How to burn tires without smoke


Tire Incineration | Energy Justice Network

TOPICS WITHIN THIS PAGE
Background Introduction
Problems with Test Data
Tire Incineration in Paper Mills
What we don't know can hurt us
Toxic Pollution from TDF Burning
Footnotes

OTHER PAGES ON THIS SITE:
Alternatives to Tire Burning
List of tire burning facilities
Groups opposed to tire incineration
Resources and links


See our Powerpoints on tire incineration.



As of 2003, about 290 million tires are discarded in the U.S. every year (roughly one per person). Nearly 45% of these scrap tires (130 million) are used as "Tire Derived Fuel" (TDF), which often involves burning the (usually shredded) tires alongside conventional fuels like coal (usually no more than 10-25% TDF is used when co-firing with coal). At the end of 2003, 89 U.S. facilities burned TDF on a regular basis, about half of which (43) are cement kilns with the rest being pulp/paper mills (17), coal-fired power plants (13), and other industrial boilers or waste incinerators (15). No dedicated tire incinerators are still operating in the U.S., but there used to be ones operated in Sterling, CT (Exeter Energy), in Westley, CA (closed after a major fire), Henry County, VA, and Ford Heights, IL. Others were proposed, such as ones in Preston, MN (stopped in 2005), the world's largest (800 ton/day) plant that as planned for Erie City, then Crawford County, PA (stopped with our help in 2010 and again a few years later), and also a huge tire gasification/pyrolysis plant planned by Koach Energy for the City of Chester, PA which we stopped in 2008. The number of facilities burning TDF is increasing, though. More cement kilns are beginning to use TDF and electric arc furnaces (EAFs) are starting to burn tires.1

Tire manufacturers, Tire Derived Fuel producers (tire shredders) and TDF users (burners) and

government agencies promote burning TDF as a solution to the dire problem of waste tires. What they fail to mention in their promotional materials is that tire incineration under any circumstance creates pollution that makes the air dangerous to breathe.

It is common knowledge that burning tires in the open is extremely harmful to human health and the natural environment. The fumes emitted are packed with the many toxic chemicals that tires contain (including volatile organic compounds such as benzene, metals such as lead, polycyclic aromatic hydrocarbons such as benzo(a)pyrene, and synthetic rubber components such as butadiene and styrene). Additionally, the chlorine content in tires leads to the creation of dioxins and furans (which are extremely toxic chemicals) when tires are burned.

Yet, users of Tire Derived Fuel are confident that their machinery (which usually is not even designed for burning tires) and the combination of tires with traditional fuels (like coal) will render the incineration process harmless. According to the Auburndale Recycling Center, Inc, a Wisconsin-based for-profit corporation that sells tire chips for incineration, "Most individuals are confused about the difference between a "burning tire" which emits black smoke and damages the environment, and the use of scrap tires as a fuel source for power companies. "

Citing government approval of Tire Derived Fuels, Auburndale ignores the scathing critiques that reputable scientists like Dr. Neil Carman and Dr. Seymour I. Schwartz have written in response to the "junk science" and stacked statistics behind the rubber-stamp approval of tire derived fuel. These experts, along with other scientists, ecologists, and public interest groups, have uncovered the truth behind the propaganda -- that tire incineration by any method is NOT safe.

Problems with Test Data

Supporters of Tire Derived Fuel claim that substituting 10-25% TDF for coal or natural gas in incinerators/boilers does not significantly alter the chemical content of the emissions. To justify their claims, TDF advocates point to government studies like the Environmental Protection Agency's 1997 report "Air Emissions from Scrap Tire Combustion" 2, which states that:

"Based on the results of the [EPA rotary kiln incinerator simulator] test program, it can be concluded that, with the exception of zinc emissions, potential emissions from TDF are not expected to be very much different than from other conventional fossil fuels, as long as combustion occurs in a well-designed, well-operated and well-maintained combustion device. " (Italics ours.)

However, there are many problems with this. First of all, the test data is not an accurate measure of the actual day-to-day emissions of a given plant. As reported by Greenpeace, "Trial burns are generally considered a poor indicator of operation on a daily basis: during trial burns when regulatory authorization is at stake and government officials are at the site, variables such as wastefeed, temperature, oxygen flow, and pollution control device efficiency are carefully maintained to optimize performance. On a day-to-day basis, emissions may be considerably higher." 3 Dr. Neil Carman confirms this:

"But during stack tests of TDF, cement kilns will do several things to make emissions and combustion look good-to-decent for such facilities:

  • run at higher excess air to improve combustion efficiency
  • control kiln parameters more precisely
  • prevent kiln solid ring formation and buildup that creates havoc for good combustion of any fuels
  • burn lower TDF levels during stack tests than they may be seeking to burn operationally
  • operate and maintain their ESPs or baghouses in top condition to keep particulate emissions to a reduced level, and
  • miscellaneous tricks. " 4

Apart from this it should be kept in mind that facilities naturally wear down with use. It is unlikely that any incinerator could continuously operate for a long period of time at the same level of performance as it did during the initial testing period.

Another disturbing aspect of tire incineration, particularly in cement kilns, is the occurrence of serious "upsets." As Dr. Carman explains,

"Cement kilns certainly do have combustion upsets and smoke may be emitted during such events. Cement kilns are not designed or required to have major fail-safe combustion devices such as large afterburners that all state-of-the-art incinerators must have by federal law today (all medical, municipal, and hazardous waste incinerators can not operate without their afterburner or secondary combustion chambers in normal operation). The afterburner is required because of the potential for flame outs and total combustion failure in the primary burn chamber, which is all that cement kilns possess. Cement kilns have no fail safe combustion devices which is unthinkable today in all incinerators...Cement kilns are subject to a variety of problems, including a type of meltdown of the kiln when the ID fans lose power or fail to operate, without adequate air flow to control kiln temperatures at or below 3,000 degrees F, the kiln temperature may skyrocket quickly to 4,000 degrees F and the kiln is so hot that the steel shell sags toward the ground effectively destroying the kiln. Kiln meltdowns are not rare events and have happened here in Texas at several plants in the last ten years. Cement companies do not like to talk about this problem." 4

Aside from all of this, it should be noted that a number of tests conducted by or on behalf of the Tire Derived Fuel industry and its supporters have been notoriously shoddy in terms of scientific method, vision, language, and conclusions. As mentioned earlier, such reports have been repeatedly blasted by a number of reputable scientists and organizations. These experts raise very serious concerns and cast a shadow of doubt over much of the "official science" behind tire incineration.

Tire Incineration in Paper Mills

The aforementioned EPA test was not even performed on an actual operating plant but rather on a scaled-down simulator. Such devices are obviously bound to be more stable than large industrial incinerators that are used on a daily basis over a period of years. Importantly, the EPA simulator isn't even designed to represent the type of incinerators typically used in paper mills, which often use Tire Derived Fuel.

Tire incineration in paper mills poses special concerns. The North Carolina Division of Pollution Prevention and Environmental Assistance, a government agency that is generally uncritical of tire incineration as a whole, still has this to say about tire incineration in paper mills:

"[Paper mill] boiler sizes are smaller, and operating temperatures are lower. Thus, complete burning of TDF particles in this kind of boiler is much more difficult.
Data have indicated that using TDF appears to deteriorate the emission quality. Particulates in the emissions are increased with a corresponding increase of TDF usage. Other criteria pollutants also increased in most cases... The emission control problem is the greatest single concern for burning TDF at pulp and paper mills." 5

What we don't know

can hurt us.

Another major concern about Tire Derived Fuel is the enormous lack of knowledge about a wide range of potential dangers. This has been painfully apparent even in the pro-TDF reports. What follows is a selection of quotes from the California Air Pollution Control Officers Association (CAPCOA) report. The quotes were originally isolated for analysis by Dr. Seymour I. Schwartz, a professor of environmental science and policy at University of California at Davis.

  • "Effects of exposure to more than one carcinogen or toxicant are also not quantified in the risk assessment [on tire burning in CAPCOA's report]. Many examples of additivity or synergism (effects greater than additive) are known" (CAPCOA, 1993; p. I-3).
  • "Additionally, there may be chemicals which pose health risks but are not considered in a given risk assessment for a number of reasons, including lack of information on toxicity" (CAPCOA, 1993; p. I-3).
  • "The estimates of cancer potency in humans contain many sources of uncertainty. . . . Differences in these factors . . . cannot be easily quantified and incorporated into risk assessment . . . . Other uncertainties arise in the assumptions underlying the dose-response model used." (CAPCOA, 1993; p. I-4).

In his letter to the California Integrated Waste Management Board, Dr. Schwartz also notes that "Virtually nothing is known about the dose-response functions for important categories of health effects, particularly disruptions to the hormone systems of humans, which could produce life long damage in developing infants. Also, virtually nothing is known about the health effects caused by combinations of toxic chemicals that are emitted when burning tires. Without such scientific knowledge, and because some toxic pollutants increase from burning tires, there is no scientific basis for the Board to conclude that burning waste tires in cement kilns is safe." 6

Toxic Pollution from Burning Tire Derived Fuel

So far we have looked at the disturbing unreliability of the existing pro-TDF studies, the special problems posed by burning tires in paper mill boilers, and the alarming lack of knowledge about a wide range of potential dangers that tire incineration may pose to the health and safety of our communities and the environment. This next section will take a closer look at the existing record and find that even based on the limited knowledge that exists, it is already clearly evident that tire incineration is dangerous.

Below is a breakdown of some of the condemning test data, organized by chemical groupings:

Dioxins and Furans

Dioxins are highly toxic and cause serious health problems, including infertility, learning disabilities, endometriosis, sexual reproductive disorders, birth defects, damage to the immune system and cancer. Dioxin is fat-soluble and once it's released into the outside environment, it readily climbs up the food chain, causing average meat and dairy-product consumers to get over 95% of their dioxin exposure through their diet.7 In fact, according to the World Health Organization, the most toxic forms of dioxin are considered to be the most carcinogenic (cancer causing) substances known to science.8 Even a very tiny quantity of dioxins can be dangerous. According to an EPA's Dioxin Reassessment, exposure to dioxins, even at minute levels, poses cancer risks and health concerns wider than previously suspected.9 Deceptively small dioxin emission rates (for example, 0.0236 grams/year for the now-closed tire incinerator in Modesto, California) conceal the harmfulness of these deadly chemicals. Based on the EPA's "risk specific dose" criteria, 0.0236 grams/year is the equivalent of a lifetime maximum acceptable dose for over two million people. 3

Dioxins and furans are chemicals that are created by burning chlorine (or other halogens, like fluorine or bromine) in the presence of hydrocarbons and oxygen. Hydrocarbons (the bulk of the TDF itself, as well as coal, wood or gas it's co-fired with) and oxygen (from the air) are readily available when TDF is incinerated. Dioxins and furans are produced by tire incineration because tires contain chlorine. The manufacture of synthetic rubber for tires uses up to 25% aromatic extender oils, a toxic waste product of oil refining which can contain chlorine. Another possible source of chlorine in tires is through the use of the "salt-bath" vulcanization process, a process where the rubber is made more elastic.10 One major source of chlorine in tires is their halogenated butyl rubber liners. The addition of chlorine or bromine (the latter used more widely for truck tires) to the butyl rubber gives liners the air-impermeability required to maintain proper tire inflation. 11 A content comparison by the state of California indicates that tires may contain as much as two to five times the chlorine level of western coal, with an average of 0.04 weight percent for western coal, and a range of 0.07 to 0.2 weight percent for tires.12. The largest proponents of TDF burning (the Rubber Manufacturers Association) confirmed this on their own website, when they listed the chlorine content of tires as being 0.149 - 0.150 % by weight.13 An extensive EPA survey of the chemical composition of fuels burned in coal plants found chlorine levels in tires to be 2% higher (1,064 ppm average from 149 samples) than the national average for bituminous coal (1,043 ppm average from 27,352 samples) -- the most widely used type of coal, which also has the highest average concentration of chlorine of any coal type. Since chlorine levels in coal vary throughout the nation, it's possible that the chlorine content of tires could be far higher or lower than coal burned at any specific facility. 14

Certain metals present in tires (such as copper, iron, manganese, nickel, sodium and zinc)10 serve as catalysts for dioxin formation, providing a surface on which dioxins can readily form during and after the combustion process.15 The greater chlorine content of tires combined with the presence of these metal catalysts is the likely reason why burning tires with coal has been found to produce more dioxin pollution than burning only coal. Increased dioxin emissions have been found in most of the tests conducted where dioxin emissions at facilities burning 100% coal were compared to those co-firing 4-30% TDF.

Data From
TDF Content
(% TDF compared
to 100% coal)
Dioxins/Furans
4 California Cement Kilns6,16-22 Increased between 53% and 100%
5 Canadian Cement Kilns23   Increased 37% and 247% in two tests
Decreased 54% and 55% in two other tests
Victorville, CA Cement Kiln24 24. 6% Dioxins increased 139-184%

Furans increased 129%

Cupertino, CA Cement Kiln26   Increased 30%
Davenport, CA Cement Kiln24,27 30% Dioxins increased 398% and 1,425% in two tests

Furans increased 58% and 2,230% in two tests

Davenport, CA Cement Kiln28 20% Increased 25%
Lucerne Valley, CA Cement Kiln29 20% Dioxins and some dibenzofurans increased
Chester, PA Paper Mill30 4-8% Increased 4,140%
U Iowa, Iowa City, IA Industrial Boiler2 4% Decreased 44%
U Iowa, Iowa City, IA Industrial Boiler2 8% Decreased 83%

Other Chorine-Based Pollutants

In addition to dioxins and furans, a number of other harmful chemicals are emitted from incineration of chlorine-based substances in tires. 3,25,26,28

Among the halocarbons emitted during tests at TDF incinerators are PCBs, dichlorobenzene, trichlorobenzene, tetrachlorobenzene, hexachlorobenzene, chlorophenol, and dichlorophenol, which are all highly toxic compounds and are all either proven or suspected to be carcinogenic.31

Non-Chlorinated Hydrocarbon Pollutants

Tires also contain petrochemical feedstocks, including butadiene and styrene (the latter being a benzene derivative). The chemicals are both carcinogens. Other carcinogenic benzene derivatives, such as M, P and O-Xylenes are sometimes found in tire derived fuel as well.4

Polycyclic Aromatic Hydrocarbons (also known as Polynuclear Aromatic Hydrocarbons) is a name applied to over 100 chemicals containing multiple benzene rings that are difficult to break down. PAHs are known to cause cancer in rats and "may reasonably be expected to be carcinogens" in humans as well, according to the Department of Health and Human Services. 4,32 Approximately 25% of tire contents are PAHs.4 Tire incineration tests have shown increases (compared to only burning coal) in PAHs of between 88% and 23,938% (most are in the several hundreds or thousands), although one test found a decrease of 68%.6,16,17,25,26,28

Heavy Metals

Tires contain around 20 different metals, none of which can be destroyed by burning them, since they're elements. Metals known to be in tires include aluminum, antimony, arsenic, barium, beryllium, cadmium, chromium, cobalt, copper, iron, lead, magnesium, manganese, mercury, nickel, selenium, silicon, tin, titanium and zinc.2,13,33,34 Zinc is present in particularly high amounts, since zinc oxide is used in the vucanization process. Most of them, including arsenic, lead, mercury, and chromium VI, are quite toxic to humans and can also wreak ecological havoc on aquatic wildlife if even a small quantity finds its way into a body of water. Some metals, like mercury, can accumulate in wildlife. A 2002 test of emissions from a Colorado cement kiln burning TDF with coal found an 8% increase in mercury when TDF was used, leading to nearly 5 pounds of additional mercury pollution per year -- enough to contaminate about 2,000 twenty-acre lakes to the point where the fish cannot be eaten due to methylmercury bioaccumulation.

The test data for metal emissions varies widely for each metal, but the overall trend shows increases in most metals when TDF is burned along with coal.2,3,16,16,17,25,26,28

This evidence clearly demonstrates that tire incineration releases a variety of toxic pollutants into the air, posing a dangerous and potentially deadly threat to human health and the environment.


Alternatives to Tire Incineration


Footnotes:
  1. "U.S. Scrap Tire Markets 2005," Rubber Manufacturers Association, Nov 2006.

    (796 KB PDF file) [Local copy]

  2. Joel I. Reisman, Paul M. Lemieux, "Air Emissions from Scrap Tire Combustion." Environmental Protection Agency, Oct. 1997.

    www.epa.gov/ttncatc1/dir1/tire_eng.pdf (PDF file) [Local copy]

  3. Greenpeace, "Tire incineration and Toxic Emissions: New data from the Modesto Incinerator, Westley, CA."

    www.energyjustice.net/tires/files/greenpeaceletter.html

  4. Dr. Neil Carman, "Hazards of Burning Tires." June 1997.

    www.portaec.net/local/tireburning/hazards_of_burning_tires.html

  5. North Carolina Division of Pollution Prevention and Environmental Assistance, "Tire-Derived Fuel."

    www.p2pays.org/ref/11/10504/html/usa/emission.htm [Local copy]

  6. Dr. Seymour I. Schwartz. Letter to California Integrated Waste Management Board. January 21, 1998.

    www.portaec.net/local/tireburning/dr_schwartz.html [Local copy]

  7. Dioxin Homepage.

    www.ejnet.org/dioxin/

  8. IARC Monographs Programme on the Evaluation of Carcinogenic Risks to Humans

    www-cie. iarc.fr/htdocs/monographs/vol69/dioxin.html

  9. Draft Exposure and Human Health Reassessment of 2,3,7,8-Tetrachlorodibenzo-p-Dioxin (TCDD) and Related Compounds, Part III, USEPA, Office of Research and Development, EPA/600/P-00/001Bg, SAB Review Draft, September 2000.

    cfpub.epa.gov/ncea/cfm/part3.cfm

  10. "OECD Emission Scenario Document -- Additives in the Rubber Industry," Federal Environmental Agency, Berlin, Germany, March 3, 2003.

    (1.2 MB PDF file) [Local copy]

  11. "Subject: Rubber Compound ... Polymers," Toyo Tire Talk

    [Local copy]

  12. "Tires as a Fuel Supplement: Feasibility Study," California Integrated Waste Management Board, Sacramento, CA, January 1992.

    www.ciwmb.ca.gov/Publications/default.asp?pubid=90

  13. "Scrap Tire Characteristics," Scrap Tire Management Council website, archived Oct 10, 2000. Chlorine content is listed as 0.15% of tires by weight. This is described as a "Representative Analysis of TDF" produced by Waste Recovery, Inc. in 1986.

    Archive of www.rma.org/scrapchn.html (Once it was brought to RMA's attention that chlorine content of tires was available on their own website, they removed the chemical composition of tires from their current page on Scrap Tire Characteristics)

  14. U.S. Environmental Protection Agency 1999 Information Collection Request (ICR) Coal Analysis Results

    www.epa.gov/ttn/atw/combust/utiltox/utoxpg.html#TECR

  15. "Metals as Catalysts for Dioxin Formation," Dioxin Homepage.

    www.ejnet.org/dioxin/catalysts.html

  16. "Markets For Tires As Fuel," St. Vrain Valley Community Watchdogs

    www.geocities.com/watchdogs_99/ca_research.html [Local copy]

  17. "Attachment A: Environmental and Health Consequences from Using Tires as Fuel; Health Risk Assessment," Schwartz, Carmen, et. al., from report to CIWMB, Domestic Markets for California’s Used and Waste Tires.

    www.energyjustice.net/tires/files/attacha-health-risk.pdf

  18. California Integrated Waste Management Board, (CIWMB). Tires as a Fuel Supplement: Feasibility Study. Sacramento, CA, (1992).
  19. California Portland Cement Company. Modify Pyroprocessor: Add Whole Tire Handling System and Allow Use of Whole Tires as Supplementary Fuel to Kiln. Application to Kern County Air Pollution Control District, (March 28, 1995).
  20. Carnot Technical Services, Inc., and Radian International, LLC, Tustin, CA. Kaiser Cement Corporation TDF Demonstration Program. Volume I, Executive Summary, (April, 1996), pp. 1–15.
  21. RMC Lonestar Cement. Preliminary Evaluation and Proposal to Conduct Testing on the Use of Whole Tires as a Supplementary Fuel in the Cement Manufacturing Process. Davenport, CA, (May 1, 1992), pp. 6, 29.
  22. Bateman, Brian. Bay Area Air Quality Management District. Personal communication with S. I. Schwartz, June 14, 1996.
  23. "Proctor and Redfern, Ltd. A Review of Emissions Performance of Cement Kilns Using Tire-Derived Fuel. Don Mills, Ontario, Canada, (July, 1995), pp. 5, 16–23. " Test of 5 Canadian Cement Kilns. Cited in Notes 16 and 17.
  24. "Estimates of Organic Emissions TDF for RMC Lonestar and Southwestern cement kilns burning tires as fuel." Cited in Note 25.
  25. "Proposed Permit No. 1003026(J) to Burn Tire Derived Fuel California Portland Cement Company," Letter from Neil J. Carman, Ph.D. to Citizens for a Better Environment, San Francisco, CA, November 1995.

    www.energyjustice.net/tires/files/carman-cal-portland.pdf

  26. "Comments on Hazards related to Tire-Derived Fuel use in Cement Kilns," Letter from Neil J. Carman, Ph.D. to California Integrated Waste Management Board, Sacremento, CA, October 1997.

    www.energyjustice.net/tires/files/carman1997ciwmb.pdf

  27. "Preliminary Evaluation of RMC Lonestar Davenport Cement Plant: Proposal to Conduct Testing on the Use of Whole Rubber Tires as a Supplementary Fuel in the Cement Mfg Process," May 1, 1992. Cited in Notes 25 and 26.
  28. "Attachment B: Examination of the Board’s Claim of 'No appreciable difference in toxic emissions'," Schwartz, Carmen, et. al., from report to CIWMB, Domestic Markets for California’s Used and Waste Tires.

    www.energyjustice.net/tires/files/attachb-toxic-emissions.pdf

  29. "Report of Air Pollution Source Testing of a Cement Plant Rotary Kiln Fired on Rubber Tires and Coal at Mitsubishi Cement Company, Lucerne Valley, California." Cited in Note 25.
  30. "Kimberly-Clark Corporation Chester Mill Tire-Derived Fuel Trial Emission Test Results." Tests conducted in 1999.
  31. International Agency for Research on Cancer (IARC) Monographs on the Evaluation of Carcinogenic Risks to Humans and their Supplements. See Volumes 18, 41, 73 and 79.

    www-cie.iarc.fr/monoeval/allmonos.html

  32. EnviroTools Factsheet: Polycyclic Aromatic Hydrocarbons (PAHs) www.envirotools.org/factsheets/fs_pahs.shtml [Local copy]
  33. "Emission Control," North Carolina Division of Pollution Prevention and Environmental Assistance.

    www.p2pays.org/ref/11/10504/html/usa/emission.htm [Local copy]

  34. "Tire Derived Fuel Characteristics," North Carolina Division of Pollution Prevention and Environmental Assistance.

    www.p2pays.org/ref/11/10504/html/usa/tdfdata.htm [Local copy]

A New Source of Green Energy: Burning Tires?

Reuse and recycle. It’s a message that’s been hammered home; unfortunately, it isn’t always feasible. The automobile tire is the perfect example. Even hybrid cars need four of them apiece, and the global love affair with the automobile isn’t ending anytime soon. Worldwide, about a billion tires are sold annually, and eventually all get tossed. In the United States alone, we throw away 300 million tires a year—one for every man, woman, and child. These castoffs are a huge source of automotive-related pollution—the average used tire weighs 22.5 pounds and contains about two gallons of fuel, as well as other combustible carbon compounds. Dumped into huge stockpiles, tires harbor vermin, contribute to the spread of disease by creating mosquito breeding grounds, and feed huge fires: In August 1998, a grass fire ignited 7 million tires near the town of Tracy in California’s San Joaquin Valley, sending a plume of soot and noxious gas thousands of feet into the air. State authorities originally expected the fire to burn for about two weeks, but it endured for two and a half years. Cleanup was completed only in 2006, at a cost of $19 million.

Tires are so difficult to dispose of because they don’t easily become anything else. Up to now, any effort to recover the raw materials used to make tires has failed beause more fuel is needed to decompose the tire than is used in making a new one.

Engineers have been making some progress in dealing with this refuse, using old tires as raw ingredients for new construction mater­ials for roads and recreation facilities. But ironically, the best solution may be simply to use old tires to do what they do best: burn.

According to Michael Blumenthal, vice president of the environment and resource recovery group of the tire industry’s Rubber Manufacturers Association (RMA), 1992 was the first year that processors began to dip into the scrap tire inventory to convert it into new products, mixing crumb rubber and tire dust—ground-up rubber tires—with a urethane binder to make sidewalks, playground surfaces, and basketball courts. Many engineers now construct new roads using tire chips for backfill and insulation and to give asphalt added springiness and long­er life. Whole tires are used to build breakwaters, barriers, and berms. In Milpitas, California, engineers used 660,000 shredded tires as lightweight roadbed to support the Dixon Landing Road interchange on Interstate 880.

Because of innovations like these, figures from the RMA show the percentage of scrap tires that have been recycled in the United States is rising, from virtually zero in 1990 to 30 percent in 2005. The RMA’s counterpart across the Atlantic, the European Tyre & Rubber Manufacturers’ Association (ETRMA), recorded comparable achievements, with Europe recycling 27 percent of its scrap tires in 2004. This progress is helping make a dent in the stockpiles of old tires, at least in developed countries. In 1990 the United States had an estimated 1 billion old tires lying around. By 2005 (the most recent year for which statistics are available), the United States had slashed that figure to 188 million, thanks to both recycling and using tires as industrial fuel.

Vern Reum is one of the leaders in the effort to banish tires from the dumps and recycle them into productive use. Reum, president and owner of Tire Depot in Polson, Montana, has been in the scrap tire business for 18 years and now handles some 1.2 million of them per year. His company collects tires from Montana, Idaho, Washington, Oregon, and Wyoming, making most of its money by charging dealers for transporting the tires and for disposal—a per-tire assessment known as a tipping fee.

A crime for the sake of tradition: people in Transcarpathia are preparing to smoke stingrays

Many villages in Transcarpathia still have a tradition of burning tires on Easter Saturday. By this time, the guys are massively demolishing the tires in a special place, so that only then the enchanting fire will be dispelled here.

Ancient traditions are not betrayed in the Perechyn region. Usually, a spacious place is chosen from prepared stingrays (they are taken by cars, carts) to make a fire. Pastures are the most suitable for the Sabbath fore-great hearth. The boys scatter the fire late at night and guard the "pillar of fire" until the morning. Have fun all night around the campfire, play cards.

Unfortunately, no matter how ancient this tradition may be, but it goes back to the pagan period, ecologists and priests forbid burning tires. After all, the smoke from burning rubber is extremely harmful, poisoning the environment.

People say that after such "poisonous fires" their gardens are covered with black ash, because the cloud of smoke, along with the wind, reaches good distances. Moreover, it is forbidden to spread fire in open areas now, when a full-scale war is going on in Ukraine. However, most people ignore these prohibitions. They are not strictly enforced by the young people who prepared the tires for burning this year.

Without betraying tradition, they commit a crime.

According to residents of the Perechinsky district, some owners stole car tires from the farm in advance. People sounded the alarm.

“We already discovered the theft on Friday morning,” says Ms. Maria from Turja-Remet. “They stole a tire from the flower bed where she wanted to plant flowers,” the resident adds. I understand that this is a tradition, although I am against smoking tires. People have already exploded, the woman is indignant.

By the way, in Turya-Remet, for many years in a row, local youth burned tires in the Gorbki tract (where pastures were located). Traces of a large-scale fire from stingrays can be observed here and now - a lot of ash is hidden under a film of moss. At the same time, not so long ago, this area suffered from dry burning - I had to witness terrible consequences.

Previously, old-timers say, wood was used for this tradition, not rubber. Each owner gave to "bend" something unnecessary from the estate that burns well - unnecessary boards, chairs. In addition, they carried diseases from the forest. In the last ten years, the fashion for burning old tires from cars has gone - they burn more wood and smoke the wrong word. However, such a tradition of using tires is completely contrary to common sense and parents should warn children about this, and not vice versa.

So let's keep the tradition, not the "fashion" of burning tires before Easter.

Recall that Transcarpathians prepare butter sheep for Easter - a real masterpiece in a basket (PHOTO)

Read on GK: An incredible “refreshing find” is located in a tract in the Perechinsky district (PHOTO)
Read on GK: 4,000 hygiene kits for children were delivered to Perechyn from Slovakia
Read on GK: “Dear sugar, golden cabbage rolls”: how simple ones survive people in Transcarpathia at this time

This material is also available in the following languages:Ukrainian

10 ways to kill rubber. Bad advice

Any car tire has its own service life, and few car enthusiasts come up with the idea to shorten this life. Yes, and it’s not very easy to do this, if you don’t remember about radical methods using sharp and cutting objects. In preparing this article, we turned to a professional racer for help, who can change several sets of “shoes” on his car in one day. As you already understood, today we, together with the online hypermarket 21vek.by, continue to talk about the most important consumable in a car - tires. This is the only part of the car that constantly touches the road surface, and therefore an extremely important element of active safety. Do not do what this article is about, and your tires will last a long time, retaining their characteristics.

Burnout

If anyone does not know, burnout is when the car is stationary and the drive axle (usually the rear) is slipping. It seems that this is the easiest way to "kill" the rubber. But try to make the drive axle rotate while the other one holds the car in place with the help of a brake. You need powerful brakes, a revving engine, and driving skills.

On a motorcycle, it's easy to burnout, but on a car, you have to try harder. But the tires will run out very quickly. By the way, for some production cars, for fun, they put the burnout option, which allows you to block the front wheels and burn the rear wheels a little. Pressed the button, turned on D - and push yourself on the right pedal. There is a similar option, for example, in the Ford Mustang.

Quick starts from a traffic light with a squeal of rubber

In general, burnout is not just a useless blowing of smoke to the delight of onlookers. Racing drivers sometimes warm up their tires in this way before starting. For example, this phenomenon is often found in professional drag racing. Before you go on a long straight and set a quarter-mile record, you need to “stretch” (that is, warm up) the tires a little. And now we come to the second way to shorten the life of car tires - drag races. Those who do it professionally know that expensive sports slicks wear out very quickly. But those who like to start with a squeal of rubber from a traffic light in the city should also remember that the life of tires is significantly reduced in this way.

Driving sideways

It's time to meet our today's hero. Anton Shenderov is a professional drifter and also owns a Tony Motors service station. The guy has several cars on which he moves not only on public roads. The main "working tool" is the Nissan 200SX - one might say, a classic in the world of drifting. The power of the machine is about 500 liters. with., which allows you to mercilessly destroy the rear tires in a matter of minutes.

- When we talk about the durability of car tires in drifting, everything directly depends on the power of the car. If the engine output is relatively modest, then in races you can kill a couple of tires in two to three hours. We are talking about brand new tires from the store. If the engine output in a racing car exceeds half a thousand horsepower, then it is enough for an athlete to make two passes of 40 seconds, and the rubber goes into the trash, - says a professional racer.

It must be taken into account that it is impossible to participate in drifting on any tires. According to the athlete, the cheapest tires that are suitable for professional competitions cost from $100 apiece. It turns out that the most powerful cars spend from $ 200 in 40 seconds. Well, or $5 per second. It is not surprising that tires are the main consumable in drifting. As you understand, this hobby is not cheap, and without sponsors, only very wealthy riders can participate in side sliding competitions.

For ordinary motorists, a reasonable question may arise: if the rear tire is used up so quickly, is it possible to transfer the front tire to the rear axle and drive a couple more laps?

- In fact, the front rubber has completely different purposes, and, accordingly, different properties. In order for the front wheels to have good grip and work properly, you need very expensive tires - more expensive than the rear ones. Therefore, it will not work to throw the wheels from the "muzzle" to the rear axle. But I note that the front tires are enough for half the season, or even the season: there the rubber consumption is an order of magnitude lower, - explains Anton.

Top league drift drivers can burn 50-80 tires in a weekend.

With regard to civil use of machines, it is possible to reduce the life of tires without slowing down when cornering. Here the dependence is simple: more rubber squeal during turns or braking - tires will last less seasons.

Driving fast on bad asphalt

It is obvious that the level of tire wear in motorsport is affected by the configuration of the track on which the competition takes place. But not everything is so clear-cut here. In normal circuit racing, drivers cannot influence the distribution of the load on the rubber: if there are more left turns on the track, then the tires will wear out more on the outside (right) side. In drifting, drivers themselves change the number of left and right turns, simply by “shifting” the car back and forth, so the configuration of the track plays a smaller role than in other disciplines. But what is really very important is the quality of the road surface.

- On old pavement, stone chips can literally gnaw through rubber in pieces, so if we are talking about tire durability, I would say that for drifting, the quality of the asphalt surface plays a more important role than the track configuration. As for the number of left and right turns, here you can monitor the wear of the rubber and, in which case, change the left and right tires in places, extending their life, , the athlete says.

Driving over potholes and bumps

Due to the quality of the road surface, rubber can be damaged even without any competition: a deep hole or a foreign object on the pavement can tear even new tires. With a strong impact on a hard corner, a "bun" may form on the tire, which will also require its replacement. Especially in the spring on the road, you need to more closely monitor the quality of the canvas. In addition to tires, the more expensive element of the car, the suspension, also suffers in the battle with bumps. And faulty chassis elements are another way to “kill” rubber.

By the way, if one tire is suddenly damaged, and the second has a high degree of wear, it is better to change a pair. Otherwise, there is a risk that during emergency braking (or a quick start), the new rubber will have a better grip, and the car will turn around. This is especially true for older cars without modern ABS and ESP systems.

Driving on Hot Asphalt

- We drift for entertainment, so when the pavement is warm, there is more entertainment, because there is more so-called "hold". In fact, we are constantly fighting to ensure that the rear wheels cling to the asphalt as much as possible. Accordingly, the hotter the asphalt, the better for the pilot. But not better for the tires - they wear out faster if we run on hot surfaces, of course. 0064 - a drift pilot shares his experience.

"Civilian" motorists should also remember that on hot summer asphalt, rubber wear increases significantly.

Summer operation of winter tires

Summer and winter tires have different composition. In particular, for "winter" a mixture with a larger amount of rubber is used - this allows you to make the tire softer. Most effectively, such rubber works out at sub-zero or near-zero temperatures. For the summer season, such a tire is not suitable. Even if you drive carefully and don't notice a difference in operating conditions, remember that heat and summer sun will wear down a winter tire faster.

- In summer, winter tires wear out much faster. I think one summer season for winter tires can be equated to two or even three cold seasons. As for all-season tires, it is clear that this is a compromise. It has its pros and cons. I would not rule out "all season": after all, it allows many people to save money. You just need to approach this issue with your head and understand what such rubber, , is capable of, advises Anton.

Tire storage in the wrong place

Affects the life of tires and how they are stored.

— Car racers are well aware that if slicks or semi-slicks are stored outdoors or in an unheated room in winter, the properties of the rubber deteriorate, it tans and does not demonstrate the properties that a similar tire model that was stored correctly, — says Anton.

According to the expert, it is storage conditions that affect the safety of rubber: tires should winter in a dry and preferably warm room. At the same time, there is not much point in walking and turning the wheels every month (there are such motorists).

Incorrect tire pressure

Incorrect tire pressure can kill or at least shorten its life. Here everything depends on the conscience of the driver. The minimum program is every time you get into the car, go around it and visually run your eyes over the wheels: a heavily flat tire will be visible to the naked eye. If you drive even a couple of kilometers on a completely flat tire, you can throw it away. Modern cars have pressure sensors that help a lot in this matter - the main thing is not to ignore the warnings of the on-board computer.

- I also advise you not to neglect the recommendations of specialists in tire fitting. When you are told to clean the rust from the wheels, use sealant or replace the tire inflation nipples, this is not just. Even a small nuance can lead to the fact that the tire will constantly deflate. In addition, I advise you to do a basic check of the car at least once a week. By basic check, I mean checking the level of technical fluids, pressure in the wheels, inspecting the brushes, , the expert advises.

According to Anton, any professional racing driver has a pressure gauge. It is one of the most important measuring instruments in motorsport. Another non-obvious advice from our interlocutor is, if possible, check the spare tire (if you have one) at a tire fitting. It’s good if the wheel stored in the trunk is never useful to you, but it’s better that it is always “ready”.

Buying new tires that have been in stock for three years

Year of manufacture of a tire is one of the most important parameters when it comes to tire life.

— From my racing experience, I can say that the difference between a tire that has been in storage for three years and the same tire that has just left the factory is very big. This applies to both driving characteristics and service life. In my opinion, if the tire has been in the store for more than three years, it should be sold at a discount and the buyer should be warned about this. I have already concluded for myself that tires that are more than five years old are no longer good for anything. And it doesn't matter if they drove this rubber or not,0064 - says the race car driver.


An excellent selection of tires for the season and other goods for cars from 21vek.by - on the website of the online hypermarket, as well as in the Onlíner Catalog. Delivery to any point in Belarus, own pick-up points in Minsk and regions, payment by any convenient method, including in installments, discounts on tire fitting - with 21vek.


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