Biopolymer-based nanosystem for ferric ion removal from water

Magdolna Bodnár, István Hajdu, Eszter Rothi, Nóra Harmati, Zsuzsanna Csikós, John F. Hartmann, Csaba Balogh, Béla Kelemen, János Tamás, J. Borbély

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The removal of ferric ions from aqueous solutions by a nanoparticle- enhanced ultrafiltration technique was investigated. Biodegradable poly-gamma-glutamic acid (γ-PGA), a linear biopolymer, and its cross-linked nanoparticles were used to complex the metal ions by forming nanosized spherical particles with more or less deformability. These polymer-metal ion particles were then removed by membrane separation. Two ultrafiltration techniques were studied with the aim of developing a nanoparticle-enhanced separation process for the efficient removal of ferric ions from model solutions. The influence of parameters such as the feed γ-PGA and Fe3+ concentrations, their proportions and the extent of cross-linking of γ-PGA were studied. It was observed that γ-PGA could bind and remove ferric ions to produce water with low Fe3+ concentration. These studies show that optimal nano-membrane separation technology can be performed, depending on the environment and quality of treatable water by the combination of the filtration parameters and type of membrane techniques shown here.

Original languageEnglish
Pages (from-to)26-33
Number of pages8
JournalSeparation and Purification Technology
Volume112
DOIs
Publication statusPublished - 2013

Fingerprint

Prostaglandins A
Nanosystems
Biopolymers
Ultrafiltration
Ions
Nanoparticles
Membranes
Metal ions
Water
Formability
Polymers
Acids

Keywords

  • Ferric ion
  • Micro-irrigation
  • Poly-gamma-glutamic acid
  • Removal
  • Ultrafiltration

ASJC Scopus subject areas

  • Analytical Chemistry
  • Filtration and Separation

Cite this

Biopolymer-based nanosystem for ferric ion removal from water. / Bodnár, Magdolna; Hajdu, István; Rothi, Eszter; Harmati, Nóra; Csikós, Zsuzsanna; Hartmann, John F.; Balogh, Csaba; Kelemen, Béla; Tamás, János; Borbély, J.

In: Separation and Purification Technology, Vol. 112, 2013, p. 26-33.

Research output: Contribution to journalArticle

Bodnár, M, Hajdu, I, Rothi, E, Harmati, N, Csikós, Z, Hartmann, JF, Balogh, C, Kelemen, B, Tamás, J & Borbély, J 2013, 'Biopolymer-based nanosystem for ferric ion removal from water', Separation and Purification Technology, vol. 112, pp. 26-33. https://doi.org/10.1016/j.seppur.2013.03.043
Bodnár, Magdolna ; Hajdu, István ; Rothi, Eszter ; Harmati, Nóra ; Csikós, Zsuzsanna ; Hartmann, John F. ; Balogh, Csaba ; Kelemen, Béla ; Tamás, János ; Borbély, J. / Biopolymer-based nanosystem for ferric ion removal from water. In: Separation and Purification Technology. 2013 ; Vol. 112. pp. 26-33.
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