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Removal of tetracycline from wastewater using pumice stone: equilibrium, kinetic and thermodynamic studies
In this study, pumice stone was used for the removal of tetracyline (TC) from aqueous solutions. It was characterized by XRD, FT-IR, SEM and BET analyses. Cation exchange capacity of pumice stone was found to be 9.9 meq/100 g. Effect of various parameters such as solution pH (2–11), adsorbent dosage...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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BioMed Central
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4038404/ https://www.ncbi.nlm.nih.gov/pubmed/24936305 http://dx.doi.org/10.1186/2052-336X-12-79 |
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author | Guler, Ulker Asli Sarioglu, Meltem |
author_facet | Guler, Ulker Asli Sarioglu, Meltem |
author_sort | Guler, Ulker Asli |
collection | PubMed |
description | In this study, pumice stone was used for the removal of tetracyline (TC) from aqueous solutions. It was characterized by XRD, FT-IR, SEM and BET analyses. Cation exchange capacity of pumice stone was found to be 9.9 meq/100 g. Effect of various parameters such as solution pH (2–11), adsorbent dosage (0.5-10 g/L), contact time (2.5-120 min), initial TC concentration (5–300 mg/L) and temperature (20–50°C) on TC adsorption onto pumice was investigated. Also the adsorption of TC on pumice stone was studied as a function of Na(+) and Cu(2+) cations changing pH from 2 to 11 using batch experiments. The best removal efficiency performance was exhibited at adsorbent dosage 10 g/L, pH 3, contact time 120 min. Langmuir, Freundlich and Dubinin-Radushkevich (D-R) isotherm models were applied to the equilibrium data. The result has shown that the adsorption was favorable, physicochemical in nature and agrees well with Langmuir and Freundlich models. The maximum Langmuir adsorption capacity was found to be 20.02 mg/g. The adsorption behavior of TC on pumices stone was fitted well in the pseudo-second order kinetics model. Thermodynamic parameters calculated from the adsorption data at different temperature showed that the adsorption reaction was feasible, spontaneous and exothermic. |
format | Online Article Text |
id | pubmed-4038404 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | BioMed Central |
record_format | MEDLINE/PubMed |
spelling | pubmed-40384042014-06-16 Removal of tetracycline from wastewater using pumice stone: equilibrium, kinetic and thermodynamic studies Guler, Ulker Asli Sarioglu, Meltem J Environ Health Sci Eng Research Article In this study, pumice stone was used for the removal of tetracyline (TC) from aqueous solutions. It was characterized by XRD, FT-IR, SEM and BET analyses. Cation exchange capacity of pumice stone was found to be 9.9 meq/100 g. Effect of various parameters such as solution pH (2–11), adsorbent dosage (0.5-10 g/L), contact time (2.5-120 min), initial TC concentration (5–300 mg/L) and temperature (20–50°C) on TC adsorption onto pumice was investigated. Also the adsorption of TC on pumice stone was studied as a function of Na(+) and Cu(2+) cations changing pH from 2 to 11 using batch experiments. The best removal efficiency performance was exhibited at adsorbent dosage 10 g/L, pH 3, contact time 120 min. Langmuir, Freundlich and Dubinin-Radushkevich (D-R) isotherm models were applied to the equilibrium data. The result has shown that the adsorption was favorable, physicochemical in nature and agrees well with Langmuir and Freundlich models. The maximum Langmuir adsorption capacity was found to be 20.02 mg/g. The adsorption behavior of TC on pumices stone was fitted well in the pseudo-second order kinetics model. Thermodynamic parameters calculated from the adsorption data at different temperature showed that the adsorption reaction was feasible, spontaneous and exothermic. BioMed Central 2014-05-01 /pmc/articles/PMC4038404/ /pubmed/24936305 http://dx.doi.org/10.1186/2052-336X-12-79 Text en Copyright © 2014 Guler and Sarioglu; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. |
spellingShingle | Research Article Guler, Ulker Asli Sarioglu, Meltem Removal of tetracycline from wastewater using pumice stone: equilibrium, kinetic and thermodynamic studies |
title | Removal of tetracycline from wastewater using pumice stone: equilibrium, kinetic and thermodynamic studies |
title_full | Removal of tetracycline from wastewater using pumice stone: equilibrium, kinetic and thermodynamic studies |
title_fullStr | Removal of tetracycline from wastewater using pumice stone: equilibrium, kinetic and thermodynamic studies |
title_full_unstemmed | Removal of tetracycline from wastewater using pumice stone: equilibrium, kinetic and thermodynamic studies |
title_short | Removal of tetracycline from wastewater using pumice stone: equilibrium, kinetic and thermodynamic studies |
title_sort | removal of tetracycline from wastewater using pumice stone: equilibrium, kinetic and thermodynamic studies |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4038404/ https://www.ncbi.nlm.nih.gov/pubmed/24936305 http://dx.doi.org/10.1186/2052-336X-12-79 |
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