With the rapid development of electronic technology, PCB boards and integrated circuits are widely used in various electronic devices. However, if discarded circuit boards are not handled properly, they will not only cause waste of resources, but also pose a threat to the environment and human health. Therefore, scientific and efficient recycling and processing of these electronic waste has become an important issue for sustainable development in today's society. The recycling and processing process mainly includes the following steps: 1. Classification and disassembly Firstly, the discarded PCB boards and integrated circuits are classified to remove non-core components such as shells and connecting wires, so as to facilitate targeted processing in the subsequent steps. 2. Crushing and sorting The circuit boards are crushed into small particles by mechanical means, and then metal and non-metal materials are separated by magnetic sorting and wind sorting, such as copper, gold, silver and other precious metals, which can be extracted and reused. 3. Chemical treatment and extraction Acid leaching and electrolysis are used to extract high-purity precious metals from metal mixtures. At the same time, the generated wastewater is treated harmlessly to avoid secondary pollution. 4. Resource reuse The recycled metal materials can be reused in electronic manufacturing or other industrial fields, while non-metallic parts such as fiberglass and resin can also be used in the production of building materials or fillers. The significance and prospects of recycling Through professional recycling, not only can the exploitation of mineral resources be reduced and energy consumption be reduced, but also the pollution of electronic waste to soil and water can be effectively controlled. In the future, with the promotion of green manufacturing and circular economy, the recycling technology of PCB boards and integrated circuits will be more efficient and environmentally friendly, providing a solid guarantee for the sustainable utilization of resources.