WHAT IS THE WASTE SORTING PROCESS?
Waste sorting is
the process of sorting mixed waste into different types of materials. This process is important to reduce the amount of waste that ends up in landfills and to recover valuable materials that can be reused or recycled. The main processes of waste sorting include feeding and conveying, drum screening, magnetic separation, screening by air separation systems, and precise sorting by manual sorting tables.
The first step in waste sorting is feeding and conveying. Waste is typically fed by a grabber onto a feeder and transported via conveyor to the next stage.
The second stage is the trommel screen. The waste is separated into two parts of different sizes by the rotating trommel screen. The smaller waste is usually organic matter and can be used for composting. The larger waste is sorted out and sent for further processing. Both the smaller waste and the larger waste are passed through a magnetic separator that sorts out the recyclable metals.
The third stage is the air separation system screening. This system separates the waste by weight into weight materials (such as metals and heavier materials such as glass) and light materials (such as paper, plastics, etc.).
Finally, the waste is sorted through a manual sorting table. This is the most precise stage of the sorting process, where trained workers manually sort the waste into different categories. This may include sorting out glass, plastic, paper, etc.
All in all, the purpose of
waste sorting is to achieve exact separation and turn useful parts to recycle or into energy. It means that waste sorting machines are devoted to turning waste into something of value.