Surface modification of PVDF membrane by radiation-induced graft polymerization for novel membrane bioreactor

In Hwan Shin, Seungkwan Hong, Seung Joo Lim, Youn Suk Son, Tak Hyun Kim

Research output: Contribution to journalArticle

19 Citations (Scopus)

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 languageEnglish
Pages (from-to)103-110
Number of pages8
JournalJournal of Industrial and Engineering Chemistry
Volume46
DOIs
Publication statusPublished - 2017 Feb 25

Keywords

  • Ion-exchange membrane bioreactor
  • Membrane modification
  • Nitrogen removal
  • PVDF membrane
  • Radiation grafting

ASJC Scopus subject areas

  • Chemical Engineering(all)

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