He walked into the room represented by Professor Tan Tan from Nankai University and spread out a large amount of information. As he looked through, he pressed the calculator on his hand. Today, Zhu Tan did not go out in the morning. He told reporters: "We have to send a good account."

—— China has more than 15 million tons of packaging waste per year, of which one-third is waste plastics; and the annual demand for plastics in China is approximately 11 million tons, with an annual output of only 6 million tons of plastics, and a gap of 5 million tons needed to be imported. .

- 120 tons of waste cans can recover 1 ton of tin, which is equivalent to mining 400 tons of ore, but also does not include operating expenses.

- The use of 1 million tons of waste food processed into feed can save 360,000 tons of feed grain.

Zhu Tan is counting pen resource recycling accounts. He said that more than one-third of urban waste is waste paper, and more than one-third of it is waste food, in addition to black and non-ferrous metals, plastics, glass, fabrics, and other substances. The city garbage looks like a broken basket. It is actually a treasure box! The waste paper contained therein is a recycled raw material for papermaking. Processing and utilization of 1 million tons of waste paper can save 600 square kilometers of forest from cutting down.

Zhu Tan said that the total cost of garbage collection, sorting, and enrichment, together, is several times lower than the cost of initial material extraction and enrichment, which can save natural resources and avoid environmental pollution. In recent years, many developed countries in the world have vigorously carried out the research and practice of recycling components from garbage. At present, the recycling rate of waste plastics in Germany is 27% and in Japan it is 26%. In the 1980s, the United States focused on the implementation of biodegradable plastics. Now, through the Recycling of Packaging Waste Act, the recycling rate is required to reach 50-65%. At present, the recycling rate of waste packaging in China is still less than 10%.

It is understood that Germany promulgated the "Waste Act" 30 years ago, and later formulated the "Circular Economy and Waste Avoidance Act," and took the lead in enacting legislation towards a circular economy and society. As a late industrialized country, Japan has twice tasted the bitter fruits of environmental destruction and pollution. In the 1990s, Japan put forward the slogan "Environmentally Building the Country," and stipulated a series of laws and regulations such as waste disposal, utilization of renewable resources, recycling of packaging containers and household appliances, and management of chemical substances. The United States promulgated the "Resources Protection and Recovery Act" in 1976, which played a decisive role in the management of solid waste.

Zhu Tan urged: The establishment and improvement of the "Resources and Utilization Law" as soon as possible is of great significance to the realization of China's sustainable development strategy. At this stage, China urgently needs to set about and establish a resource-based system so as to form a continuous cycle of “production-consumption-waste-reproduction” and avoid the old road of developed countries. “There is legislation to turn waste into treasure, and 15 million tons of waste packaging can't be 'throw' unless it's out!”