Evaluation of Thin Film Composite Forward Osmosis Membranes: Effect of Polyamide Preparation Conditions
| Autor: | Aya Mohammed Kadhom, Mustafa Al-Furaiji, Zaidun Naji Abudi |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
lcsh:T Forward osmosis 02 engineering and technology 021001 nanoscience & nanotechnology Pollution Desalination Chloride Interfacial polymerization lcsh:Technology lcsh:TD1-1066 Membrane 020401 chemical engineering Chemical engineering Thin-film composite membrane Polyamide medicine 0204 chemical engineering lcsh:Environmental technology. Sanitary engineering 0210 nano-technology Reverse osmosis Water Science and Technology Civil and Structural Engineering medicine.drug |
| Zdroj: | Drinking Water Engineering and Science, Vol 14, Pp 45-52 (2021) |
| ISSN: | 1996-9465 |
| Popis: | The forward osmosis (FO) process has been considered for desalination as a competitive option with respect to the traditional reverse osmosis process. The interfacial polymerization (IP) reaction between two monomers (i.e., m-phenylenediamine, MPD, and 1,3,5-benzenetricarbonyl chloride, TMC) is typically used to prepare the selective polyamide layer that prevents salts and allows water molecules to pass. In this research, we investigated the effect of preparation conditions (MPD contact time, TMC reaction time, and addition of an amine salt) on the FO performance in terms of water flux and salt flux. The results showed that increasing MPD contact time resulted in a significant increase in the water flux and salt flux. However, increasing TMC reaction time caused a decline in both the water flux and the salt flux. The optimum condition that gave the highest water flux (64 L m−2 h−1) was found to be as 5 min for MPD and 1 min for TMC. The addition of an amine salt of camphorsulfonic acid-triethylamine (CSA-TEA) was able to have an apparent effect on the FO process by increasing the water flux (74.5 L m−2 h−1). |
| Databáze: | OpenAIRE |
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