How to handle the slag from garbage power generation

How to handle the slag from garbage power generation

With the acceleration of urbanization, the problem of garbage is becoming increasingly serious. In order to solve the problem of garbage, many cities have started to use garbage to generate electricity for treatment. Although garbage power generation can effectively reduce the amount of garbage, it will generate a large amount of slag. So, how to deal with the slag from garbage power generation? This article will provide you with a detailed introduction.

1. Composition of slag

Firstly, we need to understand the composition of the slag. Slag refers to a type of solid waste formed during the garbage power generation process due to non combustible substances and combustion products in the garbage. The composition of slag mainly includes inorganic matter, organic matter, heavy metal, etc.

2. Treatment method of slag

At present, the commonly used slag treatment methods mainly include the following:

2.1 Landfill

Landfill is a method of burying slag underground. Landfill can effectively reduce the volume of slag, but it will occupy a large amount of land resources and easily cause environmental pollution.

2.2 Cement solidification

cement solidification is a method of mixing slag and cement to solidify into blocks. Cement solidification can effectively reduce the volume of slag and convert it into a resource that can be used as building materials, but it requires a large amount of cement and energy, resulting in higher costs.

2.3 Phosphoric acid curing

phosphoric acid solidification is a method of mixing slag and phosphoric acid to solidify into blocks. Phosphoric acid solidification can effectively reduce the volume of slag and convert it into a resource that can be used as building materials, but it requires a large amount of phosphoric acid and energy, resulting in higher costs.

2.4 Heat treatment

Heat treatment is a method of high-temperature treatment of slag. Heat treatment can decompose and transform organic matter and heavy metals in the slag, while also stabilizing the inorganic matter in the slag. However, it requires a large amount of energy and equipment, and the cost is high.

3. Conclusion

In summary, we can use methods such as landfill, cement solidification, phosphoric acid solidification, and heat treatment to address the issue of slag treatment in waste power generation. Different processing methods have different advantages and disadvantages, and they need to be selected based on the actual situation. We need to reduce the impact on the environment as much as possible while handling slag, and protect our Earth home.

How to handle the slag from garbage power generation