Used tires are
classified as complex types of industrial wastes. They do not cause direct harm
to human health, but very resistant to various influences. Their self expansion
practically does not occur, but the question of cost-effective treatment has
not yet been resolved, and this material accumulates in large quantities,
taking more and more areas of landfills. In this case, as practice shows, such
landfills pose as already a very real danger to humans. Emerged fire to such a
landfill could create a huge cloud of toxic pollution, besides it is virtually
impossible to extinguish, and it can last for years. Area landfills in practice
become hotbeds of reproduction and development of different insects - carriers
of disease, the very use of land for the landfill costs money and causes damage
to the environment.
To solve this problem, the German authorities allocate grants for enterprises engaged in processing of used tires. Similar arrangements are applied in other countries in Western and Eastern Europe. In USA, the allocation of subsidies depends on the regional authorities, applying the method of obtaining funds for subsidies by imposing various obligations and guidelines for users and producers (distributors) tires. Despite all the measures, the problem of used tires is quite acute in the world, confirming that it is still not found enough profitable technology for processing of tires.
The most promising method for the disposal of tires is their mechanical grinding. The end product of such processing is a rubber powder or grit. There was worked out a set of techniques of rubber shredding, but as a rule, they are energy-intensive and capital-intensive, which leads to high costs of rubber powder. Processing techniques, using pre-cooling or additional chemical exposure does not significantly reduce the cost, but this gives the final product of low quality, making it unsuitable for many practical applications.
To solve this problem, the German authorities allocate grants for enterprises engaged in processing of used tires. Similar arrangements are applied in other countries in Western and Eastern Europe. In USA, the allocation of subsidies depends on the regional authorities, applying the method of obtaining funds for subsidies by imposing various obligations and guidelines for users and producers (distributors) tires. Despite all the measures, the problem of used tires is quite acute in the world, confirming that it is still not found enough profitable technology for processing of tires.
The most promising method for the disposal of tires is their mechanical grinding. The end product of such processing is a rubber powder or grit. There was worked out a set of techniques of rubber shredding, but as a rule, they are energy-intensive and capital-intensive, which leads to high costs of rubber powder. Processing techniques, using pre-cooling or additional chemical exposure does not significantly reduce the cost, but this gives the final product of low quality, making it unsuitable for many practical applications.
