Fouling and cleaning of polymer-entwined graphene oxide nanocomposite membrane for forward osmosis process

Seungju Kim, Ranwen Ou, Yaoxin Hu, Huacheng Zhang, George P. Simon, Hongjuan Hou, Huanting Wang

Research output: Contribution to journalArticleResearchpeer-review

3 Citations (Scopus)

Abstract

In this study, we have characterized membrane fouling of polymer-entwined graphene oxide membranes with a simulated feed solution containing organic foulants for wastewater treatment applications, as well as with a simulated inorganic wastewater with high iron and silicon concentrations relevant to steel industry wastewater reclamation. Membrane cleaning processes by cross-flow surface flushing with water were then applied to demonstrate water flux recovery for long-term application. Salt rejection property was retained constant during fouling process, whereas water flux was found to be reduced continuously due to fouling but was readily recoverable following surface flushing.

Original languageEnglish
Pages (from-to)1376-1386
Number of pages11
JournalSeparation Science and Technology
Volume54
Issue number8
DOIs
Publication statusPublished - 2019

Keywords

  • desalination
  • forward osmosis
  • graphene membrane
  • Membrane fouling
  • organic wastewater
  • steel wastewater

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