Phenol Removal from Water by Polyamide and AgCl Mineralized Thin-Film Composite Forward Osmosis Membranes
| Autor: | Ping Yu, Yangbo Huang, Tianmiao Lai, Mary Laura Lind, Pinar Cay-Durgun |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Fouling
General Chemical Engineering Forward osmosis 02 engineering and technology General Chemistry 010501 environmental sciences 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering Silver chloride chemistry.chemical_compound Membrane chemistry Chemical engineering Ionic strength Thin-film composite membrane Polyamide Phenol 0210 nano-technology 0105 earth and related environmental sciences |
| Zdroj: | Industrial & Engineering Chemistry Research. 57:7021-7029 |
| ISSN: | 1520-5045 0888-5885 |
| Popis: | This study systematically investigated phenol removal from water and phenol fouling of membranes in forward osmosis (FO) using thin-film composite (TFC) polyamide and silver chloride (AgCl) mineralized thin-film composite (MTFC) membranes. The influence of operating parameters (membrane orientation, phenol concentration, draw solution concentration, pH, and ionic strength) on phenol rejection and phenol adsorption to the membrane was investigated to elucidate the phenol transport behaviors in the FO process. Overall, phenol rejection improved with increased draw solution concentration or feed solution pH. At a feed solution pH of 11, TFC membranes exhibited their highest phenol rejection of 97.0% and MTFC membranes exhibited their highest phenol rejection of 98.8%. Phenol adsorption on the membrane surface may be related to the solute hydrophobic character, electrostatic interaction, and reverse salt diffusion. Six-hour fouling experiments show that the phenol fouling of FO membranes is reversible and eas... |
| Databáze: | OpenAIRE |
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