Abstract
A simple grafting procedure was developed for surface modification of commercial polyamide reverse osmosis membranes. The modifications were monitored by spectral analysis. This technique was also used for study of membrane hydration. It was established that water interaction with surface functional groups of polyacrylonitrile (PAN) modified membrane produced very strong changes in the regions of C=O and C-O stretching vibrations. Adsorption and pressure experiments using Nahal Taninim feed water have been conducted on modified RO membranes. The membranes have been examined by ATR/FTIR for extent of adsorption of organic contaminants. Comparison with unmodified membranes shows that surface modification of the membranes resulted in drastic decrease in contaminant adsorption for some polymer grafts and increased ease in rinsing the contaminated surface.
| Original language | English |
|---|---|
| Pages (from-to) | 175-180 |
| Number of pages | 6 |
| Journal | Desalination |
| Volume | 124 |
| Issue number | 1-3 |
| DOIs | |
| State | Published - 1 Nov 1999 |
| Event | Proceedings of the 1999 European Conference on Desalination and the Environment - Las Palmas, Spain Duration: 9 Nov 1999 → 12 Nov 1999 |
Keywords
- ATR/FTIR study
- Fouling
- Hydration
- Redox initiation
- Surface modification
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- General Materials Science
- Water Science and Technology
- Mechanical Engineering