Construction Waste Resource Recovery Process

The process of resource recovery from construction waste involves converting waste materials into reusable resources through a series of treatment steps. Here are some common construction waste resource recovery processes:

1. Sorting: Construction waste must first be sorted to separate recyclable materials (such as metals, plastics, wood) from non-recyclable materials (such as concrete, bricks, ceramics).

   
   

2. Crushing: Crushers are used to break large pieces of concrete, bricks, etc., into smaller pieces for further processing.

   
   

3. Screening: The crushed materials are classified by particle size using screening equipment to meet the needs of different applications.

   
   

4. Magnetic Separation: Magnetic forces are used to separate ferrous metals from construction waste, such as rebar and nails, for recycling.

   
   

5. Air Separation: Light materials (such as plastics, paper, wood chips, etc.) are separated from heavy materials (such as stones, metals, etc.) using air currents.

   
   

6. Optical Sorting: Different materials are sorted based on the differences in reflectance in the infrared or ultraviolet spectrum, mainly used for the separation of plastics, paper, and composite materials.

   
   

7. Ball Milling: The crushed materials are further ground into powder for the production of new building materials or filling materials.

   
   

8. Compaction and Baling: Recyclable materials (such as metals, plastics, paper, etc.) are compacted and baled to reduce volume for easy transportation and storage.

   
   

9. Pre-treatment System: An integrated system that includes steps such as crushing, screening, and magnetic separation for preliminary treatment of construction waste.

   
   

10. Integrated Processing Line: A complete construction waste treatment and resource recovery production line that integrates the above processes.

    
    

These processes can be combined and adjusted according to actual needs to adapt to different types and scales of construction waste treatment projects. Through these processes, construction waste is not only effectively treated but also transformed into valuable resources, achieving waste reduction, resource recovery, and harmlessness.