Repository of Research and Investigative Information

Repository of Research and Investigative Information

Ilam University of Medical Sciences

Statistical modelling of endocrine disrupting compounds adsorption onto activated carbon prepared from wood using CCD-RSM and DE hybrid I updates evolutionary optimization framework: Comparison of linear vs non-linear isotherm and kinetic parameters

Thu Dec 8 14:07:47 2022

(2020) Statistical modelling of endocrine disrupting compounds adsorption onto activated carbon prepared from wood using CCD-RSM and DE hybrid I updates evolutionary optimization framework: Comparison of linear vs non-linear isotherm and kinetic parameters. Journal of Molecular Liquids. p. 17. ISSN 0167-7322

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Abstract

In this research, the efficiency of two adsorbents, including powdered and granular activated carbon (obtained from wood) was investigated on BPA removal in a batch-mode reactor. ANOVA analysis based on the central composite design-response surface methodology (CCD-RSM) showed a good fit between quadratic model predictions with experimental values, thus resulting in R-2 of 0.9992 and 0.9997 for PAC and GAC respectively. The proposed 3 layered backpropagation artificial neural network (ANN) model predictions results with R-2 = 0.9839 and 0.9992 for PAC and GAC respectively. The CCD-RSM optimised results indicated a maximum removal efficiency of 99 BPA in the case of the PAC under the optimal conditions, whereas, it is 89 for GAC. Genetic algorithm (GA) is also implemented to find the optimal values that can result high removal efficiency. The set (pH, contact time, adsorbent dosage and initial BPA concentration) of GA based optimised values for both PAC and GAC are 7.18, 90 min, 18 mg/L, 1.6 mg/L and 7.76, 90 min, 18 mg/L, 1.67 mg/L respectively which results in 99% and 89.95% removal efficiency. In this study, the Q(max) for powdered and granular activated carbon was found to be 93.89 and 74.62 mg/g, respectively. The adsorption process is following the Langmuir isotherm and Pseudo 2nd order kinetic models. The thermodynamic study also signifies a favourable and spontaneous removal process. Overall the results confirm that the low-cost powder activated carbon favours high removal efficiency of BPA from aqueous environment. (C) 2020 Elsevier B.V. All rights reserved.

Item Type: Article
Creators:
CreatorsEmail
Dehghani, M. H.UNSPECIFIED
Karri, R. R.UNSPECIFIED
Yeganeh, Z. T.UNSPECIFIED
Mahvi, A. H.UNSPECIFIED
Nourmoradi, H.UNSPECIFIED
Salari, M.UNSPECIFIED
Zarei, A.UNSPECIFIED
Sillanpaa, M.UNSPECIFIED
Keywords: Bisphenol A Adsorption Activated carbon Response surface methodology Artificial neural network Genetic algorithm bisphenol-a bpa aqueous-solution waste-water removal phenol equilibrium degradation nanotubes sorption biomass Chemistry Physics
Divisions:
Page Range: p. 17
Journal or Publication Title: Journal of Molecular Liquids
Journal Index: ISI
Volume: 302
Identification Number: https://doi.org/10.1016/j.molliq.2020.112526
ISSN: 0167-7322
Depositing User: مهندس مهدی شریفی
URI: http://eprints.medilam.ac.ir/id/eprint/2606

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