Moringa oleifera’s seeds purify water

Moringa oleifera’s seeds purify water

1:44 AM, 20th January 2012
Moringa oleifera’s seeds purify water
New method to purify water.

OHIO, US: A natural substance obtained from seeds of the Moringa oleifera tree can purify and clarify water inexpensively and sustainably in the developing world, where more than 1 billion people lack access to clean drinking water. Research on the potential of a sustainable water-treatment process requiring only tree seeds and sand appears in ACS’ journal Langmuir.

Stephanie B Velegol, Scientist, Penn State University College of Engineering and colleagues explained that removing the disease-causing microbes and sediment from drinking water requires technology not always available in rural areas of developing countries. For an alternative approach, Velegol looked to Moringa oleifera, also called the ‘miracle tree,’ a plant grown in equatorial regions for food, traditional medicine and biofuel. Past research showed that a protein in Moringa seeds can clean water, but using the approach was too expensive and complicated. So Velegol’s team sought to develop a simpler and less expensive way to utilize the seeds’ power.

To do that, they added an extract of the seed containing the positively charged Moringa protein, which binds to sediment and kills microbes, to negatively charged sand. The resulting “functionalized,” or “f-sand,” proved effective in killing harmful E. coli bacteria and removing sediment from water samples. The results open the possibility that f-sand can provide a simple, locally sustainable process for producing storable drinking water.

© ASC News



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