Pollution hazard
Due to the limitation of the working principle of energy-saving lamps, mercury in the lamps is inevitably a major source of pollution.
An ordinary energy-saving lamp contains about 5 mg of mercury, which is only enough to be covered with a ballpoint pen tip, but it may cause 1800 tons of water to be contaminated after it penetrates into the ground. Because mercury has a low boiling point, it can evaporate at normal temperature. After the waste energy-saving lamps are broken, the concentration of mercury in the surrounding air can be exceeded by a hundred times. Once the mercury in the human body exceeds the standard, it will destroy the central nervous system of the human body, and the human body can kill by inhaling 25 mg of mercury vapor at a time.
China's energy-saving lamp promotion strategy has been in existence for a long time. In 2008 alone, 62 million energy-saving lamps were promoted nationwide. Until 2009, it was as high as 1.2 billion. The country promotes energy-saving lamps up to 200 million. China is still blank in the harmless treatment of energy-saving lamps. The broken energy-saving lamps are sent to the landfill for landfill with domestic garbage. In 2006, China's scrapped mercury-containing lighting appliances were equivalent to 1 billion standard fluorescent lamps of 40 watts, and the amount of mercury released into the atmosphere due to improper disposal reached 70-80 tons.
Because the old energy-saving lamps contain toxic and harmful elements such as mercury and lead, they are the second largest domestic waste “mercury pollution source†after the waste battery. The energy-saving lamp recycling system in China is very “naiveâ€. If the disposal is improper, the pollution risk is not allowed. Neglect.
Some lead-type electronic fuel-saving lamps lead, mercury, lead in ballasts, polybrominated biphenyls and polybrominated diphenyl ethers in plastic parts exceed the standard; and some energy-saving lamps in the capillary, lamp holder, ballast all lead Exceeding the standard, mercury in the capillary exceeds the standard.
Recycling problem
"It is very energy-efficient to use, and there is no channel to take back." It has become one of the outstanding problems of electronic waste today. It is found that whether it is a supermarket or a waste recycling station, the waste energy-saving lamps are "not to be given by white." Some enterprises have engaged in public welfare recycling, but they are thought to have to renovate and sell energy-saving lamps. The energy-saving lamp recycling box should be padded with sponge and transported carefully.
Public welfare activities often fail to collect a few energy-saving lamps for a long time, and waste energy-saving lamps mixed in garbage bins and garbage stations are often seen.
Shanghai Electronic Waste Trading Center has a set of 1700 tons of imported equipment for recycling waste energy-saving lamps, which is very rare in China. On this type of processing line, the staff wearing protective equipment will send the waste energy-saving lamps into the processing equipment, and then recover them by crushing and mercury absorption. It is understood that a staff member of the Shanghai Electronic Waste Trading Center is seriously "eat not enough", mainly relying on some organs to send some old lamps.
At present, only three units in the country have obtained the national license to dispose of mercury-containing waste lamps. However, due to high recycling and transportation costs and harsh transportation conditions, the operating rates of these three companies are not high.
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