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Oct 31, 2008

The United States abandoned the use of tires for a variety of media filter wastewater

Every year the United States will have millions of discarded tires, the tire was used as garbage disposal and become breeding grounds for pests. The use of discarded tires to find these methods has been a challenge, and eliminate illegal invasion has become a serious problem.

Pennsylvania State University environmental engineering associate professor Dr. YuefengXie recently found a use of scrap rubber waste water filtration methods, which can solve the waste tire recycling, while at the same time to clean up the environment. Xie said: "My research shows that those made from scrap tires at the end of the rubber can be used as a filter medium. Filter them to a variety of waste water." By the end of the waste rubber tires and cutting to be crushed by They will be made of the right size, remove the metal particles can be applied. At present, rubber tablets for highway and laying plastic athletics track, golf course, fertilizers, industrial products and other fields.  

Traditional wastewater filters use sand is the main method or medium, such as activated carbon. These methods of the main problem is that these particles back, the deposition rate of particles smaller than fast. Scientists said that this will lead to the upper filter media of small particles, and the largest low-rise, so will soon be top of the plug.

Xie in the study, he found that rubber particle is not a rigid material that can easily shrink, so good this way to remove the upper particles to solve the problem plug. Moreover, compared with the sand grain of rubber or the cost of activated carbon are also lower because of its high-efficiency filters and low weight. Xie said that they also expected to be used in some of the accidents to deal with disaster

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