Several common solid waste treatment technologies

Compaction technology
Compaction is a pre-treatment technology that reduces the volume of waste, lowers transportation costs, and extends landfill life. Compaction is a commonly used pre-treatment method for solid waste, such as cars, cans, plastic bottles, etc. It is suitable for compacting solid waste to reduce volume, but not suitable for compaction. Some waste that may cause operational problems, such as tar, sludge, or liquid materials, are generally not suitable for compaction treatment.
Crushing technology
In order to reduce the appearance of waste entering incinerators, landfills, composting systems, etc., solid waste must be crushed in advance. The crushed waste, due to the elimination of large gaps, not only has uniform size but also uniform texture, and is compacted during the landfill process. There are many methods for crushing solid waste, mainly including impact crushing, shear crushing, extrusion crushing, friction crushing, etc. In addition, there are proprietary low-temperature crushing and mixed crushing. The most widely used and effective solid waste crusher is the shear crusher. For landfill and compost waste, the use of a spiral roller crusher is more effective.
Sorting technology
Solid waste sorting is an important means of realizing the resource utilization and reduction of solid waste. Through sorting, useful waste is fully selected and utilized, while harmful waste is fully separated; Another method is to separate waste of different particle sizes, and the basic principle of sorting is to utilize the differences in certain properties of the materials to separate them. For example, utilizing the magnetic and non-magnetic differences in waste for separation; Separate using differences in particle size; Using the difference in specific gravity for separation, etc. According to different properties, various machines can be designed and manufactured to sort solid waste, including manual sorting, screening, gravity sorting, magnetic sorting, eddy current sorting, optical sorting, etc.