More than 1 billion tires are discarded around the world every year. Disposal of waste tires is a challenging task because tires have a long life and are non-biodegradable. The traditional method of tire waste management is stockpiling or illegally dumping or landfilling, all of which are short-term solution. Crumb rubber is a term used for recycled rubber from automotive and truck scrap tires. The two major technologies for producing crumb rubber are ambient mechanical grinding and cryogenic grinding. Of the two processes, cryogenic process is more expensive but it produces smoother and smaller crumbs. Ambient Mechanical Grinding In ambient … Continue reading →
Waste disposal is a serious concern these days, especially with the increasing public awareness of the need to protect the environment. Solid wastes like old tires present complicated disposal problems. Large, hollow, durable, and non-biodegradable, old tires can take up substantial space in landfills. Leaving tires to nature can also be problematic as mosquitoes and other pests may thrive on them. In the United States, an estimated 300 million scrap tires are produced every year. Around the world, the number jumps to about 2 billion. Fortunately, there are several ways to recycle scrap tires including conversion into biofuels. What is … Continue reading →
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