Numerical Modeling of Phenol Adsorption on Granular Activated Carbon Fixed Bed: Comparison of Two Numerical Methods to Solve the Advection-dispersion Equation
| Autor: | Michel Sardin, Safia Semra, Mohamed Bouhelassa, Fatiha Benmahdi, Mounira Kolli |
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| Přispěvatelé: | University of Constantine, Université Hadj Lakhdar Batna 1, Université Mentouri Constantine [Algérie] (UMC), Laboratoire Réactions et Génie des Procédés (LRGP), Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Granular activated carbon
Materials science Advection dispersion equation Fixed bed General Chemical Engineering Numerical analysis 0208 environmental biotechnology Phenol adsorption Numerical modeling 02 engineering and technology Mechanics [CHIM.MATE]Chemical Sciences/Material chemistry 020801 environmental engineering 020401 chemical engineering Modeling and Simulation 0204 chemical engineering |
| Zdroj: | Chemical Product and Process Modeling Chemical Product and Process Modeling, De Gruyter, 2021, 16 (1), ⟨10.1515/cppm-2019-0130⟩ |
| ISSN: | 1934-2659 |
| Popis: | This paper presents a comparison between some numerical methods and techniques for solving the nonlinear advection-dispersion equation, which may be used to describe the adsorption of phenol into a granular activated carbon fixed bed under local equilibrium conditions. The adsorption is described by the Langmuir isotherm, which makes the advection-dispersion equation nonlinear. This equation is solved successively by using the approximation and linearization techniques. For each technique, two types of numerical algorithms are used. Concerning the first one, the Implicit and the Runge Kutta schemes are used. As for the second one, the Modified Picard iteration and the Newton Raphson scheme are applied. Simulation results have been compared to each other and to the experimental data as well. Both of the Implicit and the Runge Kutta algorithms have led to superimposed simulated breakthrough curves. Both of the modified Picard and Newton Raphson schemes have given identical results too. However, comparing to the experimental data, the obtained solution, using the approximation technique, has underestimated the retardation of solute and failed in fitting the experimental breakthrough. The Obtained solution, using the linearization technique, has correctly fitted the experimental results under all the conditions of: feed flow rate, activated carbon bed height and the inlet phenol concentration. |
| Databáze: | OpenAIRE |
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