BROWSE

Related Researcher

Author's Photo

Cho, Jaeweon
OWIELAB(Organic-Water Interface Engineering Laboratory)
Research Interests
  • Convergence of Science and Arts, Feces Standard Money (FSM), Water & Energy

ITEM VIEW & DOWNLOAD

Fouling mitigation of anion exchange membrane by zeta potential control

Cited 27 times inthomson ciCited 27 times inthomson ci
Title
Fouling mitigation of anion exchange membrane by zeta potential control
Author
Park, Jin-SooLee, Hong-JooChoi, Seok-JuGeckeler, Kurt E.Cho, JaeweonMoon, Seung-Hyeon
Keywords
Anion exchange membrane; Electrodialysis; Fouling mitigation; Humate; Water-soluble polymer; Zeta potential
Issue Date
2003-03
Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
Citation
JOURNAL OF COLLOID AND INTERFACE SCIENCE, v.259, no.2, pp.293 - 300
Abstract
The feasibility of fouling mitigation of anion exchange membranes (AEMs) in the presence of humate was studied by adding three different types of water-soluble polymers, i.e., poly(acrylic acid) (PAA), poly(vinyl alcohol) (PVA), and poly(ethylene imine) (PEI), during electrodialysis (ED) desalination. Measurement of zeta potential of the humate used in this study showed highly negative potential (about -30 mV), implying that the humate had a strong fouling potential on the AEMs in ED. Of the three water-soluble polymers, PEI showed a positive zeta potential (about +14 mV) and is able to form an interpolymer complex with the humate. PAA and PVA hardly formed interpolymer complexes with humate due to electrostatic repulsion. The PEI-humate mixture with a volume ratio of 1:20 (PEI:humate) showed zero zeta potential, and a complexed humate with zero surface charge was formed, resulting in no fouling effects on the AEMs. Accordingly, the desalting ED experiments with PEI showed improved ED performance. Further, black colloids formed in the mixture did not cause the cell resistance to increase. (C) 2003 Elsevier Science (USA). All rights reserved
URI
Go to Link
DOI
10.1016/S0021-9797(02)00095-4
ISSN
0021-9797
Appears in Collections:
UEE_Journal Papers
Files in This Item:
1-s2.0-S0021979702000954-main.pdf Download

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU