Waste plastic foam is also a source of recycled plastics, and all plastics basically have the value of recycling. The amount of foam plastics is very large. If discarded, it will not only waste precious plastic raw materials, but also pollute the environment. Recycling plastic foam not only turns waste into treasure, but also benefits the environment.
There are two methods of traditional foam treatment: landfill and incineration.
Landfill: Because of the macromolecular structure, waste plastics are not easy to decompose and rot after being discarded, and are light in weight and large in size. They can fly with the wind or float in the water when exposed to the air. Therefore, people often use hilly recesses or natural depressions to build landfills and sanitary landfills. The sanitary landfill method has the characteristics of low construction investment and low operating cost. It has long been a method of disposal of waste plastics widely used in countries all over the world. However, landfill treatment has serious shortcomings: plastic waste has a large area due to its low density and large volume, which increases the burden of land resources.
Incineration: Incineration and recovery of heat energy is another main method of waste plastic treatment. The treatment method of incineration of waste plastics has the advantages of large processing volume, low cost, and high efficiency. Compared with direct landfilling, incineration treatment effectively utilizes waste plastics and has turned waste into treasure. But incineration treatment also has many shortcomings: with changes in plastic varieties and incineration conditions, waste plastics will produce polycyclic aromatic hydrocarbon compounds, carbon monoxide and other harmful substances during incineration. For example, PVC will produce HCL and polyacrylonitrile will produce HCN. And so on, these substances have caused pollution to the environment. Waste plastics also contain heavy metal compounds such as cadmium and lead. During the incineration process, these heavy metal compounds will be emitted along with smoke and incineration residues, which will also pollute the environment.
The foam is compressed by the Greenmax EPS recycling machine, and the volume of the foam is reduced to one-fifth or one-90th of the original volume, which easily solves the problem of difficulty in foam recycling.
