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Components of electronic waste dismantling and re-use by big tree
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Components of electronic waste dismantling and re-use by BIG TREE
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| Article Posted: 04/26/2010 |
| Article Views: 133 |
| Articles Written: 1033 - MORE ARTICLES FROM THIS AUTHOR |
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Components of electronic waste dismantling and re-use |
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Business,Business News,Business Opportunities
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E-waste generated rapid increase in the number and variety, making it a global environmental problems. Improper handling of the environment also caused serious pollution. Therefore, the electronic waste recycling technology research has become necessary, the article briefly outlines the process of foreign e-waste resource, focusing on China's national conditions of materials suitable for recycling and reuse of components a combination of E-waste Recycling Technology and carry out an economic comparison and analysis.
Key words: E-waste; components; dismantling; re-use of
Electronics and Information Technology industry has become the world's fastest growing industries in the world, the resulting rapid growth in electronic waste in the next l0-20 years will be the growth of electronic waste a new peak, which indicates that the continuous generation of a huge amount of E-waste has become a global problem can not be avoided.
Developed countries and regions, early recognized the seriousness of this problem. The European Union, for example, from the early 20th century, 80 the European Union began the comprehensive utilization of e-waste research in the field. Their commitment to separation of metal and plastic, materials recycling and metal enrichment technology development. With the in-depth study, they found that the fire and wet recovery will cause secondary pollution to the environment, but biological methods are still immature. Since the 20th century, 90 years, the experts found that the environmental impact of mechanization of processing the smaller, basic does not produce toxic products, and thus mechanization as the foundation of E-waste treatment process be further developed.
After more than ten years of development and research, the developed countries and regions have already formed a set of resource recycling for the purpose of mechanical treatment as the main method of electronic waste treatment process, the main flow as shown in Figure l.
In which the classification of electronic waste dismantling, that is, the disintegration of the entire Taiwan electrical equipment for ease of dealing with the aftermath of the devices, and materials, classified according to different materials. In view of the labor force in developed countries and regions are very expensive, so the classification is generally not carried out manually disassembled parts dismantling, but rather a direct mechanical crushing, so the foreign e-waste recycling rate is high, while the components of the re-use of rate is fairly low, essentially only 8% ~ 10%.
Compared with foreign countries, China's electronic waste dismantling industry, large-scale components, mainly in the densely populated southern coast. This is determined by China's rich and cheap labor force for the development of electronic waste dismantling of such labor-intensive industries and the decision. Guiyu Town, Shantou City, Guangdong Province, is a typical representative.
In meeting environmental requirements under the premise of the region's waste electronic products division of labor and meticulous dismantling operations, efficient, methods are constantly devised, has accumulated a wealth of experience. Some companies use tools for quickly cutting specializes in wire and plastic waste peel skin, the middle of the copper can recall, but also recycled its plastic skin; some enterprises are adept at using the electric heater of local softening method of dismantling and recycling of reusable e - components; some enterprises are dedicated mode using cutting or stamping out chips or modules, and sub-models in the sales of these components. This meticulous division of labor increases the efficiency of components disassembling and classification, and increases the value of the commercialization of electronic components used to improve the local e-waste re-utilization.
At present, the E-waste dismantling Guiyu town has become a pillar industry and local residents, the main economic source of dismantling industry in the region not only provides more than 50000 job opportunities, led the third-round development of industry and the community, also saves the material recycled in the process of energy consumption, reducing the possibility of secondary pollution. The surrounding area while promoting the development of related industries. For example, a large number of recycled plastic to promote plastic simulation of flowers, plastic accessories, stationery, gifts and other manufacturing industries has become the city of Shantou special industries. In Chenghai district, represented by close to Guiyu geographical advantages to the use of electronic components used in toy manufacturing, thus reducing production costs. Chenghai toy industry last year, 11.1 billion in annual output value of 70% of exports, toys, Chenghai District, the industrial economy has become the first pillar industries.
This phenomenon shows that the components of electronic waste dismantling and re-use is a can recycling use of resources, the old components turning waste into treasure, and reduce environmental pollution production activities. This will be the dismantling of China's electronic components and re-use of technology to make an analysis and study.
The re-use of technology components
E-waste recycling of waste electrical appliances, mainly through recycling, dismantling, crushing and sorting to complete. Figure 2 shows the overall flow of the re-use. Dismantling of which are divided into two categories: Category disassembling and disassembling components. In this paper, Shanghai Second Polytechnic University Shanghai New Jinqiao Industrial Waste Management Co., Ltd. designed by disassembling pipeline, for example, on e-waste dismantling techniques. I am a professional editor from China Product, and my work is to promote a free online trade platform. http://www.himfr.com/ contain a great deal of information about panasonic dmc fx30 , digital camera 6mp welcome to visit!
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