What is ewaste？refers to the use of electrical or electronic equipment, mainly including refrigerators, air conditioners, washing machines, televisions and other electronic products, such as electronic technology and other electronic products. Electronic waste requires careful treatment, in some developing countries, the phenomenon of electronic waste is very serious, the environmental pollution is threatening the health of local residents. Guangdong Guiyu is decomposition of our country folk e-waste recycling is the most concentrated areas, local people thus obtained huge profits at the same time is also facing very serious pollution threat.
What is ewaste？What is its basic category？Electronic waste is a wide variety, it can be broadly divided into two categories: one is relatively simple materials, environmental hazards of waste electronic products, such as refrigerators, washing machines, air conditioners and other household appliances and medical, scientific research, and other types of products are relatively simple, the environment is more complex, such as computers, televisions and other harmful substances, the mobile phone's raw materials in arsenic, cadmium, lead, and other varieties of persistent and biological accumulation of toxic substances, etc..
What is ewaste？From its equipment composition，we can know :n the printed circuit board, the most metal is copper, in addition to gold, aluminum, nickel, lead, silicon metal, etc., which are rare metals. There are statistical data show that the gold content per ton of scrap circuit board reached 1000g. With the increase in the level of technology, the per ton of waste circuit board has been able to extract the 300g gold, the market price of about 3 yuan.
What is ewaste？---Available device
Most of the electronic apparatus are provided with a mechanical mechanism, generally iron or plastic, steel and so on, can carry out a lot of iron, plastic, steel recycling; computer boards Goldfinger or CPU pins in order to strengthen the conductivity, in general, gold coating, the special equipment for gold recovery.
What is ewaste？---Main harm
The composition of electronic waste is complex, and more than half of the material is harmful to human body, and some are even highly toxic. For example, a computer has more than 700 components, of which half element containing mercury, arsenic, chromium and other toxic chemicals; televisions, refrigerators, mobile phones and other electronic products also contain lead, chromium, mercury and other heavy metals; laser printers and copiers contain carbon.