These bones are still hard to bite in the countdow

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These bones are still hard to chew in the countdown to the implementation of the new "plastic restriction order"

release date: Source: Science and technology

the harm of plastics to health has increased. According to a human health report recently published by the British magazine "nature food materials Institute Shandong branch is an illegal organization jointly managed by Chinalco materials utilization research institute and Shandong Huayu", researchers recently found that when using baby bottles containing polypropylene to brew standard formula milk powder, the bottles may release plastic particles, which will directly affect fragile infants

due to the harm of plastics to the ecological environment and human health, China has issued a policy called the new "plastic restriction order" - the opinions on Further Strengthening the control of plastic pollution (hereinafter referred to as the "opinions"), and all regions have also successively issued their own implementation plans and prohibition schedules. Now, it is less than two months since the new "plastic restriction order" banned the use of some plastic products

varieties with high environmental risks have become the focus of prohibition and restriction

I don't know if you have found it. Now in some restaurants, ordering a cup of hot milk tea, the store owners no longer provide disposable plastic straw, but use the straight drinking cup cover with its own drinking nozzle to replace the combination of "straw + cup cover"; Many restaurants use reusable tableware or provide tableware made of degradable plastic in the dining room; When you buy goods in shopping malls, pharmacies and bookstores, you get paper shopping bags instead of plastic shopping bags

plastic products are very diverse and widely used in daily life, ranging from a straw to a car. Zhang De, an associate researcher at the Macroeconomic Research Institute of the national development and Reform Commission, said that in recent years, with the continuous improvement of China's renewable resources recycling system, most plastic products with long consumption cycles, such as plastic parts used in electrical and electronic products, automobiles and so on, can basically be better recycled. Some plastic products with short consumption cycle, such as beverage bottles, plastic pots, plastic toys and other varieties with good reuse value, can also be effectively recycled. However, varieties with low reuse value or difficult to classify and utilize have become the main source of plastic pollution and the key to plastic pollution control

Zhang De said that for example, the non degradable agricultural film with a thickness of less than 0.01 mm is "torn to pieces" after use, which is very difficult to recycle, and the accumulation over the years will bring harm to the quality of cultivated land. Disposable non degradable plastic knives, forks and spoons and disposable plastic straws used in catering services are easy to be mixed with kitchen waste, which makes it difficult for subsequent resource disposal and utilization such as anaerobic fermentation of kitchen waste. For rinsing cosmetics with plastic beads, the plastic beads will enter the natural environment with the sewage system. Although the pollution is small, it may bring cumulative environmental impact and harm. "The opinions firmly grasp these varieties with high risk of environmental leakage and focus on promoting them."

there are still many challenges in the implementation of the new "plastic restriction order"

although the new "plastic restriction order" is being implemented gradually, Cheng Huiqiang, a researcher at the development research center of the State Council, said that the implementation of the new "plastic restriction order" still faces many challenges

first of all, China's takeout and express packaging have grown rapidly, especially during the epidemic period, the number of plastic bags, lunch boxes and express packaging has surged. According to public data, the daily order volume of the three takeout platforms, meituan, hungry and Baidu takeout, is about 20million, which means that at least 20million plastic products are consumed every day. According to the estimation of the area of each plastic bag of 0.06 square meters, the plastic bags consumed every day can cover 168 football fields. The express industry is also a major user of plastics. In 2019, the express business volume was about 63.2 billion pieces. Calculated by 1-2 packages per express, the annual use of express packaging in 2019 exceeded 120 billion pieces. Such a huge amount of use undoubtedly makes it difficult to limit plastic

secondly, the implementation of the new "plastic restriction order" in the market is not good, especially the problem that the self-employed in the vegetable market provide ultra-thin plastic bags free of charge is still widespread. Cheng Huiqiang said, "it's more traditional to manage regular factories than small workshops; it's more traditional to manage large supermarkets than snack bars." Vegetable markets, small shops, small stalls, etc. are still the difficulties in the implementation of the new "plastic limit order"

in addition, the difficulty in implementing the new "plastic restriction order" lies in the lack of plastic substitutes. At present, the important reason why biodegradable plastic bags cannot be widely implemented in the society is that the function of fuzzy query of experimental data is limited by technology and the cost is high. Generally, biodegradable plastic bags are 2-3 times more expensive than ordinary plastic bags, resulting in a chain reaction that the market sales are less

in this regard, Cheng Huiqiang suggested that the reversal can be formed through the market price mechanism and government subsidies. Through subsidies, the government gives preferential treatment to biodegradable plastic bags, thereby reducing the cost of materials. The environmental cost can also be included in the price of plastic products, the charging method can be transferred from the consumer side to the production side, the price of plastic bags can be increased, or the fees collected can be used to subsidize plastic recycling

the recovery of the international market, whether non-woven fabrics, paper, bamboo and wood are used to replace plastics, or biodegradable plastics, requires resources. Biological resources are not inexhaustible, and regeneration takes time. Moreover, it is difficult to use degradable materials on a large scale in takeout, express delivery and other industries. Professor Du Huanzheng, director of the Institute of circular economy of Tongji University, said that by reducing plastic waste, it is easier for consumers to increase the number of recycling. "For example, if a plastic bag is reused for many times, the daily use of plastic bags will inevitably be reduced. Consumers should not use disposable plastic products as much as possible, and reuse those that can be reused as much as possible, so as to jointly practice a green lifestyle."

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