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

Membrane characterizations for mitigation of organic fouling during desalination and wastewater reclamation

Cited 8 times inthomson ciCited 9 times inthomson ci
Title
Membrane characterizations for mitigation of organic fouling during desalination and wastewater reclamation
Author
Kim, SunjinPark, NoeonLee, SungyunCho, Jaeweon
Keywords
Desalination; Hydrophobicity; Membrane surface charge; Natural organic matter fouling; Optimum membrane selection
Issue Date
2009-03
Publisher
ELSEVIER SCIENCE BV
Citation
DESALINATION, v.238, no.1-3, pp.70 - 77
Abstract
Measurements of contact angle, zeta potential, and pore size distribution for clean, cationic surfactant coated, and organic fouled membranes, were conducted to obtain membranes properties, from perspectives of organic fouling mitigation. Interaction between natural organic matter (NOM) and the membrane surface was investigated using contact angle measurements, with the results being attempted to be used for mitigation of NOM fouling. Several different membranes, one nanofiltration (NF; NE70), one ultrafiltration (UF; GM), and three reverse osmosis (RO: SR, BE, FRM3) membranes, were tested. With NOM fouled membranes, contact angles obtained from the sessile drop method increased compared to corresponding clean membranes. For cationic surfactant coated membranes, contact angles measured with NaCl and sea salts solutions were substantially lower than those measured with de-ionized pure water, implying the cationic surfactant modification can have a potential to reduce hydrophobic organic fouling during desalination or relatively high salts containing wastewater reclamation processes. For NOM fouled membranes, contact angle increases and the surface charge increases negatively compared to corresponding clean membranes; the membrane surface exhibits greater hydrophobicity and less negative charge, which is supported by the FTIR spectrum measurements
URI
Go to Link
DOI
10.1016/j.desal.2008.01.037
ISSN
0011-9164
Appears in Collections:
UEE_Journal Papers
Files in This Item:
1-s2.0-S001191640800742X-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