The disposal of plastic solid waste has always been a headache. It is difficult to recover and produce toxic gas during combustion, which cannot be naturally decomposed. In recent years, people's demand for plastic products is increasing, and the treatment of plastic solid waste is becoming more and more serious.

Plastic bucket manufacturer ——Plastic products, with the characteristics of portability, corrosion resistance and beautiful appearance, have replaced the original ancient packaging model and formed a new generation of packaging style. However, it is unexpected that these excellent characteristics of plastic products will produce persistent plastic solid waste. Discarding waste plastic packaging at will has become the culprit of harming our living environment. The main reason is that these wastes are difficult to treat and cannot be decomposed and absorbed in the soil. At present, the proportion of plastic products in urban domestic waste in China has reached 18-25%. The disposal of solid waste from plastic products is not only a pure problem in the plastic industry, but also a public hazard, which has attracted the "special" attention of the international community.

Plastic bucket manufacturers - because of our urgent need for living environment quality, the global plastic products processing industry has actively developed many new plastic environmental protection technologies to adapt to social development. Whether in terms of resource conservation (the main purpose is to improve the durability, long life, multi-function and reasonable design of products), Or resource recovery and reuse (mainly research on efficient separation technology, separation technology, efficient melting reuse technology, chemical recovery technology, fully biodegradable materials, water-soluble materials, edible efficient films) and reduction technology (Mainly study the non plastic compression volume reduction technology of waste and the manufacturing technology of film bagged containers, and refine the finished products as much as possible on the premise of ensuring their good use performance).

In China, landfill, incineration and recycling are the main methods for solid waste treatment of urban plastic products. Several feasible treatment methods are listed:

1. Incineration heat recovery

Most plastic products use petroleum as raw material. Its main component is hydrocarbon, which can be burned in air. For example, polystyrene generates more heat when burned than dye oil. A considerable number of experts believe that sending the waste of plastic products to incinerators for burning can provide heat for heating and burning, because 85% of petroleum dyes are burned, and only 5% of petroleum dyes are made into plastic products. It is normal for plastic products to be sent into the combustion chamber as fuel after use. Utilizing heat is one of the ways to recycle plastics, which cannot be underestimated.

However, treating plastics in this way has some disadvantages. When all kinds of plastic products are burned together through incineration, a large amount of toxic gas will be produced. For example, chlorine accounts for half of the PVC composition, and a large amount of chlorine released during combustion will produce strong corrosivity. Therefore, before using this method, plastic solid waste should be classified.

2 Classified recovery method

If you want to recycle plastic products, Xi'an plastic bucket The manufacturer tells you that it is very important to strictly classify plastic solid waste. Common plastic types include low-density polyethylene, polystyrene, PVC, polypropylene, polyurethane, high-density polyethylene, polyamide, etc., as well as their differences. It is difficult for ordinary people to distinguish the types of plastics. But now, for plastics, most of the classification work is done manually. Today, scientists are studying how to use machines to classify plastic waste. A German environmental protection equipment company uses infrared recognition plastics, which is not only fast and accurate, but also high in economic cost, and cannot be promoted.

3 Chemical method

In recent years, researchers began to analyze how to deal with plastic solid waste from a chemical perspective. The method adopted is to shorten the long chain of the polymer through chemical action and restore the properties of its original material. The decomposed materials can be used as raw materials for the production of new plastic products. If this method can be popularized, it will undoubtedly be a new trend of great changes in the plastic industry.