Application of MFI-UF on an ultrapure water production system to monitor the stable performance of RO process

Min Zhan, Hyunkyung Lee, Yongxun Jin, Seungkwan Hong

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Despite significant advances in reverse osmosis (RO) applications, membrane fouling is an inevitable problem that reduces the quantity and quality of produced water and is associated with reducing the energy efficiency of the entire system. The aim of this study was to expand our understanding of the modified fouling index (MFI), which is a reliable tool used to provide insight into the fouling characteristics of the RO process in advance. The applicability of MFI to predict RO membrane performance was verified using a 50 m3/day pilot-scale ultrapure water (UPW) production plant study. The correlation between MFI and RO membrane performance (i.e., ∆(differential pressure)) was well validated based on seven months of pilot operation data. MFI-UFflux-10kDa was selected as a proxy for the fouling potential measurement according to the target process (or source water) to support the stable operation of UPW plant applications. Case studies including sensitivity analyses and electrochemical deionization (EDI) concentrate reclamation have verified the intimate correlation between the MFI and RO performance. The results from the current study are expected to provide practical insight and technical guidelines for RO-based plant engineers/operators.

Original languageEnglish
Article number114565
JournalDesalination
Volume491
DOIs
Publication statusPublished - 2020 Oct 1

Bibliographical note

Funding Information:
This research was supported by the following: 1) a grant from Technology Innovation Program (10052814, Technology development of ultra-pure water process for semiconductor level industrial water and localization for 4 kinds of consumable material) funded by the Ministry of Trade, Industry and Energy, South Korea, and 2) Korea Environment Industry & Technology Institute (KEITI) through Industrial Facilities & Infrastructure Research Program, funded by Korea Ministry of Environment (MOE) (1485016424).

Funding Information:
This research was supported by the following: 1) a grant from Technology Innovation Program ( 10052814 , Technology development of ultra-pure water process for semiconductor level industrial water and localization for 4 kinds of consumable material) funded by the Ministry of Trade, Industry and Energy , South Korea, and 2) Korea Environment Industry & Technology Institute (KEITI) through Industrial Facilities & Infrastructure Research Program, funded by Korea Ministry of Environment (MOE) ( 1485016424 ).

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

  • Electrochemical deionization (EDI) concentrate reclamation
  • Membrane fouling
  • Modified fouling index (MFI)
  • Reverse osmosis (RO)
  • Ultrapure water (UPW)

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • General Materials Science
  • Water Science and Technology
  • Mechanical Engineering

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