Supported Liquid Membranes for the Removal of Pharmaceuticals from Aqueous Solutions
| Autor: | Farah, Mary, Giralt Marcé, Jaume, Stüber, Frank Erich, Font Capafons, Josep, Fabregat Llangostera, Azael, Fortuny Sanromá, Agustín |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Química |
| Rok vydání: | 2022 |
| Předmět: |
Supported liquid membrane
Solvent extraction Process Chemistry and Technology Pharmaceutical contaminant Membranes (Tecnologia) Extraction (Chemistry) Extracció (Química) Membranes (Technology) Permeability Membranes líquides Enginyeria química [Àrees temàtiques de la UPC] Cyanex 923 Safety Risk Reliability and Quality Stability Waste Management and Disposal Liquid membranes Biotechnology |
| Zdroj: | SSRN Electronic Journal. |
| ISSN: | 1556-5068 |
| Popis: | In the following study, the extraction of three pharmaceutical compounds: Diclofenac (DCF), ibuprofen (IBP), and carbamazepine (CBZ) by liquid-liquid extraction and their transport by supported liquid membrane (SLM) using different commercial extractants (Cyanex 923 (Cy923), trioctylamine (TOA), tributylphosphate (TBP), and Versatic Acid 10 (neodecanoic acid)) were evaluated. Cy923 was demonstrated to be an efficient extractant for diclofenac and ibuprofen removal through a facil- itated transport mechanism from the aqueous feed phase to the aqueous stripping phase using hydroxide ions as stripping agent. Around 80 % of these pharmaceuticals were extracted in 4 h with 10 % of Cy923 and without extreme alteration in the pH. As for carbamazepine, the stripping conditions were achieved with 10 % of Versatic Acid 10. Variation of concentration of different extractants indicates that a higher transport of diclofenac can be obtained by using 40 % of Cy923. In addition, two commercial polymeric supports (PTFE and PVDF) were compared for the selected operational conditions. Finally, the lifetime of the membrane was extended by soaking the polymeric material in the organic solution under vacuum for 24 h and compared with the membrane pre- pared with an ultrasound-assisted method. Supported liquid membranes present many advantages and can easily be manipulated and integrated for the treatment of persistent pharmaceutical contaminants from water. This project has been supported by the grant RTI2018-096467-B-I00 funded by MCIN/AEI/10.PK039/501100011033 and “ERDF A way of making Europe”. The authors research group is recognized by the Comissionat per a Universitats i Recerca, DIUE de la Generalitat de Catalunya (2017 SGR 396), and supported by the Universitat Rovira i Virgili (2021PFR-URV-87) and Marti Franques grant 2019PMF-PIPF-81. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|