Potential evaluation and perspectives on using sponge-like superabsorbent cryogels for onsite water treatment in emergencies
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 thi...
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| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2015
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/106725 http://hdl.handle.net/10220/25105 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | 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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