There is no clear scientific and technological standard to determine e-waste, but generally speaking, electronic products that have been abandoned or can no longer be used belong to e-waste. For example: discarded TV sets, obsolete old computers, old freezers, microwave ovens, discarded mobile phones, etc. When the amount of e-waste is increasing, its harm appears. With the increasingly stringent European environmental protection laws, China is rapidly becoming a major "exporter" and safe haven of e-waste - 80% of the world's e-waste is shipped to Asia, and China accepts 90% of the 80%.
E-waste is not only large but also serious. If not handled properly, it will cause serious harm to people and the environment. In particular, TV, computer, mobile phone, audio and other products contain a large number of toxic and harmful substances. Waste household appliances mainly contain six harmful substances: lead, cadmium, mercury, hexavalent chromium, PVC plastics, brominated flame retardants. TV cathode ray tubes, solders on printed circuit boards and plastic shells are toxic substances. The cathode ray tube of a TV set contains 4 to 8 pounds of lead. It takes more than 700 kinds of chemical materials to make a computer, including more than 300 kinds of chemicals harmful to human beings. The average lead content in a computer monitor is more than 1kg. Lead can damage people's nerves, blood system and kidneys. The battery and switch of the computer contain chromium compounds and mercury, which can penetrate through the skin and cells and cause asthma; Mercury will damage the brain nerves; Chromium, mercury and other elements in the host shell and magnetic disk drive have a great destructive effect on human cell DNA and brain tissue. If these electronic wastes are discarded or buried at will, a large number of harmful substances will seep into the ground, causing serious pollution to the ground water; If burned, a large amount of toxic gas will be released, causing air pollution.
Hongqiao Technology Co., Ltd. is a high-tech enterprise specializing in the research, development and production of cutting fluid, electronic hardware cleaner, surface treatment agent, welding materials: solder paste, tin rod, tin wire, BGA solder ball, SMT tin, electronic flux and thinner, electronic welding equipment and accessories, electroplating anode plate (rod), semi tin ball and other products.