Publicação
Monitoring of emerging micropollutants in water matrices and its removal by adsorption processes using biomass-based materials
| Resumo: | Sertraline is a pharmaceutical drug used for the relief of depressive severe situations. Since sertraline has been widely prescribed for medical purposes in Portugal for the past ten years and may thus be found in various water media, it was employed in this work as a prototype antidepressant molecule for removal investigations using biobased materials, such as olive stones. The present work aims to study the removal of sertraline through adsorption using activated charcoal from the olive pit. Therefore, this work is based on the preparation of the adsorbent from the olive stone, namely activated carbonized then make the physicochemical characterization and study the process of removal of sertraline by the experimental measuring of main operational conditions of pH, mass of adsorbent, temperature and kinetics of adsorption. The removal studies showed that the optimal pH for the adsorption of sertraline was around neutrality, The effect of the olive stone activated carbon dosage on sertraline removal was studied by varying the amount of the adsorbent from 10 mg to 55 mg presenting a maximum adsorption equal to 97% with 55mg in 48h. The adsorption process was chemisorption in nature since the kinetics behavior is better described by the pseudo-second order reaction model. |
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| Autores principais: | Belgacem, Mohamed Ben |
| Assunto: | Sertralina Caroços de azeitona |
| Ano: | 2024 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| Resumo: | Sertraline is a pharmaceutical drug used for the relief of depressive severe situations. Since sertraline has been widely prescribed for medical purposes in Portugal for the past ten years and may thus be found in various water media, it was employed in this work as a prototype antidepressant molecule for removal investigations using biobased materials, such as olive stones. The present work aims to study the removal of sertraline through adsorption using activated charcoal from the olive pit. Therefore, this work is based on the preparation of the adsorbent from the olive stone, namely activated carbonized then make the physicochemical characterization and study the process of removal of sertraline by the experimental measuring of main operational conditions of pH, mass of adsorbent, temperature and kinetics of adsorption. The removal studies showed that the optimal pH for the adsorption of sertraline was around neutrality, The effect of the olive stone activated carbon dosage on sertraline removal was studied by varying the amount of the adsorbent from 10 mg to 55 mg presenting a maximum adsorption equal to 97% with 55mg in 48h. The adsorption process was chemisorption in nature since the kinetics behavior is better described by the pseudo-second order reaction model. |
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