Environmental protection weekly report, issue 5
Domestic information:
1. State Council: third party enterprises in pollution prevention and control can enjoy tax incentives
[www.chinasanitary.com] on March 20, Premier Li Keqiang chaired an executive meeting of the State Council to determine the division of responsibilities in the government work report. The meeting decided that from January 1, 2019 to the end of 2021, the third-party enterprises engaged in pollution prevention and control will be subject to corporate income tax at a reduced rate of 15%.
2. Voice of the two sessions: it is necessary to upgrade the 'plastic restriction order'
The construction of plastic waste recycling system is relatively backward, consumers' environmental awareness is not strong, and the phenomenon of randomly discarding plastic waste is serious. Especially in the third and fourth tier cities and the vast rural areas, the classified collection and treatment of domestic waste are advancing slowly, and the waste plastic resources are lack of effective recycling. At this stage, it is necessary to upgrade the 'plastic restriction order'.
3. It's funny for Zhou Dongyu to go shopping with his mother and refuse to pack goods in plastic bags with hats
On the evening of March 21, Zhou Dongyu posted photos of shopping with his mother on his personal social platform, and wrote: 'take a walk with my mother, walk to the supermarket, and when checking out, I said with my mother in one voice: no! We have hats. Don't use plastic disposable products, start from me! '
International Information:
1. Researchers at Louisiana State University made biodegradable plastic beads for the carnival. In the past 200 years, people in New Orleans have given free gifts to people participating in parades, from nuts and glass ornaments at the beginning to plastic beads that people at parties are now used to. Although colored beads have become the staple food of this landmark Festival, the remaining Carnival beads eventually scattered on the streets of New Orleans. Fortunately, a researcher came up with a solution to this problem, that is, biodegradable plastic beads. If this idea can be popularized, New Orleans can save a lot of cleaning costs and landfill space. (inhabitat.com)
2. According to new atlas, although plastic has many uses, it is not the most environmentally friendly material. As we continue to use plastic products, marine plastic pollution is also becoming increasingly serious. We have even seen a large number of plastics appear in the Arctic sea ice, penetrate into the deepest part of the ocean, and even enter the human food chain.
To try to get rid of this situation, chemists at Colorado State University have now developed a five element method based on biological derivation γ- Butyrolactone polymer, which obviously has the advantages of all plastics, but can be easily decomposed and recycled repeatedly.
Eugene y.-x, chief researcher of the project Chen said: 'in principle, polymers can be chemically recycled without restrictions.' Our dream is to see this chemically recyclable polymer technology appear on the market. '
The study was published in the journal Science.
3. The Finnish National Technology Research Center recently announced that the agency and other units have jointly developed a number of new environmental protection technologies for textiles such as recycled clothing, and the regenerated fibers produced can be used as raw materials for the textile industry.
The Finnish National Technology Research Center said that through this series of new technical means, old clothing materials, low-quality cotton, wood-based fibers, waste paper, cardboard boxes, etc. can be regenerated into viscose fibers. The whole process does not use traditional carbon disulfide and other raw materials, and will not pollute the environment. This method can recycle textiles for 6 to 7 times without affecting product quality.
In recent years, the global textile consumption has increased alarmingly. According to statistics, the global fiber consumption was about 96 million tons in 2015 and will increase to 257 million tons by 2050. The European Union has ordered a ban on the disposal of textile waste and asked Member States to start special textile recycling from 2025.
4. At present, one of the great crises facing the earth's environment is the proliferation of plastic waste. Since the large-scale production of plastic in 60 years, 6.3 billion metric tons of plastic waste have been produced, of which 90.5% are not recycled, and they are all over the world. If we do not change our lifestyle, there will be about 12billion metric tons of plastic waste by 2050. With the deepening of scientific research, a potential solution is to turn these plastic waste into a usable fuel source.
A scientific research team from Purdue University recently successfully developed a new production process that can convert ordinary types of plastics into fuels similar to gasoline or diesel. They published a paper on ACS sustainable chemistry and engineering, which introduced in detail how to convert polypropylene (commonly used in toys, medical devices and food packaging) into fuel with enough purity for automobiles.