Penza State University of Architecture and Construction
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List of articles written by the authors of the organization
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RECYCLING OF TIRES AND THEIR ELEMENTS
Description
In the world, recycling processes have recently become more common in order to save material and energy resources. Currently, in connection with the level of motorization, there grew a problem of recycling waste tires and their elements which is of great importance for many regions of the country. Decommissioning worn tires is a source of environmental pollution, bearing the prolonged character; they are not a subject to biological destruction and require constant increase of storage facilities. There is a continuous accumulation of used tires and we can recycle only about 20% of their amount. Worn tires represent very large-capacity products of polymer-containing waste, virtually resistant to natural degradation. Therefore, the problem of processing and secondary use, emerged from the operation of tires is of great economic and environmental significance. However, the worn tires are a source of valuable secondary raw materials: rubber, soot (essentially pure carbon), metal and synthetic cord. 90% of all waste of rubber are tires and represent a vast reserve of raw materials. In the emerging in the industry nonrenew- material resources the efficient use of secondary raw materials is of great importance. There are improved technologies for processing rubber goods, and the equipment used for it
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doc 317.836kb