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 | |
| Publication status | Published - 2013 Oct 7 |
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All Science Journal Classification (ASJC) codes
- Ecology
- Environmental Chemistry
- Health, Toxicology and Mutagenesis
- Pollution
- Waste Management and Disposal
- Water Science and Technology
Cite this
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Toward in Situ Healing of Compromised Polymeric Membranes. / Zaribaf, Behnaz H.; Lee, Seung Jin; Kim, Jae Hyuk; Park, Pyungkyu; Kim, Jae Hong.
In: Environmental Science and Technology Letters, Vol. 1, No. 1, 07.10.2013, p. 113-116.Research output: Contribution to journal › Article
TY - JOUR
T1 - Toward in Situ Healing of Compromised Polymeric Membranes
AU - Zaribaf, Behnaz H.
AU - Lee, Seung Jin
AU - Kim, Jae Hyuk
AU - Park, Pyungkyu
AU - Kim, Jae Hong
PY - 2013/10/7
Y1 - 2013/10/7
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=84969262133&partnerID=8YFLogxK
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U2 - 10.1021/ez4000548
DO - 10.1021/ez4000548
M3 - Article
VL - 1
SP - 113
EP - 116
JO - Environmental Science and Technology Letters
JF - Environmental Science and Technology Letters
SN - 2328-8930
IS - 1
ER -