Abstract
PVDF (poly vinylidene fluoride) membrane was modified with glycidyl methacrylate (GMA) and sodium sulfite using a radiation-induced graft polymerization technique for unique ammonia removal process. Ion exchange capacities (IECs) of unmodified PVDF membrane, modified PVDF membrane and commercial cation exchange membrane (CEM) were investigated. The IEC value increased as the concentration of GMA increased. Batch experiments were carried out to evaluate the ion transport via the modified membrane. The mass flux of ammonia via the CEM and modified membrane at the initial ammonia concentration of 2000 mg/L were 1.16 mg-NH4+/m2 s and 2.89 mg-NH4+/m2 s, respectively.
Original language | English |
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Pages (from-to) | 103-110 |
Number of pages | 8 |
Journal | Journal of Industrial and Engineering Chemistry |
Volume | 46 |
DOIs | |
Publication status | Published - 2017 Feb 25 |
Keywords
- Ion-exchange membrane bioreactor
- Membrane modification
- Nitrogen removal
- PVDF membrane
- Radiation grafting
ASJC Scopus subject areas
- Chemical Engineering(all)