HowStuffWorks - Recycling aluminum
Ferrous metals are mainly composed of iron and have magnetic properties of steel, a carbon-containing iron alloy, is by far the most recycled material in the world's total steel production in 2008 reached 1 3 billion tonnes including more than 500 million tons were produced from scrap the most commonly recycled items are waste from industrial processes, end of life products such as containers, vehicles, appliances, industrial machinery and materials construction.
The use of scrap has become an integral part of the modern steel industry, improving the economic viability and reduced environmental impact compared to ore extraction, use of ferrous reduced so significant CO2 emissions, energy and water consumption and air pollution the same time industry, the steel recycling makes more efficient use of natural resources of the earth.
In general, metal recycling is a pyramid industry with many small businesses to large multinational benthophages scrap to the top of the steel recycling involves some or all of the following steps.
The aluminum metal recovery and high value of an aircraft.
Sort Because magnets attract steel, this metal can be easily separated from other recyclables like paper in a recycling facility with different magnetic belts types of steel need not be separated.
Grinding crusher incorporating rotating magnetic drums to remove iron and steel from the mixture of metals and other materials.
separation media further separation is performed using electrical currents, high pressure air streams and liquid Other methods floating systems may be necessary in cases such as steel cans which have a protective layer tin to be removed and recycled separately.
hydraulic shearing machine capable of exerting tremendous pressure is used to cut the thick heavy steel recovered from railways and ships other cutting techniques, such as the use of gas and plasma arc, are sometimes used.
Bundling iron and steel products are compacted into large blocks for ease of handling and transportation.
Steel is ideal for recycling because it does not lose any of its physical properties inherent in the process that can be repeated ad infinitum steel is recyclable and 100 so recycled steel can be used for the same applications as the steel products from virgin materials The products are made of recycled steel include.
Building materials for roads, railways, infrastructure and buildings.
Nearly 40 World steel production is produced from waste.
Recycling one ton of steel saves 1,100 kg of iron ore, 630 kg of coal and 55 kg of limestone.
CO 2 emissions are reduced by 58 through the use of scrap.
Recycling one ton of steel saves 642 kWh Power Generation, 1 8287 liters of oil barrels 10 9 million Btu's of energy and from 2 to 3 cubic meters discharge space .
Steel recycling uses 75 less energy compared to steel creation from raw materials - enough to power 18 million homes.
steel recycling using 74 less energy, less than 90 and 40 virgin materials less water; it also produces less than 76 water pollutants, 86 fewer pollutants and less than 97 mining waste.
automobile frames steel contain 25 recycled steel and a typical electrical device 75 will usually be recycled steel steel cans consist of at least 25 recycled steel.
For more information on technical issues, you can contact via the Brussels secretariat, the following experts who are members of the board of the BIR Ferrous Division.
Bureau of International Recycling BIR 1 least recycled steel made from recycled steel, steel ton of recycling.