Science & Technology
June 30, 2011 ·
7 comments
Image Credit: Jorge Barrios
Source: BBC News | Comments (7)
'Super sand' to help clean up dirty water
By T.K. RandallJune 30, 2011 ·
7 comments
Image Credit: Jorge Barrios
Contaminated water can be cleaned effectively using a novel, cheap material, say researchers.
Scientists have rediscovered an ancient method of purifying water for millions living in under-developed countries worldwide. Although sand can be a slow and tedius method of filtration, new advances mean that cleaner drinking water could be available faster and in a more cost efficient manner than ever before.Dubbed "super sand", it could become a low-cost way to purify water in the developing world. The technology involves coating grains of sand in an oxide of a widely available material called graphite - commonly used as lead in pencils. The team describes the work in the American Chemical Society journal Applied Materials and Interfaces.
Source: BBC News | Comments (7)
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