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What is the hazard background of Electronic waste?

Aug 19, 2020

The advent of the information age has enabled the electronics industry to develop rapidly. With the rapid development of the electronics industry, e-waste pollution is inevitably placed in front of us. Electronic waste is mainly includes various electronic and electrical products such as computers, communication equipment, televisions, refrigerators, washing machines, etc. The electronic information technology industry has become one of the fastest growing industries in China, and the resulting e-waste has also grown rapidly. The next 10 to 20 years will be the new peak of e-waste growth. The disposal and recycling of wastes of Waste Computer Motherboard (PBC) and Lines Boards (PWC) have become an issue to be studied urgently.

PCB

Electronic waste is a master of poisons. For example, a 15-inch CRT computer monitor contains harmful substances such as cadmium, mercury, hexavalent chromium, polyvinyl chloride plastic and brominated flame retardant. The battery and switch of the computer contain chromium and mercury, and the computer components also contain Arsenic, mercury and many other harmful substances; electronic products such as televisions, refrigerators, and mobile phones also contain heavy metals such as lead, chromium, and mercury; and laser printers and copiers contain toner. If discarded electronic products are thrown into the wilderness or landfill area as general waste, the heavy metals such as lead contained in them will penetrate the contaminated soil and water quality, and will be circulated through the food chain of plants, animals and humans, eventually causing poisoning incidents; Burning it will release a lot of harmful gases such as dioxins, which threaten human health. The "Guiyu Phenomenon" is a living example.


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