With the continuous development of the global economy, there is an increasing emphasis on environmental protection. Therefore, environmental protection measures should be taken to reduce the adverse effects on the environment. Plastic materials have played a significant role in various fields around the world and are widely used. However, currently there are more and more waste materials worldwide, which not only consume a large amount of resources but also cause serious pollution to the environment. Therefore, reasonable measures should be taken to strengthen the treatment of waste plastics and achieve environmental protection.
-
Analysis of the main sources and current situation of global waste plastics
The disposal of waste plastics is an important environmental protection task that needs to be done globally. Therefore, reasonable plastic environmental protection treatment processes should be adopted for waste plastics. The world produces a large amount of waste plastic every year, so the disposal of waste plastic materials has become an urgent issue. There are many sources of waste plastics in the world, including foam, plastic film and plastic bags. Engineering waste plastics account for an important part of the total waste plastics, so it can be seen that there are many kinds of waste plastics, and the number is large, which has a serious adverse impact on the global environment.
-
Recycling and reprocessing technology for waste plastics
2.1 Simple recycling process
2.1.1 Overview of Simple Recycling Processing
In daily life, some waste plastics are generated and classified for recycling. Recyclable waste plastics can be processed and reused directly, which can effectively reduce the pressure of waste plastics on the environment, save resources, and reduce the cost of enterprises. This recycling and reuse method is an effective way to dispose of waste plastics and is also the simplest way to protect the environment.
2.1.2 Simple recycling methods
According to different processing objects and production methods, simple recycling methods can also be divided into the following centralized methods: the first pair of recycled waste plastics can be processed through simple steps such as crushing, molding, and processing; Secondly, for packaging waste generated from commercial circulation, simple processes such as separation, cleaning, and crushing are used for treatment. For waste plastics, cleaning can improve their quality; For some relatively special materials, pre-treatment is required, and this process is also more responsible. Therefore, compared with simple picking processes, this processing method has higher production costs. Before pre-treatment, for waste plastics, they should also be subjected to composite regeneration. In short, simple recycling of waste plastics can improve resource utilization and reduce environmental pollution.
2.1.3 Simple recycling process
Adopting a simple recycling process, the waste plastic treatment workers mainly deal with two aspects: hard large plastic products and smooth large plastic products such as plastic buckets and bottles. The simple recycling process mainly includes three parts, namely washing, drying, and disinfection process. The use of simple recycling and regeneration technology for treatment has relatively low costs, mainly including two aspects: direct utilization and modified regeneration utilization. In the specific processing process, different processing objects should also be considered to perform simple processing on waste plastics. In general, during the processing of waste plastics, the same resin raw materials as the processed object can be used and mixed for production, which can improve the performance of plastic products and ensure their quality.