Appliance recycling

New Orleans after Hurricane Katrina: mounds of trashed appliances with a few smashed automobiles mixed in, waiting to be scrapped

Appliance recycling consists of dismantling waste home appliances and scrapping their parts for reuse. Recycling appliances for their original or other purposes, involves disassembly, removal of hazardous components and destruction of the end-of-life equipment to recover materials, generally by shredding, sorting and grading.[1] The rate at which appliances are discarded has increased with technological advancement. This correlation directly leads to the question of appropriate disposal. The main types of appliances that are recycled are televisions, refrigerators, air conditioners, washing machines, and computers. When appliances are recycled, they can be looked upon as valuable resources. If disposed of improperly, appliances can become environmentally harmful and poison ecosystems.

The strength of appliance recycling legislation varies around the world.

For example recycling one refrigerator can save 10 pounds (4.5 kg) of foam insulation, and 300,000 British thermal units (320,000 kJ) of energy.

Disassembly

A key part of appliance recycling is the manual dismantling of each product. The disassembly removes hazardous components, while sorting out reusable parts. Procedures vary from one appliance to the other. The amount of hazardous components able to be removed also depends on the type of appliance. Low removal rates of hazardous components reduce the recyclability of valuable materials. Each type of appliance has its own set of characteristics and components. This makes characterization of appliances essential to sorting and separating parts. Research on appliance dismantling has become an active area, intending to help recycling reach maximum efficiency.[2]

Classification

There is a certain process used to recover materials from appliances. Parts are generally removed in order from largest to smallest. Metals are extracted first and then plastics. Materials are sorted by either size, shape, or density. Sizing is a good means of sorting to quicken future processing. It also classifies fractions that show composition. Materials report to larger or finer fractions based on original dimension, toughness, or brittleness.[1] Shape classification contributes to the dynamics of the material. Classification by density is important when it comes to determining the use of a material.

Example

Batteries and copper are sorted out first for quality control purposes. The materials are then compacted. Next, iron and steel (ferrous metals) are extracted using electromagnets. They are collected and made ready for sale. Then metals are separated from non-metals using eddy currents. Eddy currents are created by rapidly alternating magnetic fields, which induce metals to jump away from non-metals. Then water separation is used to sort plastics and glass from circuit boards and copper wires. Circuit boards and copper content is then sold. Plastics and glass are further compacted for reuse.[3]

Recycling By Region

Although appliance recycling is still quite new, countries have been making the effort to enact laws and regulations regarding the electric waste. Early addressing of waste home appliance recycling started with Japan, Switzerland, Sweden, the Netherlands, and Germany.

Europe

In 2003 Waste Electrical and Electronic Equipment Directive (WEEE) passed into European Law. It sets collection, recycling and recovery targets for all types of electrical goods.

Japan

By the 1950s and 60s Japan had already become a major producer of electric appliances. The first initiatives to recycle were launched in the 70s. Due to costs, disassembly was hardly achievable. The Home Appliance Recycling Law was enacted in 1998 and came into force in 2001, and recycling of waste electrics became a legal requirement under the Specific Household Appliance Recycling Law and the Law for Promotion of Effective Utilisation Resources.[1] Appliance manufacturers are now required to finance the recycling of their products.[4] The Association for Electric Home Appliances is a trade group that is responsible for orphaned products.[5]

China

China produces a significant share of the world’s appliances. This country also has a high influx of appliance waste. There has not been much progress in appliance recycling efficiency. China’s undeveloped dismantling and processing has led to elevated levels of toxins in waste appliance site vicinities.[6] Their appliance recycling methods require severe improvement.

United States

The United States is the largest waste appliance producer in the world, however there is still no federal law requiring appliance recycling and its legislation varies between states. On a state level, many mandatory electronic recovery programs have been implemented. There are also several commercial appliance recyclers, for example, Appliance Recycling Centers of America (ARCA). ARCA is a company based in Minneapolis, with a chain of recycling depots nationwide.

California

In 2003, the California Electronic Waste Recycling Act was signed. It established a new program for consumers to return, recycle, and ensure the safe and environmentally sound disposal of video display devices, such as televisions and computer monitors, that are hazardous wastes when discarded.[7] In 2005, consumers began paying a 6-10 dollar fee when buying an electronic device. These fees are used to pay e-waste collectors and recyclers to cover their cost of managing e-waste. The EWRA classifies e-waste by dividing the products into two categories: electronic devices and covered electronic devices. Only covered electronic devices (CEDs) are included in the EWRA, however all electronic devices needed recycling measures to be taken. The CEDs include televisions and computers that have LCD displays or contain cathode ray tubes.

Australia

Australia has the same approach as the U.S. at this moment. There are several commercial appliance recyclers in Australia, as well as some organisations that remove waste appliances and offer rebates, sponsored by the government. Some retailers like Appliances Online also remove and recycle customers' old appliances using services like Sims Metal Management.[8]

EPR

Extended producer responsibility (EPR) is defined as an environmental protection strategy that makes the manufacturer of the appliance responsible for its entire life cycle and especially for the “take-back”, recycling and final disposal of the product.[2] Essentially, manufacturers must now finance product treatment and recycling. Countries where this strategy has been adopted for waste appliances are: Switzerland (1998), Denmark (1999), Netherlands (1999), Norway (1999), Belgium (2001), Japan (2001), Sweden (2001) and Germany (2005), but it has also been expanded through legislation among certain South American countries such as Argentina, Brazil, Colombia and Peru. Countries in which EPR has long been established, demonstrate that the combination of government legislation and sound company practices can produce a higher take-back and recycling rate. An example of this is the Sony Corporation in Japan, achieving a 53% recycling rate.[2] Other ways countries approach the issue of waste appliances is either by offering recycling facilities or banning importation. Almost all countries, at least offer facilities that aid in appliance recycling. Many implement extended producer responsibility, in addition to recycling facilities.

See also

References

  1. 1 2 3 Buekens, A.; Yang, J. (2014). "Recycling of WEEE plastics: A review". The Journal of Material Cycles and Waste Management. 16 (3): 415–434. doi:10.1007/s10163-014-0241-2.
  2. 1 2 3 Li, J.; Lopez, B.N.; Liu, L.; Zhao, N.; Yu, K.; Zheng, L. (2012). "Regional or global WEEE recycling. Where to go?". Waste Management. 33 (4): 923–924. doi:10.1016/j.wasman.2012.11.011.
  3. ↑ WEEE Recycling Process. (2014). Retrieved April 7, 2015, from Sims Recycling Solutions Centres website: http://www.simsrecycling.co.uk/Resources/WEEE-recycling-process
  4. ↑ "Home Appliance Recycling Law". METI - Ministry of Economy, Trade and Industry. 22 May 2006. Retrieved 24 September 2010.
  5. ↑ "Electric Appliance Recycling in Japan" (PDF). INFORM. November 2003. Retrieved 24 September 2010.
  6. ↑ Liu, X.; Tanaka, M.; Matsui, Y. (2009). "Economic evaluation of optional recycling processes for waste electronic home appliances". Journal of Cleaner Production. 17 (1): 53–60. doi:10.1016/j.jclepro.2008.03.005.
  7. ↑ Electronic Hazardous Waste. (2010). Retrieved from Department of Toxic Substances Control website: http://www.dtsc.ca.gov/hazardouswaste/ewaste/
  8. ↑ "Recycling Appliances".
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