As industrialisation proceeds, the number of used rubber will be increasing. A number of environmental problems will be caused if people dispose the waste tyres with burning.
Completely Combusting waste tyres, which carbon dioxide will be produced aggravates greenhouse effects, water vapour and inert residues that may contain sulphur dioxide. If waste tires are combusted incompletely, dioxins and noxious gases will be released . Furthermore, the following substances: volatile organic compounds and hazardous air pollutants such as polynuclear aromatic hydrocarbons (PAHs), dioxins, furans, hydrogen chloride, benzene, polychlorinated biphenyls (PCBs), arsenic, cadmium, nickel, mercury, zinc, chromium and vanadium are released into the atmosphere.
Tyre combusted will cause pyrolysis of the rubber and result in oily decomposition waste. If discharge the oily into nearby streams, ditches and waterways can leach into the ground water.
Residues that remain on the soil after burning the waste tyres can have an impact on the environment in two ways: Immediately pollute the soil because of decomposing liquid products to penetrate the soil. Gradual pollution caused by leaching of ash and unburned residues.
Using rubber recycling machine to refine waste raw materials, not only our environment can be protected, but energy of our earth can also be renewed, especially oil. Now, let''s see the oil yield of different raw material together.
Approx oil yield of different raw materials is as follows:
|Leftovers of paper||Wet 15-20%,dry 60%|