Municipal solid waste slag treatment

Municipal solid waste slag treatment

With the acceleration of urbanization, the treatment of urban household waste has become an increasingly serious problem. Among them, slag treatment is one of the important links in garbage treatment. This article will introduce the relevant knowledge of urban household waste slag treatment, including the definition, classification, and treatment methods of slag.

1、 Definition of slag

Slag refers to the non-metallic substances generated in the furnace, generally referring to the solid waste generated during smelting, smelting, and other processes. The composition and properties of slag are related to factors such as raw materials, furnace type, and process. Some slag contains harmful substances, posing a threat to the environment and human health.

2、 Classification of slag

Slag can be classified based on its source, composition, and use. According to their sources, they are divided into metallurgical slag, chemical slag, power slag, household waste slag, etc. According to composition, it is divided into steel slag, iron slag, furnace stone slag, slag, etc. It is divided into construction slag, roadbed slag, cement slag, etc. according to its purpose.

3、 Treatment methods for urban household waste slag

Municipal solid waste slag refers to the slag generated from the incineration of domestic Incineration. There are several main methods for treating urban household waste slag:

1. Landfill

Landfill is currently one of the main methods for treating municipal solid waste slag. Landfill is the process of mixing garbage and slag and burying them underground to make them come into contact with the soil, in order to reduce the volume of garbage and reduce the emission of harmful substances. However, landfill will occupy a large amount of land resources and cause pollution to groundwater and soil.

2. Incineration

Incineration is a method of burning garbage and slag at high temperatures to turn them into ashes. Incineration can effectively reduce the volume of garbage and the emission of harmful substances, but it generates a large amount of carbon dioxide and other harmful substances, causing pollution to the environment.

3. Recycling

Recycling is a method of recovering and utilizing recyclable substances in slag. For example, steel slag can be used to produce cement and roadbed materials, while slag can be used to produce cement and concrete. Recycling can reduce the volume of garbage while also saving resources.

4、 Conclusion

The treatment of urban household waste slag is a complex problem that requires comprehensive consideration of multiple factors. When dealing with urban household waste slag, environmental protection, energy conservation, and resource utilization methods should be adopted as much as possible to protect the environment and save resources.

Municipal solid waste slag treatment