Treatment process of slag from garbage factory

Treatment process of slag from garbage factory

With the continuous development of urbanization, the problem of garbage is becoming increasingly prominent, and garbage treatment has become an important issue in urban management. Garbage factories are one of the important facilities for waste treatment, but the slag generated by garbage factories is a challenge. Slag refers to the solid waste left after Incineration, which will pollute the environment if not treated. So, how should the slag from the garbage factory be treated? This article will introduce you to the slag treatment process of a garbage factory.

1、 The Harm of Waste Factory Slag

The slag of a garbage factory is a solid waste containing a large amount of toxic and harmful substances, including heavy metals, organic matter, inorganic salts, etc. If directly discharged into the environment, it will cause serious pollution to soil, water sources, air, etc., posing a threat to human health and the ecological environment. Therefore, the disposal of slag from garbage disposal plants is a very important task.

2、 Treatment process of slag from garbage factory

The slag treatment process of a garbage factory mainly includes two methods: physical treatment and chemical treatment.

1. Physical processing

Physical treatment refers to the treatment of waste plant slag through physical means, mainly including screening, magnetic separation, gravity separation, and other methods.

(1) Screening

Screening refers to the separation of waste plant slag according to its particle size, usually using equipment such as vibrating screens and rotary screens for screening. Sieving can separate large blocks of material from the slag for subsequent treatment.

(2) Magnetic separation

Magnetic separation refers to the use of magnetic force to separate ferrous substances in slag. Magnetic separation equipment mainly includes magnetic separators, magnetic separators, etc. Magnetic separation can separate the iron substances in the slag for subsequent treatment.

(3) Reselection

Gravity separation refers to the use of gravity to separate substances of different densities in slag. The re selection equipment mainly includes re selection machines, centrifuges, etc. Re-selection can separate substances with different densities from the slag, making it easier for subsequent treatment.

2. Chemical treatment

Chemical treatment refers to the treatment of waste plant slag through chemical reactions, mainly including methods such as stabilization and solidification.

(1) Stabilization

stabilization refers to the transformation of harmful substances in slag into stable and non volatile substances. The stabilization methods mainly include cement solidification, thermal stabilization, etc. Stabilization can effectively reduce the content of harmful substances in slag and reduce environmental pollution.

(2) Curing

Solidification refers to mixing slag with other materials to form a hard solid system. The solidification methods mainly include cement solidification, thermal solidification, etc. Solidification can make slag stable, less prone to emitting harmful substances, and reduce environmental pollution.

3、 Precautions for slag treatment in garbage factories

When dealing with slag from a garbage factory, the following points need to be noted:

1. Before treatment, it is necessary to classify the slag and adopt different treatment methods based on different components.

2. The processing process requires strict control of parameters such as temperature and time to ensure the processing effect.

3. After treatment, testing is required to ensure that the treated slag meets environmental requirements.

4、 Summary

The treatment of slag from garbage disposal plants is a very important task that requires a combination of physical and chemical treatment. During the processing, attention should be paid to issues such as classification, control parameters, and detection. Through scientific treatment methods, it is possible to effectively reduce the pollution caused by waste factory slag to the environment and protect the ecological environment.

Treatment process of slag from garbage factory