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  1. This Indian plant seed could bring clean water to millions!

This Indian plant seed could bring clean water to millions!

Proteins from the Moringa oleifera plant - a tree native to India - can help effectively purify water in developing nations at a low cost, say scientists.

By: | Washington | Published: June 18, 2018 11:03 AM
seed, plant seed, water, water purification, Moringa oleifera, drumstick tree 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. (Google Image)

Proteins from the Moringa oleifera plant – a tree native to India – can help effectively purify water in developing nations at a low cost, say scientists. 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.

However, this traditional means of purification leaves behind high amounts of dissolved organic carbon (DOC) from the seeds, allowing bacteria to regrow after just 24 hours. This leaves only a short window in which the water is drinkable. 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.”

F-sand was created by extracting the seed proteins from the Moringa oleifera plant, and adhering them to the surface of silica particles, the principal component of sand. It kills microorganisms and reduces turbidity, adhering to particulate and organic matter. These undesirable contaminants and DOC can then be washed out, leaving the water clean for longer, and the f-sand ready for reuse.

According to the United Nations, 2.1 billion people lack access to safely managed drinking water services, the majority of whom live in developing nations. The Moringa oleifera plant tree is native to India and grows well in tropical and subtropical climates.

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