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Charcoal filter / Activated carbon
Revision as of 01:12, 15 May 2012 by
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Revision as of 01:12, 15 May 2012 by
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The Unicef upflow charcoal filter.
Photo: WHO.
Acknowledgements
Emergency treatment of drinking water at point-of-use.
WHO.
Last edited on 12 January 2020, at 20:34
