Purify your glass of water by slipping a banana peel into it: "Banana peels, useful in polishing silverware and leather shoes, may have another surprising use —as a water purifier.
Gustavo Castro and colleagues said that minced banana peels performed better than a number of other purification materials in removing potentially toxic metal contamination from water.
Mining processes, runoff from farms and industrial wastes can all put health and environment harming heavy metals such as lead and copper into waterways."
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