Solid waste treatment technology: According to statistics, last year China produced 620 million mobile phones, 182 million microcomputers, 99.96 million color TVs, and 81.53 million home air conditioners. In 2009, the total output of electrical and electronic products in the country was close to 1.2 billion units, and it still showed a rapid growth momentum. At the same time, home appliances have also entered the peak period of retirement. At present, there are 13 million refrigerators that are only scrapped in China.

With the huge output of electrical and electronic products and the incompatibility of the peak period of rejection, the processing industry for waste electrical and electronic products in China has not yet taken shape. A large number of waste electrical and electronic products are mainly processed through simple, low-efficiency and non-environmental methods. After the completion of valuable resources, the remaining toxic and hazardous substances are discharged at will, causing serious environmental pollution and endangering human health.

"For example, discarded printed circuit board processing, most of the use of coal furnace baking circuit board, after the separation of components, and then use incineration, acid leaching to obtain valuable metals. And the remaining low-value, difficult to handle non-metallic materials Arbitrarily abandoned, causing serious pollution of the soil, water bodies and plants and animals. Not only that, dioxins produced in the process of incineration are harmful to human health.” Wan Yung, director of technology, Dr. Zhang Yuping introduced.

“At present, China has become a global producer and consumer of home appliances. The scientific and environmental protection of used home appliances is a very urgent task at present.” Wang Xinfang appealed at the national waste electrical and electronic product recycling and processing technology conference.

In 2009, China officially issued Regulations on the Management of the Recycling of Waste Electrical and Electronic Products, which will be formally implemented on January 1, 2011. On April 1, 2010, the “Technical Code for Pollution Control of Waste Electrical and Electronic Products Disposal” issued by the Ministry of Environmental Protection was formally implemented to further standardize the pollution prevention and environment during the collection, transportation, storage, dismantling and disposal of waste electrical and electronic products. Protection of control content and technical requirements.

"The introduction of "Specifications" is conducive to the recycling of waste electrical and electronic products, especially to the promotion of comprehensive utilization of resources and environmental protection will play a positive role. For example, the "Specification" prohibits open burning, prohibits the use of cupola, simple The equipment such as reverberatory furnaces and simple acid leaching processes are used to dispose of waste electrical and electronic products. It is clearly stated that we must eliminate backward processing technologies, improve the industry's access threshold from the system, and help strengthen industry environmental protection.” Zhang Yuping introduced.

What is even more exciting is the progress in science and technology in China, which has made it scientific and environmentally friendly to dispose of waste electrical and electronic products. In Wanrong Technology, a high-tech enterprise established for only four years, the reporter saw that the most difficult electrical appliances in electronic waste disposal—refrigerators, air conditioners and other refrigeration appliances—have been harmlessly developed by the company’s self-developed waste refrigerators. The processing and recycling line processing, in just 2 minutes, dissociation into renewable materials such as copper, aluminum, iron, ABS plastic, glass and so on. And the entire process is safe, explosion-proof and dust-free. Not only that, the price of the equipment is only one-fifth of the price of similar equipment produced abroad.

“Last year in May last year, our equipment was successfully developed and was bought by a company in other provinces. In August, three sets of orders have been signed and it is now in short supply.” Mingguo Ying introduced. Wanrong has filed 12 invention patents and 26 utility model patents in the past four years since its establishment, and has filed more than 10 patents annually. Its "Automatic Printed Circuit Board Environmental Protection Processing and Recycling Production Line" won the "National Information Industry Major Technology Invention" and "Environmental Protection Science and Technology Progress Award"; "E-waste Thermosetting Plastics Recycling Technology and Equipment" was awarded " "National Major Industrial Technology Development Project"; "Waste and Harmless Refrigeration Treatment and Resource Recovery Technology and Equipment" passed the Ministry of Industry and Information Technology Ministry's ministerial-level scientific and technological achievements certification in January this year. The appraisal committee believes that this achievement has reached the international level. Advanced level. At the end of last year, Vice Premier Wang Qishan made a special inspection of Wanrong Technology and fully affirmed his research and development achievements.

Ming Guoying introduced Wanrong Technology as the only dismantling enterprise in the Changsha Changsha trial for new home appliances. At present, there are three electronic waste processing centers in Changsha, Zhangzhou and Miluo. Two processing bases will be established in Huaihua and Loudi this year. In addition, the first provincial-level electronic waste processing center in the central and western regions, the Hunan Electronic Waste Disposal Center, is also under construction. We plan to build 60 e-waste recycling and disposal projects by 2012 to achieve annual treatment of 2.1 million waste electrical and electronic products and 600,000 tons of e-waste. It can be expected that with the expansion of Wanrong, an era of scientific environmental disposal of electronic waste is coming.