Recycling and processing methods of waste PCB include physical, chemical, and biological methods. Physical methods involve stripping the PCB and using techniques like mechanical crushing and sorting based on physical properties. Chemical methods include pyrometallurgy and hydrometallurgy. Alkaline paint stripping is an effective way to separate the paint from the circuit board structure for metal recovery. Overall, physical methods of PCB recycling are simple, scalable, cost-effective, and environmentally friendly, but face challenges such as incomplete metal separation and high initial costs.

Recycling and processing methods of waste PCB include physical, chemical, and biological methods. Physical methods involve stripping the PCB and using techniques like mechanical crushing and sorting based on physical properties. Chemical methods include pyrometallurgy and hydrometallurgy. Alkaline paint stripping is an effective way to separate the paint from the circuit board structure for metal recovery. Overall, physical methods of PCB recycling are simple, scalable, cost-effective, and environmentally friendly, but face challenges such as incomplete metal separation and high initial costs.