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Electronic waste how to become more valuable
Author:Suny Group
Electronic waste how to become more valuable?Along with the electronic products renewal faster and faster, the family out of the old electronic products also more and more. Simple and crude and dismantling of waste electronic products, processing methods, such as incineration, landfill, even will make waste electronic products contain heavy metals and other pests retained in the environment for a long time, for the environment, the body will cause damage to people.
Waste electronic products, the first attribute is "toxic" or "bad", so you're often call them "e-waste", this is also to their recycling and dismantling and disposal of scientifically. Electronic waste toxic substances basically has two kinds: one kind is contain lead, mercury, cadmium, hexavalent chromium and other heavy metal toxic substances; Another kind is polybrominated biphenyls (PCBS), polybrominated diphenyl ether, freon toxic and harmful substances such as organic matter.
To the electronic waste to gold
Electronic waste, except for "toxic" another attribute is "useful", can be recycled to isolate steel, copper, aluminum, etc. In fact, even a gold in the electronic waste. Studies show that one ton of the waste computer boards and components it contains about 120 grams of gold.
From the electronic waste recycling of precious metals such as gold is traditional craft aqua regia acidolysis and cyanide extraction. The cyanide is deadly toxic chemicals, wang is a mixture of hydrochloric acid and nitric acid, is the strongest corrosive agents. These chemicals are deadly killer, greatly damage the environment. After many years experiment, we developed a set of free cyanide all wet process to extract precious metals such as gold, called Precious Metal Recycling Machine, realizes the double effect of resource recovery and environmental protection.
Electronic waste is not only an "urban mining" that has rich resources, it is extremely dangerous sources, has a dual characteristic of resource and polluting. Fortunately, the electronic waste recycling technology with each passing day, ten years, from the original manual dismantling development to the half automation, automation and dismantling; From polluting the environment of cyanide extraction to cyanide gold development process.
