The term "waste silicon materials" here refers to silicon ingots, silicon rods, edge trimmings, and silicon scraps that have lost their original usability or have been discarded despite partial usability due to cutting, breaking, residue, or failure to meet quality standards during silicon material preparation and processing. After collection, classification, and processing, these materials can be recycled as silicon resources and reused in processes such as crystal pulling, ingot casting, smelting, or recycling applications.