Xinhua News Agency Yinchuan May 3 (reporter Ren Wei) These years, you changed a few mobile phones? How many home appliances have been eliminated and updated? Were they sold to the recycle bin or tossed in the trash? The acceleration of the replacement of electronic products has generated a large amount of e-waste, which will cause serious pollution to the environment if not treated effectively. However, what most people don't know is that this e-waste is also a "super mine", containing rich resources.

For every ton of recycled plastic (such as electrical casing, etc.), it is equivalent to saving 5-6 tons of crude oil; A ton of waste circuit boards, old mobile phones, can be extracted 200-300 grams of gold, and the average natural gold mine can be refined only 5 grams per ton of gold; More than 50 million used household appliances, 2.5 million tons of copper, iron, aluminum, plastic, rubber, glass and other available resources can be disassembled; Personal computers can be refined in addition to real gold and silver, there are other rare metals...

In fact, the waste mechanical and electrical equipment, cables, communication tools, automobiles and so on produced in the process of industrialization and urbanization contain recyclable steel, non-ferrous metals, precious metals, plastics, rubber and other resources. The large-scale recycling of these waste resources is the exploitation of "urban mines" and the transformation of garbage into treasure.

Located in the northwest of Ningxia Lingwu city, from 2008 began to explore gold mining "urban mine". At present, Lingwu renewable resources circular economy Demonstration Zone is the only national "urban mineral" demonstration base in Northwest China. In 2016, the park "ate" 2.8 million tons of urban waste such as old household appliances, computers, automobiles and plastics, which was decomposed and processed to produce 1.95 million tons of renewable resources on site.

In Ningxia Dayan Renewable Resources Development Co., LTD., the reporter saw the "recycling" journey of used household appliances. A dismantled compressor and other parts of the old refrigerator was sent into the dismantling work area, through the conveyor belt into the high several meters of the closed processing system, after one, two mechanical crushing device treatment, and then into the wind separation, magnetic separation device, the use of quality, density, properties of different principles of sorting and processing again, soon into piles of copper, iron, aluminum, plastic and other particles, from different exports out. These will become the raw materials of downstream production enterprises.

"The harmless disposal production line can disassemble a waste household appliance in 1 to 2 minutes. Each TV can disassemble about 10 kilograms of copper, iron, aluminum, plastic, etc., worth more than 40 yuan. The exploitable resources produced by disassembling the refrigerator are worth more than 90 yuan." "Said Wang Ning, deputy general manager of Ningxia Dayuan Renewable Resources Development Co.

"first-hand" resources are becoming less and less, and recycling is imperative. How to make sure not to pollute the environment while extracting "rich ore" from urban waste? The reporter learned from the interview that the electronic waste waste that the dismantling enterprise can not handle, such as phosphors, lead glass, etc., must be sent to the hazardous waste center audited by the environmental protection department, or a qualified processing unit for disposal.

The dismantling workshop is also equipped with full video surveillance to ensure the standardization, safety and environmental protection of the dismantling process. For example, the screen glass separated from the disassembled waste TV contains phosphors, which need to be collected and processed. Through the surveillance video, you can clearly see whether the workers have completed the standard operating procedures.

According to Wang Ning, according to the requirements of environmental protection, dismantling enterprises will waste materials in the steel, non-ferrous metals, circuit boards and other renewable resources for classification and treatment, must choose qualified downstream enterprises for refining and processing.

"By selling good products for export, to ensure that resources will not flow into enterprises or small workshops that do not meet environmental standards, to avoid" barbaric "processing and pollution of the environment." "He said.

In the past two years, in order to extend the industrial chain, the park has focused on the recycling and utilization of non-ferrous and non-metallic renewable resources, forming a processing capacity of 150,000 tons of copper, 160,000 tons of aluminum, 60,000 tons of lead, 60,000 tons of zinc powder, 500,000 tons of waste steel, 500,000 square meters of glass, 300,000 tons of waste oil and other processing capacity. In 2016, it achieved an output value of more than 3.5 billion yuan.

More and more enterprises "eat" waste while "spitting out" products. The foam glass sheet produced by recycling waste broken glass can be used for building exterior walls and thermal insulation of petrochemical pipelines; A large number of waste tires are processed into fine rubber powder, which is used in the production of tape, recycled rubber, chain belt, tires, etc., and can also be used as waterproof building materials; Freely discarded cans into the furnace, the blink of an eye into different models, uses of aluminum ingots...

It is understood that the total industrial output value of the demonstration zone in 2016 exceeded 8 billion yuan, and the output value is planned to reach 10 billion yuan in 2017. Some waste appliances dismantling enterprises are currently waiting for mobile phones, rice cookers, microwave ovens and other 9 types of small appliances to be included in the scope of the national waste appliances dismantling subsidy policy. It will be another "rich mine" with huge reserves.

Plastic Industry Video