Recycling is a crucial step in achieving garbage recycling. The Fifth Plenary Session of the 19th Central Committee of the Communist Party of China explicitly called for accelerating the construction of a waste material recycling system. The Outline of the 14th Five Year Plan also listed "developing a waste material recycling system in 60 large and medium-sized cities" as part of 102 major engineering projects.

The construction waste sorting and processing production line integrates intelligent sorting, multi-stage crushing, screening, material transportation, multi-stage dust removal and cleaning, and central program control to crush, screen, and air select construction waste. After processing, the aggregates, slag, waste metals, and light substances in the construction waste can be accurately classified, and the aggregates can be divided into different specifications according to specific needs. Construction waste can be processed through this production line to produce high-quality recycled fine powder, recycled aggregates, recycled fuels, and recycled metals.

Rotten garbage is also a resource. If the existing stale household waste is treated on-site and turned into treasure, it can not only generate huge social benefits but also increase new wealth by "reclaiming lost land and returning it to the people". It is estimated that if old garbage is turned into building materials, it can make up for the shortage of cement resources and be used for filling pits, paving roads, roadbeds, etc. Calculated based on the fact that each ton of garbage building materials can replace 1.5 tons of related building materials, it can save 210 million tons of building materials annually; If 2 square meters of land are consumed per ton of building materials, 420 million square meters of land can be protected annually. Therefore, research on the "reduction, reuse, and resource utilization" treatment of stale household waste sites; Turning waste into treasure brings immeasurable economic and social benefits.