Slag Treatment Technology of Incineration

Incineration is a common waste treatment method, which can burn garbage into ash and slag. Slag is a type of solid waste that typically contains both metallic and non-metallic substances and has a certain degree of harm. Therefore, the slag treatment technology of Incineration is very important. This paper will introduce several effective slag treatment technologies for Incineration.

1、 Slag recovery

Slag recovery is an effective slag treatment technology. It can separate the metallic and non-metallic substances in the slag, making it fully utilized. Slag recovery can be divided into two methods: physical recovery and chemical recovery.

Physical recovery is the separation of metallic and non-metallic substances from slag through physical methods. Common physical recovery methods include magnetic separation, air separation, and screening. Magnetic separation is the use of magnetic substances to separate metal substances from the slag, while air separation is the use of airflow to separate light substances from the slag, and screening is the use of a sieve to separate substances of different particle sizes from the slag.

Chemical recovery is the separation of metallic and non-metallic substances from slag through chemical methods. Common chemical recovery methods include leaching, dissolution, and reduction. The leaching method is to immerse the slag in an acidic or alkaline solution to dissolve the metal substances in it. The dissolution method is to dissolve the slag in an acidic or alkaline solution to dissolve the metal substances in it. The reduction method is to reduce the metal substances in the slag to pure metals.

2、 Slag landfill

Slag landfill is a common slag treatment technology. It can bury the slag underground, so that it no longer poses a threat to the environment. Slag landfill requires selecting a suitable landfill site and taking certain anti-seepage measures to prevent harmful substances in the slag from seeping into groundwater.

III. Slag solidification

Slag solidification is a treatment technology that converts slag into harmless substances. It can mix the slag with the curing agent to form a hard solid to prevent the release of harmful substances in the slag. Commonly used curing agents include cement, gypsum, and silicate.

4、 Slag melting

Slag melting is a treatment technique that converts slag into glassy substances. It can melt the slag to form a substance similar to glass, to prevent the release of harmful substances in the slag. The melting of slag requires the use of high-temperature melting technology, usually at a high temperature of over 1000 ℃.

In a word, the slag treatment technology of Incineration is very important. Slag recovery, slag landfill, slag solidification, and slag melting are common slag treatment technologies, each of which has its unique advantages and disadvantages. In practical applications, it is necessary to choose appropriate treatment techniques based on specific circumstances to minimize the harm of slag to the environment.