Scientists have figured out that infusing coffee and foam together, it can take out harmful lead and mercury from it. This is made from spent coffee powder in a bioelastomeric foam. This mixture of the two items can remove up to 99 percent of the harmful lead and mercury in a 30 hour period in still still water. But in moving water it can remove up to almost 70 percent.
This to me can be very useful to areas that are not as developed as first world countries. With a bit more innovation and modification, this can help prevent lead and mercury poisoning. The coffee foam can definitely be modified to probably take out up to 99 percent of the lead in water down the line, given more research. https://www.sciencedaily.com/releases/2016/09/160921095417.htm
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December 2016
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