Equilibrium characteristics of sorption of some phenolic compounds by FIBAN A-1 fiber from aqueous solutions
Abstract
Many phenolic compounds are related to the group of toxic substances, the occurrence of which in wastewater has a negative impact on the environment. In addition to extraction, biochemical, and membrane methods for the isolation of hydroxybenzenes from aqueous media, sorption methods using active carbon, nonionic polymers, and ion-exchange materials are also actively used. The purpose of this work was to establish the features of the sorption of phenol, resorcinol and phloroglucinol from aqueous solutions with FIBAN fibers.
Sorption was studied under static conditions at a temperature of 298 K. An assessment of the amount of absorbed sorbates by fibers of various nature indicates that FIBAN A-1 fiber exhibits better capacity characteristics relative to phenolic compounds. This fact is due to the nature of the matrix (styrene-divinylbenzene) and the high basicity of the functional groups of this sorbent, which increase the number of sorption centers for the uptake of hydroxybenzenes.
The isotherms of the sorption of phenol, resorcinol and phloroglucin in the concentration range 0.5-
10 mmol/dm3 indicate the affinity of FIBAN A-1 to these sorbates. In the entire range of concentrations studied, the highest recovery rates are characteristic of trihydroxybenzene. The paper provides a formal analysis of the obtained equilibrium curves based on the choice of the sorption equation that most closely describes the experimental dependences. The apparent constants of sorption equilibrium are calculated, the energy characteristics of uptake process are estimated.
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Nikolaeva L.A., Ajkenova N.E. Adsorbcionnaya ochistka fenolsoderzhashchih stochnyh vod neftepererabatyvayushchih predpriyatij. Teoreticheskaya i prikladnaya ekologiya. 2020; 4: 136-142. https://doi.org/10.25750/1995-4301-2020-4-136-142 (In Russ.)
Ahmaruzzaman M. Adsorption of phenolic compounds on low-cost adsorbents: A review. Adv Colloid Interface Sci. 2008; 143(1-2): 48-67. https://doi.org/10.1016/j.cis.2008.07.00
Suresh S., Srivastava V.C., Mishra I.M., Anubhav Pratap-Singh Multicomponent column optimization of ternary adsorptionbased removal of phenolic compounds using modified activated carbon. Journal of Environmental Chemical Engineering. 2021; 9(1): 104843. https://doi.org/10.1016/j.jece.2020.104843
Podolina E.A. Sovremennye sposoby koncentrirovaniya fenola i alkilfenolov iz materialov i ob"ektov okruzhayushchej sredy. Nauchnyj vestnik VGTU: Fiziko-himicheskie problemy stroitel'nogo materialovedeniya. 2009; 2: 46-66. (In Russ.)
Alara O.R., Abdurahman N.H., Ukaegbu Ch.I. Extraction of phenolic compounds: A review. Current Research in Food Science. 2021; 4; 200-214. https://doi.org/10.1016/j.crfs.2021.03.011
Acero J.L., Javier Benítez F., Leal I., Francisco J. Real Removal of Phenolic Compounds in Water by Ultrafiltration Membrane Treatments, Journal of Environmental Science and Health, Part A, 2005; 40(8): 1585-1603. https://doi.org/10.1081/ESE-200060651
Phenol. Электронный ресурс: https://pubchem.ncbi.nlm.nih.gov/compound/996 date of application: 15.04.2023)
Resorcinol. Электронный ресурс: https://pubchem.ncbi.nlm.nih.gov/compound/5054 (date of application: 15.04.2023)
Phloroglucinol. Электронный ресурс: https://pubchem.ncbi.nlm.nih.gov/compound/Phloroglucinol (date of application: 15.04.2023)
Wang Degui, Hildenbrand Knut, Leitich, Johannes, Schuchmann, Heinz-Peter and Sonntag, Clemens von. "pH-Dependent Tautomerism and pKa Values of Phloroglucinol (1,3,5-Trihydroxybenzene), Studied by 13C NMR and UV Spectroscopy" Zeitschrift für Naturforschung B, 1993; 48(4): 478-482. https://doi.org/10.1515/znb-1993-0413
Himicheski aktivnye volokna dlya ochistki vozdushnyh i vodnyh sred FIBAN. Elektronnyj resurs: https://ifoch.by/research/fiban/ (date of application: 15.04.2023)
TRILITE AMP26. Strong Base Anion Exchange Resin, Macroporous Type. Электронный ресурс: https://www.samyangtrilite.com/technical-data/TRILITE-AMP26 (date of application: 15.04.2023)
Elinson I.S., Martinovich V.I., Omel'-chenko T.N. Sorbciya fenola iz vodnyh rastvorov voloknistymi anionitami fiban. Sorbtsionnye i khromatograficheskie protsessy. 2004; 4(4): 475-481. (In Russ.)
Langmuir I. The constitution and fundamental properties of solids and liquids. ii. Liquids. Journal of the American Chemical Society. 1917; 39(9): 1848-1906.
Freundlich. H. M. F. Over the Adsorption in Solution. Journal Physical Chemistry. 1906; 57: 385-470.
Voyuckij S.S. Kurs kolloidnoj khimii. M., Khimiya. 1976. 512 p. (In Russ.)
