Analysis of circular economy effects in municipal waste separation and recovery

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With the in-depth development of urbanization in China in recent years, urban waste has surged, but due to the lag of garbage disposal capacity, urban environmental and social stability has been seriously affected. Based on this status quo, we should correctly understand the urgency and importance of scientific treatment of urban waste. However, in the entire urban waste treatment system, the classification and recycling of garbage is undoubtedly the primary link to promote source emission reduction.

First, the significance of urban waste separation and recycling based on the circular economy effect is undoubted, because the urban garbage pollution problem will involve the health of the majority of urban residents and the sustainable development of the city, it should be the focus of social attention. Then, we must adhere to the principle of resource, reduction and harmless treatment, and adopt scientific means to promote urban waste into a benign ecological cycle. Among them, the classification and recycling process is not only the basis and premise for realizing the recycling and utilization of waste resources, but also an important way to convert waste into renewable resources for recycling. At the same time, the classification and recycling treatment can effectively reduce the secondary pollution of garbage, which is the only way for the ecologicalization of waste.

(1) Urban garbage is also a resource

According to relevant survey statistics, the proportion of organic waste (such as leather garbage, kitchen garbage, etc.) in urban garbage is as high as 70%, and waste paper plastics and glass wastes account for 20% and 4% respectively. It is cloth, metal, etc. From this we can see that most of the materials in urban garbage have the possibility of being utilized by resources. If reasonable development and utilization are carried out, it is not impossible to turn waste into treasure. For example, 1t waste plastic can be refined to about 0.7t of gasoline or diesel by recycling. For example, 1t waste paper can be used for paper recycling of 800kg by recycling, which is equivalent to less than 20 trees or 4m3 of wood. Based on this, in a certain sense, urban garbage is actually a kind of "wealth" that is not valued by people, and it is a renewable resource that is inexhaustible and inexhaustible [1].

(II) The classification and recycling of municipal wastes The benefits of urban environment The classification and recycling of municipal wastes can effectively avoid the pollution of harmful components in the environment. By making full use of existing materials, it is possible to reduce the demand for natural resources and thus reduce the damage to the natural ecological balance. Specifically, garbage is more than just a resource (from an ecological perspective), it is the only growing resource on the planet (from a resource perspective). Therefore, in today's urban waste separation and recycling work, we should establish a corresponding resource-based enterprise, set up a special resource recycling enterprise or department to sort and recycle garbage (such as glass, waste plastics, paper, metal, radiation). Or toxic substances, etc., to effectively realize the resource utilization of urban garbage, thereby effectively reducing the pollution of urban garbage to water, soil and atmosphere, and protecting people's living environment.

Second, improve the urban waste separation and recycling work recommendations

(1) Clarifying the supervisory functions of the competent authorities

The competent department of local government construction should establish and improve the supervision and management system related to the classification and recycling of municipal wastes, and the environmental health department shall take the lead in supervising and managing the development of urban waste sorting, recycling and disposal in the region. Specifically, it is first necessary to promote the organic integration of the waste recycling department and the sanitation department, establish a division of labor and cooperation between the waste recycling department and the sanitation department, and implement a management operation mode in which the renewable resource industry and the sanitation industry are combined and complementary. Through the formulation of relevant systems, waste recycling and sanitation recycling are combined into one, all of which are included in the garbage separation and recycling system, and are uniformly managed by the sanitation department. Secondly, further improve the technical standards for municipal waste separation and treatment, and the relevant competent departments must also strictly monitor and manage the municipal waste separation and recovery work in strict accordance with various technical standards to ensure the effectiveness of the classification and recycling work.

(2) Further strengthen the operability of waste separation and recycling

Obviously, in order to solve the problem of garbage pollution, the first thing to do is to let the city residents realize the classification and recycling of garbage at the source of garbage collection, and then transport it to the sorting center for detailed division, and finally according to the garbage. The components are separately reused. Of course, in order to facilitate the operation of garbage sorting and recycling of urban residents, garbage bags of different colors can be used to separately contain different components of garbage, such as hazardous garbage, organic garbage and inorganic garbage. It should be noted here that due to the low bulk metal output rate and the extraordinary size and volume, it is difficult to recycle with other types of garbage, so a deadline (such as half a year, one year) should be delineated. Recycling treatment [2]. In addition, the type of recycling and brief instructions for use should be indicated on the trash can containing garbage bags to guide the residents to use them reasonably.

Third, the conclusion

In short, "garbage civilization" has always developed along with the development of human civilization, which constantly challenges the living conditions of human beings. In view of the current situation of urban garbage in China, we should adopt advanced technology and comprehensive treatment methods to vigorously promote the classification and recycling of urban waste, and increase publicity, continuously improve the environmental awareness of the whole people, and realize the harmlessness and reduction of urban garbage as soon as possible. Resourceization.

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