Utilization of slag from Incineration power generation

With the acceleration of urbanization, the problem of garbage is becoming increasingly serious. The traditional landfill treatment method not only occupies a large amount of land resources, but also causes pollution to the environment. Therefore, Incineration power generation has gradually become a more environmentally friendly treatment method. However, Incineration power generation will produce a large number of slag, how to deal with these slag has become an urgent problem. This paper will introduce the utilization method of Incineration power generation slag.

1、 Characteristics of slag from Incineration power generation

Incineration power generation slag refers to the solid waste generated in the process of Incineration power generation. Its main components are inorganic substances, such as aluminum oxide, Calcium oxide, magnesium oxide, etc. Incineration power generation slag has the following characteristics:

1. Large volume: the slag of Incineration power generation is large, generally larger than the garbage volume before Incineration.

2. High content of heavy metals: Incineration power generation slag contains a large number of heavy metals, such as lead, cadmium, mercury, etc. These heavy metals are harmful to the environment and human health.

3. Stable chemical property: the chemical property of Incineration power generation slag is relatively stable, not easy to decompose, and not easy to react with other substances.

II. Utilization method of slag from Incineration power generation

1. Landfill and utilization of Incineration power generation slag

Landfill is the main treatment method of Incineration power generation slag at present. The slag from Incineration power generation furnace shall be buried in the designated site and covered with soil to form a covering layer of certain thickness. Landfill treatment can effectively reduce the volume of Incineration power generation slag, but at the same time, it will also occupy a large number of land resources, and will pollute groundwater and soil.

2. Recycling of Incineration power generation slag

The slag of Incineration power generation contains a large number of inorganic substances, which can be effectively utilized through recycling. At present, the recycling of Incineration power generation slag mainly includes the following aspects:

(1) Cement production: Incineration power generation slag contains a large amount of Calcium oxide, alumina and other substances, which can be used as raw materials for cement production.

(2) Road construction: Incineration power generation slag can be used as basic materials in road construction to fill subgrade and pavement.

(3) Brick production: Incineration power generation slag can be used as raw material for brick production to produce various building materials.

(4) Filling material: Incineration power generation slag can be used as filling material to fill some underground projects and water conservancy projects.

III. Problems in slag utilization of Incineration power generation

Although Incineration power generation slag has high utilization value, there are also some problems in its utilization process:

1. Heavy metal pollution: There are a lot of heavy metals in the slag of Incineration power generation, which will cause certain harm to the environment and human health.

2. Technical difficulty: the recycling technology of Incineration power generation slag is relatively complex, requiring a large amount of manpower, material resources and financial resources.

3. Inadequate market demand: At present, the market demand for the recycling of Incineration power generation slag is insufficient, leading to the difficulty of its utilization.

4、 Conclusion

In conclusion, the utilization of slag from Incineration power generation is an important environmental protection work. The recycling of Incineration power generation slag can effectively reduce the volume of Incineration power generation slag, and can also contribute to social and economic development. However, in the process of using slag from Incineration power generation, we should also pay attention to the existing problems and take corresponding measures to solve them.