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Dias CS, Franco MAE, Rodrigues EC, Ferreira JL, Viegas BM, Féris LA, Estumano DC, Macêdo EN. Diclofenac sodium adsorption on activated carbon: experimental, modeling and bayesian statistics. AN ACAD BRAS CIENC 2024; 96:e20231110. [PMID: 39046057 DOI: 10.1590/0001-3765202420231110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 03/04/2024] [Indexed: 07/25/2024] Open
Abstract
The present study modeled the adsorption process of the drug diclofenac sodium on activated charcoal. For this purpose, a mass balance-based model was used considering a fixed bed column. The mass transfer rate in the solid phase was represented by a driving force model proposed in this study, and a gamma exponent with a range of 0 > γ ≤ 2 was assigned to the model. Different isotherms were adopted to represent the equilibrium at the solid/liquid interface: the Langmuir, Freundlich, Sips and Redlich-Peterson isotherms. The modeling was approached from the perspective of Bayesian statistics, and the Markov chain Monte Carlo method was used for parameter estimation. Model validation was performed with experimental data obtained under different operating conditions of initial concentration ($C_{0.
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Affiliation(s)
- Camila S Dias
- Universidade Federal do Pará, Rua Augusto Corrêa, 01, 66075-970 Belém, PA, Brazil
| | - Marcela Andrea E Franco
- Universidade Federal do Rio Grande do Sul, Programa de Pós-Graduação em Engenharia Química, Rua Ramiro Barcelos, 2777, 90040-040 Porto Alegre, RS, Brazil
| | - Emerson C Rodrigues
- Universidade Federal do Pará, Faculdade de Engenharia Química, Rua Augusto Corrêa, 01, 66075-970 Belém, PA, Brazil
| | - Josiel L Ferreira
- Universidade Federal do Pará, Faculdade de Engenharia Química, Rua Augusto Corrêa, 01, 66075-970 Belém, PA, Brazil
| | - Bruno M Viegas
- Universidade Federal do Pará, Faculdade de Biotecnologia, Rua Augusto Corrêa, 01, 66075-970 Belém, PA, Brazil
| | - Liliana A Féris
- Universidade Federal do Rio Grande do Sul, Departamento de Engenharia Química, Rua Ramiro Barcelos, 2777, 90040-040 Porto Alegre, RS, Brazil
| | - Diego C Estumano
- Universidade Federal do Pará, Faculdade de Biotecnologia, Rua Augusto Corrêa, 01, 66075-970 Belém, PA, Brazil
| | - Emanuel N Macêdo
- Universidade Federal do Pará, Rua Augusto Corrêa, 01, 66075-970 Belém, PA, Brazil
- Universidade Federal do Pará, Faculdade de Engenharia Química, Rua Augusto Corrêa, 01, 66075-970 Belém, PA, Brazil
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Kumar A, Patra C, Rajendran HK, Narayanasamy S. Activated carbon-chitosan based adsorbent for the efficient removal of the emerging contaminant diclofenac: Synthesis, characterization and phytotoxicity studies. CHEMOSPHERE 2022; 307:135806. [PMID: 35940416 DOI: 10.1016/j.chemosphere.2022.135806] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 06/16/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
The rise in pharmaceutical pollutants due to their unregulated discharge in pharmaceutical wastewater has landed them as emerging contaminants that would gradually affect the aquatic ecosystem and human life. The current study emphasizes the adsorptive elimination of one such emerging pharmaceutical pollutant, i.e., Diclofenac (DIF), using a synthesized adsorbent vis. Activated carbon-chitosan beads (ACCB). The morphological and physicochemical properties of the prepared adsorbent, ACCB and its interaction with the DIF species were investigated. Process parameters influencing the adsorptive interactions between ACCB and DIF were optimised. DIF was efficiently adsorbed at optimised initial DIF pH of 6.0 and ACCB dosage of 1.5 mg/mL at an incubation temperature of 40 °C. Freundlich isotherm model showed the best fit (R2 = 0.98) with the experimental data to conclude that the adsorbent surface is heterogenous, promoting multilayer adsorption. As depicted from the Langmuir isotherm model, the maximum theoretical adsorption capacity was 99.29 mg/g. The seed toxicity assay confirmed the efficacy of ACCB in the adsorptive removal of DIF species from aqueous setups, making the post-treated solution fit enough for seed germination.
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Affiliation(s)
- Ajit Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Chandi Patra
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Harish Kumar Rajendran
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Selvaraju Narayanasamy
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
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Ferrah N, Merghache D, Meftah S, Benbellil S. A new alternative of a green polymeric matrix chitosan/alginate-polyethyleniminemethylene phosphonic acid for pharmaceutical residues adsorption. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:13675-13687. [PMID: 34595701 DOI: 10.1007/s11356-021-16599-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
A new generation of a green polymeric matrix, chitosan/alginate-polyethyleniminemethylene phosphonic acid (CHIT/ALG-PEIMPA) was examined in comparative study of adsorption and preconcentration of non-steroidal anti-inflammatory drugs (NSAIDs), diclofenac and ibuprofen. The influences of experimental parameters like pH, time reaction, initial concentration, ionic strength were investigated. The scanning electron microscopy (SEM) images showed heterogeneous morphology with different particle sizes of agglomerates from few micrometers to a hundred micrometers and irregular particles shape, before pharmaceuticals products adsorption. However, after adsorption, SEM micrograph reveals a smooth surface structure of agglomerate, and even in this smaller magnification, it was possible to observe the formation of homogenous and regular surface of CHIT/ALG-PEIMPA. Elementary analysis (EDX) reveals that the phosphonic acid (PEIMPA) was successfully cross-linked onto chitosan/alginate. The maximal adsorption capacity was found to be 222 mg.g-1, and 122 mg.g-1 under optimum conditions for diclofenac and ibuprofen respectively. The kinetic modeling followed the pseudo-second-order rate expression for both pharmaceutical drugs. Thermodynamics data leads to an exothermic and spontaneous adsorption processes (∆H = -34.32 KJ mol-1; ∆H =-21.59 KJ mol-1), respectively for diclofenac and ibuprofen.
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Affiliation(s)
- Nacer Ferrah
- University Center Salhi Ahmed, Naâma, BP 66, 45000, Naâma, DZA, Algeria.
- Laboratory of Inorganic Chemistry and Environment, Department of Chemistry, Tlemcen University, Box 119, Tlemcen, Algeria.
| | - Djamila Merghache
- Antibiotics, Antifungal, Physico-Chemistry, Synthesis and Biological Activity Laboratory, Department of Biology, Faculty of Natural Sciences and Life Sciences of the Earth and the Universe, University of Tlemcen, Tlemcen, Algeria
| | - Sara Meftah
- Laboratory of Inorganic Chemistry and Environment, Department of Chemistry, Tlemcen University, Box 119, Tlemcen, Algeria
| | - Souheyla Benbellil
- Laboratory of Inorganic Chemistry and Environment, Department of Chemistry, Tlemcen University, Box 119, Tlemcen, Algeria
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El-Denglawey A, Mubarak MF, Selim H. Tertiary Nanocomposites of Metakaolinite/Fe3O4/SBA-15 Nanocomposite for the Heavy Metal Adsorption: Isotherm and Kinetic Study. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-021-05690-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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