Journal
DESALINATION AND WATER TREATMENT
Volume 53, Issue 6, Pages 1506-1515Publisher
DESALINATION PUBL
DOI: 10.1080/19443994.2014.943064
Keywords
Cryogels; Emergency; Potable water; Disaster-relief; Hydrogels; Disinfection
Categories
Funding
- Economic Development Board of Singapore
- National Research Foundation Singapore under its National Research Foundation (Environment and Water Technologies) PhD Scholarship
- European Membrane Society
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This paper reports and discusses the prospects of a novel approach for emergency water treatment using antibacterial PSA/Ag cryogels. The approach involves allowing the cryogel to swell in contaminated water after which the disinfected water can be recovered by a simple squeezing step. Employing this process allowed the cryogels to achieve enhanced disinfection compared to other Ag-modified materials. The cryogels could achieve more than two logs (99%) bacterial inactivation in natural water samples. The cryogels were robust and showed stable disinfection performance over 10 cycles indicating that they were highly reusable. These results indicate that the PSA/Ag cryogels offer excellent potential for applications requiring potable water production in response to emergencies or disasters.
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