Toward in Situ Healing of Compromised Polymeric Membranes

Behnaz H. Zaribaf; Seung Jin Lee; Jae Hyuk Kim; Pyung Kyu Park; Jae Hong Kim

doi:10.1021/ez4000548

Toward in Situ Healing of Compromised Polymeric Membranes

Behnaz H. Zaribaf, Seung Jin Lee, Jae Hyuk Kim, Pyung Kyu Park, Jae Hong Kim

Division of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Damage to membranes during operation and the consequential loss of process integrity are prevalent problems in membrane-based separation processes, particularly in water and wastewater treatment where ensuring product water quality is essential. We herein present an innovative method of healing compromised polymeric membranes without requiring the knowledge of damage location and the disassembly of a system. This in situ healing method involves preferential blocking of a damaged site using chitosan agglomerates and subsequent cross-linking with glutaraldehyde to form a sturdy plug. Results of this proof-of-concept study suggest that a sample ultrafiltration membrane with severe physical damage could recover its nearly original performance in terms of water permeability (96%) and solute/particle rejection (87-100%) by the healing process.

Original language	English
Pages (from-to)	113-116
Number of pages	4
Journal	Environmental Science and Technology Letters
Volume	1
Issue number	1
DOIs	https://doi.org/10.1021/ez4000548
Publication status	Published - 2013 Oct 7

Bibliographical note

Publisher Copyright:
© 2013 American Chemical Society.

All Science Journal Classification (ASJC) codes

Environmental Chemistry
Ecology
Water Science and Technology
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

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abstract = "Damage to membranes during operation and the consequential loss of process integrity are prevalent problems in membrane-based separation processes, particularly in water and wastewater treatment where ensuring product water quality is essential. We herein present an innovative method of healing compromised polymeric membranes without requiring the knowledge of damage location and the disassembly of a system. This in situ healing method involves preferential blocking of a damaged site using chitosan agglomerates and subsequent cross-linking with glutaraldehyde to form a sturdy plug. Results of this proof-of-concept study suggest that a sample ultrafiltration membrane with severe physical damage could recover its nearly original performance in terms of water permeability (96%) and solute/particle rejection (87-100%) by the healing process.",

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AU - Zaribaf, Behnaz H.

AU - Lee, Seung Jin

AU - Kim, Jae Hyuk

AU - Park, Pyung Kyu

AU - Kim, Jae Hong

PY - 2013/10/7

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AB - Damage to membranes during operation and the consequential loss of process integrity are prevalent problems in membrane-based separation processes, particularly in water and wastewater treatment where ensuring product water quality is essential. We herein present an innovative method of healing compromised polymeric membranes without requiring the knowledge of damage location and the disassembly of a system. This in situ healing method involves preferential blocking of a damaged site using chitosan agglomerates and subsequent cross-linking with glutaraldehyde to form a sturdy plug. Results of this proof-of-concept study suggest that a sample ultrafiltration membrane with severe physical damage could recover its nearly original performance in terms of water permeability (96%) and solute/particle rejection (87-100%) by the healing process.

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Toward in Situ Healing of Compromised Polymeric Membranes

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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