http://www.energygreenblog.info/electronic-waste-recycling-companies/
Components of electronic waste disassembly and reuse
E waste generated rapid increase in the number and variety, which is a problem global environment. Improper management of the environment also caused serious pollution. Therefore, the e-waste recycling technology research has become necessary, the article briefly describes the process of foreign sources of electronic waste, focusing on the national conditions of China with materials suitable for recycling and reuse of components of a combination of technology E-waste recycling and carry out a comparison and economic analysis.
Key words: waste E, components, dismantling, reuse of the electronics industry and information technology has become the fastest in the world, growing industries in the world, resulting rapid growth in electronic waste in the next l0 20 years is the growth of electronic waste a new high, indicating that the continuous generation of an enormous amount of electronic waste has become a global problem can not be avoided.
Developed countries and regions, early recognized the seriousness of this problem. Union Europe, for example, from the early 20 th century, 80 the European Union began the comprehensive utilization of waste and research in the field. His commitment to the separation metal and plastic, recycled materials and the development of metal enrichment technology. With in-depth study, they found that recovery from fire the moisture will cause secondary pollution to the environment, but biological methods are still immature. From the 20 th century, 90 years, experts found that the environmental impact of the mechanization of processing the smaller base does not produce toxic products, and therefore the mechanization as basis of the electronic process of waste treatment further developed.
After more than ten years of research and development, developed countries and regions have already formed a set of recycling of resources for the purpose of mechanical treatment as the main method of electronic process waste treatment, the main flow as shown in Figure l.
In the classification of electronic waste dismantling, ie the breakdown of the entire electrical equipment for ease Taiwan to cope with the consequences of the devices and materials, classified according to different materials. In view of the workforce in developed countries and regions are very expensive, so the classification is usually not held out the pieces dismantled dismantlement, but rather a direct mechanical grinding, so that foreign waste and recycling rate is high, while the components the frequency reuse is very low, essentially only 8% ~ 10%.
Compared with foreign countries, industry China e-waste dismantling large-scale components, mainly in the densely populated south coast. This is determined by the rich and cheap labor force to China development of electronic waste dismantling intensive industries such labor and decision. Guiyu Town, Shantou City, Guangdong Province, is a typical representative.
Comply with environmental requirements under the premise of the division of the region, the electronic waste labor and meticulous dismantling operations, efficient, methods are constantly developed, has accumulated a great experience. Some companies use tools quickly cut specializes in wire and plastic skin peel waste, half of the copper can remember, but also recycles its plastic skin some companies are experts in using the electrical resistance of local softening method of dismantling and recycling of reusable components and, as some companies are engaged with cutting or stamping chips or modules, and types of secondary sales of these components. The detailed division of labor increases the efficiency of components disassembly and sorting, and increases the value of the marketing of electronic components used to improve local waste and recycling.
At present, waste dismantling E Guiyu town has become a pillar industry and local residents, the main source of income for the dismantling industry of the region not only offers more than 50,000 job opportunities, led to the third round of development of industry and community, also keeps the recycled material in the process of energy consumption, reducing the possibility of secondary contamination. The area around the same time promote the development of related industries. For example, a lot of recycled plastic to promote simulation of plastic flowers, plastic accessories, stationery, gifts and other industries manufacturing has become the city of Shantou special industries. In Chenghai district, represented by about Guiyu geographical advantages for the use of components electronics used in the manufacture of toys, reducing production costs. Chenghai toy industry last year, $ 11.1 million in value annual production 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 reuse is a can recycling use of resources, converting old components waste into treasure, and reduce environmental pollution production activities. This will be the dismantling of China's electronic components and reuse technology for analysis and study.
The reuse of technology components E recycling of waste power, mainly through recycling, dismantling, crushing and screening to complete. Figure 2 shows the general flow of reuse. Dismantling which are divided into two categories: Category dismantling and removal of components. In this paper, Shanghai Second Polytechnic University Shanghai Jinqiao New Management Waste Industrial Co., Ltd. Designed by removing the pipe, for example, the techniques of dismantling e-waste.
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