Adsorption And Desorption Of Oxytetracyline Hydrochloride On The Activated Carbon

The adsorption and desorption of Oxytetracycline hydrochloride (OTC HCl) onto wood-based powdered activated carbon was studied in batch equilibrium experiments. Various experimental parameters were studied including initial OTC HCl concentration (5-25 ppm), pH of the solution (3-7) and temperatur...

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Main Author: Nazir, Muhammad Ismathanif Md
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2017
Subjects:
Online Access:http://eprints.usm.my/53120/1/Adsorption%20And%20Desorption%20Of%20Oxytetracyline%20Hydrochloride%20On%20The%20Activated%20Carbon_Muhammad%20Ismathanif%20%20Md%20Nazir_K4_2017.pdf
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author Nazir, Muhammad Ismathanif Md
author_facet Nazir, Muhammad Ismathanif Md
author_sort Nazir, Muhammad Ismathanif Md
collection USM
description The adsorption and desorption of Oxytetracycline hydrochloride (OTC HCl) onto wood-based powdered activated carbon was studied in batch equilibrium experiments. Various experimental parameters were studied including initial OTC HCl concentration (5-25 ppm), pH of the solution (3-7) and temperature of the solution (30-50�). The experimental data were analysed using Langmuir and Freundlich isotherm model and the goodness of fits were checked by using linear regression coefficients (R2). It was found that, Langmuir isotherm model best represented the equilibrium data. Pseudo-first-order and pseudo-second-order kinetic model were used to analyse the kinetic data. It was found that the best fitting corresponded to the pseudo-second-order kinetic model. Various thermodynamics parameters, such as Gibbs energy, enthalpy change and entropy change, were calculated, which indicated that the present system was unspontaneous and endothermic process for OTC HCl. Based on the value of activation energy, it is also found that the adsorption mechanism was not only limited to physical adsorption but also chemisorption too for several different temperatures. The adsorption of OTC HCl on this activated carbon can be maintained above 80% across the 5 adsorption-desorption cycles and potassium chloride had been used as a desorption medium. The activated carbon was characterized by using FTIR, TGA, and surface area analyser. Other than that, the pHpzc of the activated carbon also had been identified in this experiment.
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spelling usm.eprints-531202022-06-27T08:32:02Z http://eprints.usm.my/53120/ Adsorption And Desorption Of Oxytetracyline Hydrochloride On The Activated Carbon Nazir, Muhammad Ismathanif Md T Technology TP155-156 Chemical engineering The adsorption and desorption of Oxytetracycline hydrochloride (OTC HCl) onto wood-based powdered activated carbon was studied in batch equilibrium experiments. Various experimental parameters were studied including initial OTC HCl concentration (5-25 ppm), pH of the solution (3-7) and temperature of the solution (30-50�). The experimental data were analysed using Langmuir and Freundlich isotherm model and the goodness of fits were checked by using linear regression coefficients (R2). It was found that, Langmuir isotherm model best represented the equilibrium data. Pseudo-first-order and pseudo-second-order kinetic model were used to analyse the kinetic data. It was found that the best fitting corresponded to the pseudo-second-order kinetic model. Various thermodynamics parameters, such as Gibbs energy, enthalpy change and entropy change, were calculated, which indicated that the present system was unspontaneous and endothermic process for OTC HCl. Based on the value of activation energy, it is also found that the adsorption mechanism was not only limited to physical adsorption but also chemisorption too for several different temperatures. The adsorption of OTC HCl on this activated carbon can be maintained above 80% across the 5 adsorption-desorption cycles and potassium chloride had been used as a desorption medium. The activated carbon was characterized by using FTIR, TGA, and surface area analyser. Other than that, the pHpzc of the activated carbon also had been identified in this experiment. Universiti Sains Malaysia 2017-05-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/53120/1/Adsorption%20And%20Desorption%20Of%20Oxytetracyline%20Hydrochloride%20On%20The%20Activated%20Carbon_Muhammad%20Ismathanif%20%20Md%20Nazir_K4_2017.pdf Nazir, Muhammad Ismathanif Md (2017) Adsorption And Desorption Of Oxytetracyline Hydrochloride On The Activated Carbon. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Kimia. (Submitted)
spellingShingle T Technology
TP155-156 Chemical engineering
Nazir, Muhammad Ismathanif Md
Adsorption And Desorption Of Oxytetracyline Hydrochloride On The Activated Carbon
title Adsorption And Desorption Of Oxytetracyline Hydrochloride On The Activated Carbon
title_full Adsorption And Desorption Of Oxytetracyline Hydrochloride On The Activated Carbon
title_fullStr Adsorption And Desorption Of Oxytetracyline Hydrochloride On The Activated Carbon
title_full_unstemmed Adsorption And Desorption Of Oxytetracyline Hydrochloride On The Activated Carbon
title_short Adsorption And Desorption Of Oxytetracyline Hydrochloride On The Activated Carbon
title_sort adsorption and desorption of oxytetracyline hydrochloride on the activated carbon
topic T Technology
TP155-156 Chemical engineering
url http://eprints.usm.my/53120/1/Adsorption%20And%20Desorption%20Of%20Oxytetracyline%20Hydrochloride%20On%20The%20Activated%20Carbon_Muhammad%20Ismathanif%20%20Md%20Nazir_K4_2017.pdf
work_keys_str_mv AT nazirmuhammadismathanifmd adsorptionanddesorptionofoxytetracylinehydrochlorideontheactivatedcarbon