Pass the Nuts

Cashew shells can be used to mop up heavy metals. Nature India reports that researchers have developed an absorbent material from chemically modified cashew nut shells, an agricultural waste product, which is able to remove harmful heavy metals such as copper, cadmium, nickel, and zinc from aqueous solutions. This kind of sustainable solution for cleaning up industrial waste deserves cheers from the peanut gallery.


2 thoughts on “Pass the Nuts

  1. Interesting…I know this is a bit off topic, but I realized that cashews are probably the one nut I’ve never actually seen in its shell. I’ve shelled almonds, walnuts, pecans, peanuts, pistachios, Brazil nuts, and I think even hazelnuts–but never a cashew. It makes me wonder why they always shell them before they go to market.

  2. Pingback: Onions and garlic soak up heavy metals | Secret Science Geek - Laura Kaiser

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