The significance and equipment of urban garbage screening and treatment

The screening and treatment of urban garbage is of great significance for resource recovery, environmental pollution control, and ecological environment quality improvement. Through fine screening, effective resource recovery and reuse can be achieved, reducing waste landfill volume, protecting land resources, and promoting the development of circular economy. The screening and treatment of urban garbage is one of the key factors in building green cities and achieving ecological civilization construction.

Waste treatment equipment produced by Zhongcheng

The screening and treatment of urban waste has important multiple meanings, mainly reflected in the following aspects:

1. Resource recycling and reuse:

Garbage screening is the initial stage of garbage classification, which can separate recyclable materials such as metals, glass, plastics, paper, wood, etc. from the garbage. These materials can be reused after treatment, which helps to protect natural resources.

2. Reduce environmental pollution:

By carefully screening, harmful waste (such as used batteries and electronic waste) can be separated from other waste to avoid the leakage of harmful substances into soil and water sources, and reduce the risk of environmental pollution.

3. Reduce waste landfill volume:

After screening treatment, many recyclables and organic waste are recycled or decomposed, significantly reducing the total amount of waste that ultimately needs to be landfilled or incinerated, reducing the burden on landfills, and extending their operating time.

4. Protecting land resources:

Reducing the amount of land required for landfilling can avoid excessive consumption of land resources. Meanwhile, classified inorganic materials can be used to produce recycled building materials, replacing natural resources and indirectly protecting land resources.

5. Promote the recycling of economic resources:

Garbage classification can promote the development of circular economy and establish a closed-loop system of "resources products renewable resources", which is in line with the concept of sustainable development.

6. Improving the quality of the ecological environment:

After sorting the organic components in household waste, they can be composted or anaerobic digested for conversion into fertilizer or biomass fuel, which not only solves the problem of organic waste treatment, but also helps to improve soil and optimize the ecological environment.

Overall, the classification and treatment of urban waste is not only an important method to solve the problem of urban solid waste, but also one of the key factors in building green cities and promoting ecological civilization construction.

Solid waste treatment equipment can generally be divided into the following types based on different treatment methods and technical requirements:

1. Crusher equipment includes coarse crusher and fine crusher, mainly used to crush large solid waste into smaller particles for subsequent processing and recycling.

2. Screening machinery: such as drum screen, used to classify and screen waste based on its size, shape, and density, achieving waste classification and separation.

3. Transmission equipment: including conveyor belts, spiral conveyors, etc., used to transfer waste from one step to another during the processing.

4. Garbage compactor: Solid waste packaging machine, which can compress and package solid waste, reduce volume, facilitate storage and transportation, and also help with resource recycling and utilization.

5. Material sorting equipment, such as magnetic separators and wind separators, use magnetic or aerodynamic principles to separate metals, lightweight materials, etc. from mixed waste.

6. Incineration equipment: Incinerators are used to incinerate a portion of organic solid waste at high temperatures, in order to achieve the goal of reduction and recovery of heat energy.

7. Resource recycling equipment: specialized equipment used for handling specific solid waste, such as construction waste, used tires, and metal waste, such as steel bar strippers, wood sorting equipment, etc.

With the acceleration of urban construction and renovation, the pollution caused by construction waste and the phenomenon of surrounding cities are becoming increasingly prominent. As of 2020, the total amount of construction waste in China reached 2.6 billion tons. However, in terms of resource recycling, China's construction waste recycling rate is less than 10%, far lower than 90% in European and American countries and 95% in Japan and South Korea. At present, the treatment methods are still stuck in the extensive landfill and stacking stage. Faced with the serious problem of construction waste surrounding the city, proper disposal and reuse have become an urgent problem to be solved in urban development. China's Solid Waste Pollution Prevention and Control Law was officially implemented on September 1, 2020, making the treatment, resource utilization, and environmental protection of construction waste gradually the focus of investment.

Solid waste treatment industry chain: In terms of the upstream and downstream of the hazardous waste treatment industry chain, the upstream of solid waste treatment mainly involves the manufacturing of various solid waste treatment equipment and transportation equipment; The midstream mainly includes the treatment of various solid waste. At present, solid waste treatment technologies in China are mainly divided into three categories: resource recycling, incineration, and landfill.

Zhongcheng Environmental Protection Equipment Co., Ltd. is a technology-based enterprise that focuses on the research and development, manufacturing, and sales of garbage classification and treatment equipment. The solid waste treatment equipment produced by the company includes garbage drum screens, bounce screens, relaxation screens, bar screens, garbage air separators, crushers, etc. The company focuses on this industry and has rich experience. The company has established a comprehensive quality inspection system with advanced equipment and exquisite craftsmanship as its core, ensuring product quality and striving to provide customers with satisfactory products.