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

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dc.contributor.author Park, Sanghun ko
dc.contributor.author Kim, Suhan ko
dc.contributor.author Park, Jongkwan ko
dc.contributor.author Cho, Kyung Hwa ko
dc.date.available 2020-02-27T12:33:05Z -
dc.date.created 2020-02-20 ko
dc.date.issued 2020-03 ko
dc.identifier.citation JOURNAL OF MEMBRANE SCIENCE, v.597, pp.117778 ko
dc.identifier.issn 0376-7388 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/31233 -
dc.description.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. ko
dc.language 영어 ko
dc.publisher Elsevier BV ko
dc.title Real-time monitoring the spatial distribution of organic fouling using fluorescence imaging technique ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85077071223 ko
dc.identifier.wosid 000512684200061 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.memsci.2019.117778 ko
dc.identifier.url https://www.sciencedirect.com/science/article/pii/S0376738819326626?via%3Dihub ko
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