1, Definition of plastic secondary recycling
Plastic secondary recycling, also known as plastic recycling, refers to the process of removing impurities and pollutants from previously used plastic products through a series of treatment processes, transforming them back into raw materials that can be used to manufacture new plastic products. Unlike primary recycling, secondary recycling focuses more on the deep treatment and reuse of waste plastics to improve resource utilization and environmental benefits.
2, The significance of plastic secondary recycling
Resource conservation: Plastic is a valuable resource, and through secondary recycling, we can convert discarded plastic products into new raw materials, thereby reducing the demand for native plastic. This helps to save limited oil resources and alleviate resource pressure.
Environmental protection: Plastic waste, if not properly treated, can easily cause pollution to the environment. Secondary recycling can convert these wastes into valuable products, reduce environmental problems caused by landfill and incineration, and reduce the damage of plastic pollution to ecosystems.
Economic benefits: The development of the plastic secondary recycling industry chain can create employment opportunities, promote the development of related industries, and improve economic benefits. Meanwhile, the price of recycled plastics is usually lower than that of native plastics, which helps to reduce production costs and improve market competitiveness.
3, Practical methods for secondary recycling of plastics
Collection and classification: Firstly, it is necessary to collect discarded plastic products and classify them according to different materials and uses. This helps to facilitate the smooth progress of subsequent processing techniques.
Cleaning and crushing: Clean the sorted waste plastic to remove surface dirt and impurities. Then, it is crushed into small pieces through a crusher for subsequent melting and granulation.
