of Lead and Copper from the Marrakech Municipal Discharge Soils

Aityoub

Abouelfida

Benyaich

et al. 2020

Journal of Chemistry

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Heavy metals became a great concern for scientists due to their harmful action on the environment and human life. EDTA and NTA chelation capacity were used to assess soil decontamination. The effect of pH, ligand, soil solution contact time with agitation, soil solution ratio, and particle size were investigated, in order to prioritize them, using the design of experiment methodology (Doe): pH was the most influential factor while the ratio mass of the soil by the volume of the solution and particle size were of equal importance. EDTA was more effective as a chelator than NTA in removing metals from the soil. The contact time was not a significant factor; a contact time of 10 minutes was sufficient to extract the two metals studied. An extraction efficiency of 45% was achieved for Pb and 85% for Cu without optimization process.

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“…For this reason, experimental design has been used to control the different factors that influence in the leaching process in order to optimize experimental conditions. e influential factors are optimized using response surface methodology and multicriteria optimization with a Doehlert design and desirability function [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Hydrochloric Acid Leaching Study of Rare Earth Elements from Moroccan Phosphate

Amine

Asafar

Bilali

et al. 2019

Journal of Chemistry

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As part of the valorization of the Moroccan phosphate rock by extraction of rare earths, different experiments on natural Moroccan phosphate from the Gantour Basin (basin of phosphate in the Youssoufia area) were done in the REMATOP laboratory. e response surface methodology was used to study the effects of the influence of different parameters (acid concentration, solid/ liquid ratio, duration of the reaction, stirring speed, and temperature) on the progress of the phosphate rock's dissolution process to determine the optimal parameters for the extraction of rare earths. e analyses were made at the same time on the mineral matrix and the solutions resulting from the attack of this matrix by different concentrations of hydrochloric acid. e rare earth analyses done by the ICP-MS technique have shown an overall amount of rare earths (ΣREs) of 228.408 ppm with the existence of yttrium as the major element.

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Application of fractional factorial and Doehlert designs for optimizing the preparation of activated carbons from Argan shells

Cited by 45 publications

References 38 publications

Activated Carbon from Prickly Pear Seed Cake: Optimization of Preparation Conditions Using Experimental Design and Its Application in Dye Removal

Activated Carbon from Prickly Pear Seed Cake: Optimization of Preparation Conditions Using Experimental Design and Its Application in Dye Removal

Hierarchization of Physicochemical Factors during Simultaneous Removal of Lead and Copper from the Marrakech Municipal Discharge Soils

Hydrochloric Acid Leaching Study of Rare Earth Elements from Moroccan Phosphate

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