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An economic development model characterized by resource conservation and recycling, in harmony with the environment. Emphasis is placed on organizing economic activities into a feedback-based process of "resources, products, and renewable resources".
It is characterized by low exploitation, high utilization, and low emissions. All material and energy resources can be used rationally and sustainably in this ongoing economic cycle in order to reduce the impact of economic activities on the natural environment to the smallest possible extent.
The germ of the idea of circular economy was born in the United States in the 60s of the 20th century. The term "circular economy" appeared in China in the mid-90s, and the academic community has defined it from different perspectives such as comprehensive utilization of resources, environmental protection, technological paradigm, economic form and growth mode, and broad and narrow perspectives.
At present, the society is generally implemented is the country's definition of circular economy: "Circular economy is a kind of efficient use and recycling of resources as the core, with the principle of 'reduction, reuse, recycling', with low consumption, low emission, high efficiency as the basic characteristics, in line with the concept of sustainable development of the economic growth model, is a fundamental change to the traditional growth model of 'mass production, mass consumption, large amount of waste'. ”
This definition not only points out the core, principles and characteristics of the circular economy, but also points out that the circular economy is an economic growth model in line with the concept of sustainable development, grasps the crux of the current relative shortage of resources in China and a large amount of consumption, and has urgent practical significance to solve the bottleneck constraints of China's resources on economic development.
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"Circular economy" is the abbreviation of closed-loop flow economy of materials, which refers to the cascade and closed-circuit recycling of materials and energy, which is manifested as low pollution emissions or even zero pollution emissions in terms of environment. The model of circular economy can be simplified to: the recycling mode of resources, products and renewable resources.
The traditional economy is characterized by two highs and one low, that is, high consumption, high pollution, and low utilization, while the circular economy is characterized by two lows and two highs, that is, low consumption, low pollution, high utilization rate and high cycle rate, and its essence is ecological economy.
Therefore, we know that the important content of the circular economy is "waste recycling"!!
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The important principles regarding the circular economy are as follows:
The basic principle of the circular economy is the "3R principle", which refers to the principle of reduce, reuse and recyce. The details are as follows:
1. The principle of reduce: it is required to use as few raw materials and energy as possible to complete the established production goals and consumption purposes. 2. The principle of reuse: the products and packaging materials produced are required to be reused.
3. The principle of recycle: the product is required to be able to be re-turned into a resource that can be used after completing the use function, and it is also required that the leftovers, intermediate materials and other materials generated in the production process can also be returned to the production process or used separately.
Circular economy, also known as "resource recycling economy", is an economic growth model with the efficient use and recycling of resources as the core, the principle of "reduction, reuse, and recycling", and the basic characteristics of low consumption, low emission, and high efficiency, which is in line with the concept of sustainable development.
Eliminate cavity waste and pollution
The first principle of the circular economy is to understand that waste and pollution are largely a result of the way we design things, and to look for new and innovative ways to eliminate these negative effects.
Approximately 80% of environmental impacts are identified during the design phase, which means that transitioning the area to a larger cycle can have a magnified impact throughout the material cycle. By changing the mindset to treat waste as a design flaw and utilizing new materials and technologies, we can ensure that no waste and pollution are generated in the first place.
A striking example of this circular thinking is the shift to reusable alternatives to single-use items such as coffee cups, water bottles, plastic straws, and cutlery. By designing easy-to-transport, reusable staggering alternatives, we've reduced our reliance on single-use products, which is a huge contributor to waste in a linear economy.
Maintain the use of products and materials
The second principle of the circular economy is based on a simple premise: we can't waste resources all the time. We can design products and components so that they can be reused, repaired, and remanufactured.
But making things last longer is only part of the solution, we also need to be able to put the resources that were used to create them back into the system so they don't end up in landfills. This is especially true for short-lived materials and resources such as food and packaging, which can cause a lot of waste if they are not properly resourced.
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Circular economy refers to an economic model that achieves economic, social and environmental sustainable development through the organic combination of the use, reuse and environmental protection of resources and products. The circular economy brings several benefits:
1.Increased resource efficiency: One of the biggest benefits of the circular economy is improved resource efficiency.
By realizing the concept shift from "destroy-consume-waste" to "reduce-reuse-**", the circular economy can effectively reduce the waste and loss of resources.
2.Reducing environmental pollution: A circular economy can reduce environmental pollution.
By adopting the method of "clean production" and resource reuse in the production process, the circular economy can not only reduce the emission of pollutants, but also reduce the accumulation of waste and reduce the risk of environmental pollution.
3.Foster innovation: The circular economy fosters innovation.
Due to the shift in economic models, the circular economy requires production and consumer efforts to achieve sustainability. This requires companies and companies to adopt innovative ways to promote sustainable economic development, thereby further improving the environment and promoting social development.
4.Increase a certain level of economic growth: A circular economy can increase a certain level of economic growth. By focusing on the reuse and reuse of old items, jobs can be created and local economic development can be promoted.
In conclusion, the circular economy brings many benefits, including improving resource efficiency, reducing environmental pollution, promoting innovation, and increasing economic growth. It can not only bring a more sustainable ecological environment to the future of mankind, but also promote social and economic development.
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First of all, at the source of production - the input end, we should fully consider saving resources, improving the utilization rate of resources per unit of production products, and preventing and reducing waste; The second is to make the best use of pollutants that cannot be reduced at the source and packaging waste and used goods that have been used by consumers, so that they can return to the economic cycle.
Only when avoiding generation and utilization are not possible, is it allowed to environmentally sound treatment of the final waste. The highest goal of the coordination of environment and development is to achieve a qualitative leap from end-of-line treatment to source control, from waste utilization to waste reduction, and to fundamentally reduce the consumption of natural resources, thereby reducing the pollution of environmental load.
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Circulation, as the name suggests, can form a closed loop with each link involved.
Circular economy, the more specific connotation is the resource recycling economy. For example, in the traditional economic model, from manufacturing, transportation, terminal consumption to the final disposal of Bu Bixiang is often a linear economy, in this process, there are constantly resources that can be reused are wasted. Under the circular economy model, not only the resources generated in the production and consumption process are maximized, but also the resources that were originally discarded are re-added to the link after transformation.
At present, there is a large part of the circular economy is the recycling of agricultural resources, such as the recycling of urban and rural organic wastes such as huge amounts of straw produced by farmland planting, forestry pruned branches, aquatic weeds in rivers, and common domestic garbage (such as tail vegetables, mushroom residues and other kitchen waste).
In June 2023, China's first exhibition with the theme of "carbon neutrality" - Shanghai International Carbon Neutrality Expo was held at the National Exhibition and Convention Center in Shanghai. As one of the six major sections of the exhibition, the circular economy in the carbon neutral exhibition mainly includes two aspects: 1. Circular transformation; 2. Reuse of recycled agricultural resources (solid waste, domestic waste, construction waste).
Circular agriculture includes three specific categories: agricultural product production and processing, regenerative agriculture technology, and sustainable farming technology.
As the county with the largest flue-cured tobacco planting scale in Guizhou Province, Weining Autonomous County has a perennial tobacco planting area of about 220,000 mu and more than 10,000 households per year. The use of cigarette sticks has always been a big problem, coupled with the use of pesticides and fertilizers in the past, resulting in serious cigarette floor knots.
As early as 2018, in Weining County, Bijie City, Guizhou Province, Shike Biotechnology and Bijie Tobacco Company jointly built a circular economy demonstration project in the tobacco industry, covering an area of 50 acres, to solve the problems of resource utilization of waste such as tobacco stalks and tobacco stems, poor tobacco soil and continuous cropping obstacles.
The project was put into use in January 2018, with a total of 500,000 tons of tobacco waste, 200,000 tons of tobacco charcoal-based fertilizer, and more than 1 million mu of soil for tobacco cultivation, driving the tobacco industry to increase production and income by more than 500 million yuan.
Shike Biotech's Guizhou Tobacco Industry Circular Economy Project is a very good circular economy demonstration case in the agricultural field.
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Circular celery economy refers to the process of production and consumption, to maximize the use of resources and energy, reduce the emission of waste and leakage pollutants, and to achieve the recycling of resources.
** Tricarboxylic acid cycle, because the main intermediate metabolites in this cycle are organic acids containing three carboxyl groups; Since the first product in the apparatus is citric acid, it is also called the citric acid cycle; Or named the Krebs cycle after the discoverer Hans Krebs. The enzymes involved in the reaction process, except for succinate dehydrogenase, which are located outside the inner mitochondrial membrane, are located in the mitochondrial matrix. >>>More
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