[Scientific Power] Save the earth!Turn non -degradable garbage into spices and drugs

Plastic can be seen everywhere in our lives. The small tableware on the table is used to the parts of the spacecraft. But on the other hand, plastic, especially non -degraded plastics, will cause many environmental protection problems after being discarded. This is because the non -degraded plastic can remain very long on the earth. It has reached decades or even hundreds of years. If they are not properly handled, they will accumulate into garbage, which will cause environmental pollution and even endanger the lives of other creatures.

Paulo Oliveira

Have you ever heard of the eighth continent in the world? On the Pacific waters, there is an area of ​​1.4 million square kilometers of marine garbage accumulation bands. Its area is equivalent to 4 Japanese islands, so it is called the eighth continent in the world. There are a lot of non -degradable garbage among these garbage.

What is even more terrible is that these non -degradable garbage will be physically decomposed into the "micro -plastic particles" that are difficult to detect by the naked eye under various natural conditions. Micro -plastic particles are mixed in seawater and distributed in all corners of the ocean. Some marine creatures eat these micro -plastic particles into their stomachs, causing physical pollution.

Some researchers have captured some fish in the Pacific Ocean. After anatomy observation, they found that there are micro -plastic particles in it. The accumulation of these micro -plastic particles in the organism can cause disease and shorten the life of the creature. And these fish and other marine creatures may also be captured and become human food. Human beings also suffered because of contaminated marine life.

Therefore, how to deal with non -degradable garbage through scientific methods has always been one of the key topics of the scientific research community. Recently, foreign researchers have found a way to upgrade plastic waste to more valuable products. They said that this helps to solve increasingly non -degradable garbage. This method can solve issues such as non -degradable trash threats and pollution of the ocean.

Xu Zhen, Pan Fuping, Sun Mengqi, Xu Jianjun, Nuwarik Eric Muna Nazha, Zakari Crovte, Cai Gangshu, (George), and Liu Guoliang in the United States " The College Journal published the paper on the "Class Dejinling and Upgrade of Polystyerene Waste as high -value chemicals".

It is reported that the transformation of plastic waste into high -value chemicals in polymer upgrades represents a very attractive way to solve the urgent environmental crisis. The existing upgrade recreation method is mediated by complex catalysts, and is challenged by the low selectivity and economic value of the product, which weakens practicality. Their papers reveal a high-efficiency and elastic degradation and upgrading method (DEG-UP) method, and upgraded the recycling plastic waste by using a wise-selected grade reaction instead of complex, precise and expensive catalysts.

"We found that the degradation-upgrade recreation method effectively upgraded polyzhenylene to high-value products, including diexyl nigne, 2-2-diode ethane or 4-oxygen-4-benzene Kidine. Technical and economic analysis shows that high profitability and sensitivity to market fluctuations are small. "The paper mentioned.

Specifically, researchers who published papers use ultraviolet rays as energy and aluminum chloride as catalysts to break down the chemical structure of polystyrene. They then use the same catalyst to add dichloromethane -a transparent liquid that is usually used as a solvent to generate diabenenerum. Diabenzyne narne is a chemical that is commonly used in spices and drugs. Its value is 10 times that of polystyrene. Therefore, the transformation technology produces economic benefits to reduce the waste of polystyrene.

Author: Mai Wanhua

Edit: Zhao Dina

Review: Gong Zimo

Vision: Long Hao

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