The old rumor that you can get high smoking them turned out to be a myth, but scientists are now studying banana peels more closely after they found that finely chopped banana peels worked better than several traditional materials at removing heavy metals from wastewater.
American Chemistry Society (ACS) researchers determined that a filtration device, designed to use banana peels as its primary filter medium, could be used 11 times without diminished filtration results. This is significant because, compared to other materials, banana peels would be lower in cost since they don’t have to be manufactured, and they don’t require any chemical preparation to be effective.
Among the metals researchers have found the banana peels can remove include lead and copper, which can find their way into water via mining activity, agricultural runoff, and industrial waste.
Anything that can improve current wastewater heavy metals removal would be welcomed, especially since even in current heavy metal removal, some of the substances used in the removal are toxic in themselves.
And we thought that banana peels were only good for Buster Keaton gags.
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