A water filter sand

A water purification equipment for household use. Photo: highspeakswater.com.

Yuefeng Xie, environmental engineering at Penn State University (USA) and his colleagues have built water purification equipment using rubber fragments taken from the damaged tire.

The most important part of the water purification system is currently popular or more cylinders a sandbox (or anthracite) have upright. Cat in the tube is arranged so that the larger particles located above, while the smaller particles located below. The bigger particles, the greater the gap between them and vice versa. Thanks to the arrangement that the toxins and dirt trapped when water, for a certain reason, bounced back.

The problem with these systems, according Yuefeng Xie, is that the gaps between the particles are slurry seal within a few days. When going through the sand column, the water will push the large nut downward. And when water is pushed back, the entire column will be disturbed sand.

"Such systems are designed to survive the next 20 years. But just water is pushed back once they become useless," Xie said.

Water filtration system at a factory in the US.  Brother:

Water filtration system at a factory in the US.
Photo: highspeakswater.com.

Xie and his colleagues believe that replacing the sand or anthracite with tiny pieces of rubber, the width size 1 to 2 mm, they can create an ideal water purification equipment because they have very good compression. Therefore, whether classified how, the rubber piece at the bottom are always the smallest piece because the weight of the column pressed them down.

Xie claimed that rubber filter equipment operation 4 times faster than the current water purification products.

Xie's discovery is very exciting, Sean Moran, Executive Director Environmental Expertise Company Limited in the UK, commented. However, he said that Xie should note several points: First, the mud tends to "Five Reasons" in the filtration equipment. Moran thought than sand, mud rubber adhesion more vulnerable. Second, the rubber pieces taken from old tires can release toxic chemicals into the water, such as heavy metals.