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Tire recycling, or rubber recycling, is the process of recycling waste tires that are no longer suitable for use on vehicles due to wear or irreparable damage. These tires are a challenging source of waste, due to the large volume produced, the durability of the tires, and the components in the tire that are ecologically problematic. [1]
Waste tires have also been known to be used in making track and field pavements, roads, and shooting targets. Recycled waste tires have several recreational uses. They are used for tire swings, flower pots, compost bins, retaining walls, and sandals in developing companies. They can also be used as fuel energy.
In 2017, 81.4% of scrapped tires were marketed for some beneficial use, down from 87.9% in 2015. Of the 3,411 thousand tons of marketed scrap tires, 50.8% were used as fuel, 29.6% as ground rubber. Of the tires used as fuel, 46% were consumed in cement kilns, 29% in pulp and paper mills and 25% in electric utility boilers. [25]
As of 2015, only 67 million tires remain in stockpiles. [48] From 1994 to 2010, the European Union increased the amount of tires recycled from 25% of annual discards to nearly 95%, with roughly half of the end-of-life tires used for energy, mostly in cement manufacturing. [49] [50] Pyrolysis and devulcanization could facilitate recycling.
Connecticut’s Department of Public Health conducted an extensive study and published three peer-reviewed studies on the safety of crumb rubber [6] and determined that there is “no scientific support for a finding of elevated cancer risk from inhalation or ingestion of chemicals derived from recycled tires used on artificial turf fields ...
The OEHHA has conducted additional studies on potential negative human health effects associated with the use of recycled waste tires in playground and synthetic turf products. [11] Although rubber mulch is generally regarded as safe, recycled tire rubber leachates do contain certain minerals and compounds which may be ecotoxic in high ...
In the United States in 2017, about 43% of scrap tires (1,736,340 tons or 106 million tires) were burnt as tire-derived fuel. Cement manufacturing was the largest user of TDF, at 46%, pulp and paper manufacturing used 29% and electric utilities used 25%.
This is an accepted version of this page This is the latest accepted revision, reviewed on 15 February 2025. Converting waste materials into new products This article is about recycling of waste materials. For recycling of waste energy, see Energy recycling. "Recycled" redirects here. For the album, see Recycled (Nektar album). The three chasing arrows of the universal recycling symbol ...