Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 46, Issue -, Pages 103-110Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2016.10.020
Keywords
PVDF membrane; Membrane modification; Radiation grafting; Ion-exchange membrane bioreactor; Nitrogen removal
Funding
- nuclear R&D program and basic science research program through the national research foundation of Korea (NRF)
- Ministry of Science, ICT and Future Planning
- National Research Council of Science & Technology (NST), Republic of Korea [523300-17] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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+/m(2) s and 2.89 mg-NH4+/m(2) s, respectively. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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