With the rapid iteration of electronic products, electronic waste has become one of the fastest-growing solid wastes in the world. Among them, waste circuit boards have extremely high recycling value due to their containing precious and rare metals such as copper, gold, silver, and palladium. However, circuit boards also contain harmful substances such as lead, mercury, cadmium, etc. If not handled properly, they can cause serious harm to the environment and human health. Therefore, efficient and environmentally friendly recycling technology for waste circuit boards has become a research focus in the industry, and the future development direction will revolve around greening, high value, and intelligence
In the explosive wave of electronic waste in the digital economy era, waste circuit boards are becoming a special existence that combines environmental challenges and resource value. Each ton of discarded circuit boards contains up to 20% -40% copper, and the content of precious metals such as gold and silver far exceeds that of primary ores, making it a “rich mine” in the electronic age. If primitive methods such as open burning or acid leaching are used for treatment, it will not only cause the loss of metal resources worth tens of thousands of yuan, but also release toxic substances, causing permanent damage to the ecological environment.
The process of circuit board recycling and processing equipment is as follows: the first stage crusher adopts a double axis shredder, the second stage crusher adopts a hammer crusher, and the third stage crusher adopts a high-speed turbine crusher. The material is crushed into powder through three-stage crushing, and then sorted by air flow sorting equipment and electrostatic sorting equipment to obtain mixed metal and resin powder. This device has the advantages of automation, high processing efficiency, simple operation, and no dust pollution. The processed circuit board can recover copper and other metals through physical methods, which makes the treatment of the circuit board more thorough, reduces residual pollution to the environment, has a reasonable structural design, and is highly practical.
Driven by the development of circular economy and the goal of “dual carbon”, not only has the problem of electronic waste pollution been solved, but also through the high-value utilization of resources, greater value has been contributed to global resource recycling and environmental protection. Through the application of environmentally friendly technology for circuit board recycling, we can turn waste circuit boards into treasures and achieve effective utilization of resources.
The recycling industry of waste circuit boards is transitioning from traditional “extensive processing” to “green, high-value, and intelligent”. In the future, with the maturity of technologies such as AI sorting, bio metallurgy, and intelligent disassembly, the metal recovery rate of circuit board recycling will be further improved, while reducing environmental pollution. In addition, driven by the circular economy and the “dual carbon” goals, electronic waste recycling will become an important source of “urban mines” and provide key support for sustainable development. In the future, technological innovation and policy support in this field will jointly drive the industry towards a more efficient and cleaner direction.
