Circular Economy Park, Yi'an District, Tongling City, Anhui Province

Circular Economy Park

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Circular economy is the abbreviation of closing materials cycle economy. It reconstructs the economic system according to the law of material circulation and energy flow of the natural ecosystem, makes the economic system harmoniously integrate into the process of material circulation of the natural ecosystem, and establishes a new form of economy. Circular economy is essentially an ecological economy, which requires the use of ecological laws to guide the economic activities of human society.

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In late July 2009, Beijing authorities announced that four circular economic parks will be built in Beijing, and Beijing will abandon the industrialization road of waste treatment, making it clear for the first time that waste treatment is a "public welfare undertaking". In the future, the main treatment method is incineration. Two kilometers around the circular economy Ecological Park, residential areas are not planned and constructed, and existing villages are demolished. The construction of the first circular economy park will be started in 2009. Zhou Zhengyu, Deputy Secretary General of Beijing municipal government, said that another consensus reached in Beijing on waste disposal is to adjust the planning and carry out the site selection of garbage sites 50 years in advance. According to the plan, it is preliminarily determined to build four circular economic parks in four directions in Beijing, East, West, North and south. Each park covers an area of 4-6 square kilometers, with a daily treatment capacity of 5000-7000 tons, and has served for more than 50 years, so as to completely solve the garbage problem in Beijing.

Background

In 2008, the daily output of garbage in Beijing was 18000 tons, but the treatment capacity was only 11000 tons, so there was no place for a large amount of garbage. Beijing is facing a new round of garbage siege. At the two sessions in early 2009, 283 deputies put forward a proposal on garbage disposal, pointing directly to the crisis situation and predicament of garbage disposal in Beijing. Dozens of CPPCC members also put forward the same proposal. Since April 2009, the Standing Committee of the Municipal People's Congress has organized hundreds of deputies to intensively investigate the current situation of garbage disposal in Beijing, and formed supervision opinions on the motion. On July 25, 2009, mayor Huang Wei reported to the 12th meeting of the Standing Committee of the 13th Municipal People's Congress on the handling of the proposal on "improving the modernization level of garbage collection and treatment, building a livable city" and strengthening garbage treatment. The relevant person in charge of the Standing Committee of the National People's Congress (NPC) said in the report that Beijing has reached two consensus on waste disposal: one is to position waste disposal as a public welfare undertaking concerned about people's livelihood and increase government investment; the other is to determine a comprehensive treatment method based on incineration, and initially determine the construction of four circular economic parks in four directions in Beijing.

capital

Internationally, most countries regard circular economic parks as public welfare undertakings. According to Wang Weiping, a waste treatment expert and senior engineer of municipal appearance Committee, Beijing had a policy shift more than 10 years ago to promote the industrialization of waste treatment. But more than 10 years later, from the results, all aspects are not satisfied. response: within six years, 10 billion yuan will be invested in waste treatment, and Beijing will give up the industrialization of waste treatment and make clear the orientation of other public welfare undertakings. By 2015, Beijing will build and rebuild 40 waste treatment facilities, with a direct investment of 10 billion yuan (excluding demolition and other expenses).

layout

It is preliminarily determined to build four circular economic parks in the four directions of East, West, North and South in Beijing. Each park covers an area of 4-6 square kilometers, with a daily processing capacity of 5000-7000 tons, and has served for more than 50 years, so as to completely solve the garbage problem in Beijing. Two kilometers around the circular economy Ecological Park, residential areas are not planned and constructed, and existing villages are demolished. The first circular economy park was launched in 2009. In the future, the construction department should be encouraged to achieve the goal of "site selection, construction and operation first" to avoid conflicts.

Recycling

For Beijing, a city with scarce land resources, landfill is not cost-effective. This method also leads to a lot of waste. For example, the calorific value of garbage in Beijing is very high, which is almost equivalent to inferior coal. All the heat is buried underground, and many available resources, such as metal and glass, are also buried. Beijing will greatly increase the proportion of waste incineration to get rid of the dilemma of waste treatment. After years of development, the technology of waste incineration has been very mature. Therefore, it is necessary to greatly increase the proportion of waste incineration as the best choice and fundamental solution to get rid of the dilemma of waste treatment, and vigorously promote it. Zhou Zhengyu, Deputy Secretary General of the municipal government, said that according to the current situation, Beijing has reached a consensus on waste treatment and determined a comprehensive treatment method focusing on incineration. According to the plan, the proportion of incineration in Beijing will be increased to 20% by 2012 and 40% by 2015.

monitor

The monitoring data of all waste disposal sites will be open to the public. This time, the municipal government's report also clearly pointed out that waste enterprises should disclose relevant waste disposal data and information to the public, so as to facilitate social supervision, eliminate some people's doubts about waste incineration and seek support. The day before yesterday, Chen Ling, deputy director of the municipal appearance Committee, promised to publish the list of the first batch of open garbage disposal sites. In the future, the monitoring data of all garbage disposal sites, including incinerators, will be made public. Huang Wei said that in order to establish an information disclosure system on the amount of domestic waste and the operation of surrounding facilities, facilities and districts and counties should establish a communication mechanism with the surrounding people to disclose relevant information. Representative Zou Xiaomei has always advocated that air monitoring points should be set up around the dump. In view of Miss Li's point of view, she said that real-time monitoring data must be made public. A display screen should be built outside the incineration plant to display the monitoring data all the time. You can see that "the sooner this measure is, the better, the sooner the better", because now there is only one incineration plant in operation, which has a strong demonstration effect. "Otherwise, I'm afraid new incineration plants will encounter difficulties in the future The dilemma is similar to that of Liulitun.

con side

Burning has its Achilles' heel: dioxins. Zhao Zhangyuan, a researcher at the Chinese Academy of Environmental Sciences, firmly opposes waste incineration. He believes that incineration has a fatal weakness, dioxins, which can not be avoided even with the best technology and equipment. "Moreover, the operation standard of China's garbage disposal sites is not strict and often has loopholes.". Zhao Zhangyuan believes that the places that require more incineration projects are mostly held by interest groups, because these people form an interest chain with foreign incinerator suppliers and bring technologies that are banned by the United States and controversial in Japan to China.

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In response to Zhao Zhangyuan's point of view, Wang Weiping, senior engineer of Beijing Municipal Appearance Commission, said: Beijing can implement EU standards. Some experts are not experts and have been misleading the public. Wang Weiping explained that dioxin poisoning first occurred in Tokyo, Japan in 1992. After more than 10 years of efforts, there is a mature technology, that is, to keep the incinerator temperature above 820 ℃, so that dioxin will not be produced, or it will drop to below 320 ℃ within 3 seconds, and dioxin secondary synthesis will not be produced. Wang Weiping believes that 90% of the land can be saved by using incineration technology. In addition, 10% of the land buried can also be reused. Technically speaking, dioxins can be controlled, and the key lies in implementation. Nowadays, incineration is used in many countries and regions of Japan and the European Union, and it is also promoted in Shanghai, Shenzhen and other cities. Beijing can implement the same or even more stringent standards as the European Union.

Chinese PinYin : An Hui Sheng Tong Ling Shi Yi An Qu Xun Huan Jing Ji Yuan