Banana Peels Can Purify Polluted Drinking Water, Scientists Say
August 15, 2011 at 7:30 AM
by Katie Robbins
snip....
"Castro found that banana peels contain nitrogen, sulfur, and carboxylic acids,...
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WHO - Household Water Treatment and Safe Storage Following Emergencies and Disasters
Household Water Treatment and Safe Storage Following Emergencies and Disasters
http://www.cochrane.org/evidenceaid/...0treatment.pdf...