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Effect of flux fluctuation on the fouling in membrane water treatment system for smart water grid

Authors
Kim, SuhanLim, Jae-LimPark, Jong-YulKim, Jong Oh
Issue Date
Jan-2014
Publisher
DESALINATION PUBL
Keywords
Smart water grid; Membrane water treatment system; Flux fluctuation; Membrane fouling; Field application
Citation
DESALINATION AND WATER TREATMENT, v.52, no.4-6, pp.1028 - 1034
Indexed
SCIE
SCOPUS
Journal Title
DESALINATION AND WATER TREATMENT
Volume
52
Number
4-6
Start Page
1028
End Page
1034
URI
https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/160800
DOI
10.1080/19443994.2013.826775
ISSN
1944-3994
Abstract
Smart water grid is a water network with communication to save water and energy. In smart water grid, decentralized water management system is more suitable than the conventional centralized system. Membrane process can be a potent option of water treatment system for decentralized water management system due to stable product water quality regardless of periodic changes in water production rate (flux fluctuation) to meet a real-time water demand. In this study, the effect of flux fluctuation on membrane fouling was investigated using a simple microfiltration (MF) fouling model for field application. The fouling model was verified by operation data of a pilot-scale MF plant with two commercial MF membrane modules (72m(2) of membrane area). From the MF simulation results, we found that periodic change in flux can induce higher fouling than the constant flux and the fouling becomes more severe as the range of the fluctuation increases. It was also found that the frequency of flux fluctuation was not related to fouling, if the average flux and the fluctuation range were not changed. Therefore, the range of flux fluctuation should be carefully designed when flux fluctuation in inevitable in membrane water treatment for smart water grid.
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COLLEGE OF ENGINEERING (DEPARTMENT OF CIVIL AND ENVIRONMENTAL ENGINEERING)
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