The plant commonly known as the drumstick tree is cultivated for food and natural oils, and the seeds are already used for a type of rudimentary water purification. Researchers from Carnegie Mellon University in the US used sand and plant materials to create a cheap and effective water filtration medium, termed "f-sand."from Environment News, Earth News, Global Warming, Wild Life, Carbon Trading, Climate Business, Climate Change & Pollution News https://ift.tt/2le9IzK
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