How to deal with waste plastic pollution effectively
Now plastics have been widely used in agriculture, industry, construction, packaging, national defense cutting-edge industry and People's Daily life and other fields.
For example, in agriculture, a large number of plastics are used in the manufacture of mulching film, rice seedling film, greenhouse film, irrigation and drainage pipes, fishing nets and breeding buoys.
In daily life.
Plastic is more widely used, such as raincoat, toothbrush, plastic bags, plastic film, etc. In addition, as a new packaging material, plastic has been widely used in the field of packaging, such as various hollow containers, injection containers, corrugated boxes, strapping rope, packing belt, etc.
Recently, Professor Wang Qi's team from Sichuan University published a paper titled 《Research on prevention and control strategy of waste plastic pollution in China》 in 《Engineering Science in China》.
The paper points out that waste plastics can be divided into four categories according to their sources: industrial, agricultural, medical and living.
It, especially plastic snack box, plastic bags and agricultural plastic film and other disposable plastic products, its usage is big, wide face, use cycle is short, most abandoned after mixed with waste or soil, difficult to recycle, and serious pollution of soil, mountain, ocean, etc., led to the junk siege of the city, Everest "highest dump" and so on environmental pollution event.
Some waste plastics that are difficult to recover release a lot of toxic gases in the incineration process, produce a lot of dust and smoke, seriously pollute the atmospheric environment and cause haze.
At the same time, China is short of petroleum resources. In 2018, its dependence on foreign oil exceeded 70%, and about 1/3 of the imported oil was used for synthetic plastic products.
Waste plastic, if not recycled, is a huge waste of non-renewable resources such as oil, coal and natural gas.
Waste plastic is a misplaced resource with great recycling value.
Effective disposal of waste plastics, especially recycling, is expected to solve the problem of plastic pollution.
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