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Water Could be Cleaned Inexpensively Via Natural Substance from Miracle Tree

by Kathy Jones on January 22, 2012 at 11:09 AM
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 Water Could be Cleaned Inexpensively Via Natural Substance from Miracle Tree

A natural substance obtained from seeds of the "miracle tree" could purify and clarify water inexpensively and sustainably in the developing world, scientists say.

Stephanie B. Velegol and colleagues said that removing the disease-causing microbes and sediment from drinking water requires technology not always available in rural areas of developing countries.

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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.
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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 "functionalised" 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," the researchers said.

The study has been published in ACS' journal Langmuir.

Source: ANI
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