Utilization of residual slag from household waste power generation

With the acceleration of urbanization, the amount of household waste is also increasing year by year, and the treatment of waste has always been one of the difficulties in urban management. Domestic waste power generation is a relatively mature treatment method, but in this process, a large amount of slag will be generated. If not effectively utilized, it will cause serious pollution to the environment. This article will introduce the utilization method of residual slag from household waste power generation.

1、 Characteristics of residual slag from household waste power generation

The residual slag of domestic waste power generation mainly refers to the ash and dregs generated in the process of domestic Incineration power generation, and its main characteristics are as follows:

1. Slag contains a large amount of inorganic substances, such as oxides, silicates, chlorides, etc., which have a certain degree of harm to the environment.

2. The slag also contains a small amount of organic substances, such as petroleum and rubber, which pose greater harm to the environment.

3. The Granularity of slag is relatively large, generally 0.5-10mm, which is difficult to be directly applied to soil improvement and other fields.

2、 Utilization method of residual slag from household waste power generation

1. Landfill of slag

The landfill of slag is currently a common treatment method, but this method can cause pollution to the land and also waste resources. Therefore, the landfill of slag can only be used as an emergency treatment method.

2. Recycling and utilization of slag

The recycling and utilization of slag is currently a mainstream treatment method, mainly including the following:

(1) Cement production

Slag contains a large amount of inorganic substances and can be used as raw materials for cement production. After treatment, slag can be used as an auxiliary material in cement production, which can improve the strength, durability, and crack resistance of cement.

(2) Pavement laying

Slag can be used as a raw material for road laying, which can improve the durability and crack resistance of the road surface. After treatment, slag can be used as the foundation material for road laying or as a road covering material.

(3) Brick manufacturing

Slag can be used as a raw material for brick manufacturing, which can improve the strength and durability of bricks. After treatment, slag can be used as an auxiliary material in brick manufacturing, which can improve the quality and service life of bricks.

3、 Prospects for the utilization of residual slag from household waste power generation

The utilization prospects of residual slag from household waste power generation are very broad, which can be applied in fields such as cement production, road laying, brick manufacturing, etc. At the same time, with the improvement of environmental awareness, people are paying more and more attention to the treatment of garbage, which will provide a broader market for the utilization of residual slag from household waste power generation.

4、 Conclusion

Domestic waste power generation is a relatively mature treatment method, but in this process, a large amount of slag will be generated. If not effectively utilized, it will cause serious pollution to the environment. Therefore, the utilization of residual slag from household waste power generation is a very important work, which can effectively reduce environmental pollution caused by waste, and also contribute to the development of society and economy.