Fouling and cleaning of polymer-entwined graphene oxide nanocomposite membrane for forward osmosis process. Issue 8 (24th May 2019)

• Record Type: Journal Article
• Authors: Kim, Seungju; Ou, Ranwen; Hu, Yaoxin; Zhang, Huacheng; Simon, George P.; Hou, Hongjuan; Wang, Huanting
• Is Part Of: Separation science and technology. Volume 54:Issue 8(2019)
• Page Start: 1376
• Page End: 1386
• Publication Date: 2019-05-24
• Subjects: Membrane fouling -- forward osmosis -- graphene membrane -- organic wastewater -- steel wastewater -- desalination; Separation (Technology) -- Periodicals; 660.284205
• DOI: 10.1080/01496395.2018.1533868
• Languages: English
• ISSNs: 0149-6395

Abstract

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.