BROWSE

Related Researcher

Author's Photo

Cho, Kyung Hwa
Environmental Monitoring and Modeling Lab (EM2)
Research Interests
  • Water Quality Monitoring and Modeling, Water Treatment Process Modeling

ITEM VIEW & DOWNLOAD

Real-time monitoring the spatial distribution of organic fouling using fluorescence imaging technique

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Real-time monitoring the spatial distribution of organic fouling using fluorescence imaging technique
Author
Park, SanghunKim, SuhanPark, JongkwanCho, Kyung Hwa
Issue Date
2020-03
Publisher
Elsevier BV
Citation
JOURNAL OF MEMBRANE SCIENCE, v.597, pp.117778
Abstract
Many studies have demonstrated a close relationship between fouling and fluid dynamics to control fouling formation. However, few have been carried out to validate the relationship in practice, owing to the lack of techniques to evaluate fouling with hydrodynamics. We investigated the organic fouling of humic acid (HA) and tannic acid (TA) at three crossflow velocities using a fluorescence-labelled organism bioimaging instrument (FOBI). Higher crossflow velocity generally enhanced filtration performance; however, the type of foulants induced different fouling formation patterns on the membrane. The monitoring system and computational model revealed that HA fouling had strong (R2 = 0.82) correlation with the shear rate (obtained from a velocity of 10.42 cm/s), while TA had weak correlation (R2 = 0.13). HA fouling showed a high correlation with velocity profile at 10 cm/s, but TA fouling occurred in the over 20 cm/s velocity zone. This is because TA had relatively high adhesive force acting to the membrane, resulting in irreversible fouling that was hardly mitigated by crossflow control. Therefore, this study demonstrated that fouling development was predominantly controlled by hydrodynamic conditions, but the actual fouling distribution could be influenced by the physicochemical properties of dissolved organic matters.
URI
https://scholarworks.unist.ac.kr/handle/201301/31233
URL
https://www.sciencedirect.com/science/article/pii/S0376738819326626?via%3Dihub
DOI
10.1016/j.memsci.2019.117778
ISSN
0376-7388
Appears in Collections:
UEE_Journal Papers
Files in This Item:
There are no files associated with this item.

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