Waste slag treatment process

Waste slag treatment process

With the continuous acceleration of urbanization, the problem of garbage has become an urgent problem to be solved. Waste slag refers to the solid residue produced in the process of Incineration, and its treatment has always been a difficulty in the field of environmental protection. Here, we will introduce an advanced waste slag treatment process.

1、 Hazards of garbage and slag

Garbage slag is a type of solid waste left after incineration, which contains a large amount of heavy metals and harmful substances, causing great harm to the environment and human health. The heavy metals and harmful substances in garbage and slag can seep into soil and groundwater with wind and rain, causing serious impacts on the ecological environment. Moreover, heavy metals and harmful substances in garbage and slag can enter the human body through the food chain, posing a potential threat to human health.

2 II. Shortcomings of Traditional Waste Slag Treatment Process

The traditional waste slag treatment process mainly adopts landfill and composting methods, which have some shortcomings. Firstly, landfilling and composting methods require a significant amount of land resources, and can produce odors and leachate, causing pollution to the surrounding environment. Secondly, landfill and composting treatment methods cannot completely remove harmful substances from garbage and slag, and there are still potential environmental and health risks.

III. Advanced Waste Slag Treatment Process

The advanced waste slag treatment process adopts a physical and chemical treatment method, which can effectively remove harmful substances from the waste slag and achieve the goal of harmless treatment. The specific process flow is as follows:

1. Pre treatment of waste slag: Crush and classify the waste slag to remove large and recyclable substances.

2. Magnetic separation: A strong magnetic separator is used for magnetic separation of waste slag to remove ferromagnetic substances.

3. Gravity separation: A gravity separation machine is used to perform gravity separation on waste slag, removing heavy metals and harmful substances from it.

4. Pyrolysis treatment: Pyrolysis treatment is carried out on the waste slag that has undergone gravity separation, and the organic substances in it are decomposed into harmless substances.

5. Crushing treatment: The pyrolysis treated waste slag is crushed to form a fine powder.

6. Stabilization treatment: The crushed waste slag is stabilized to become the final product of harmless treatment.

Through the above process flow, harmful substances in waste slag can be completely removed, achieving the goal of harmless treatment.

4、 Advantages of advanced waste slag treatment process

Advanced waste slag treatment processes have the following advantages:

1. Removing harmful substances: Advanced waste slag treatment processes can completely remove harmful substances from waste slag, achieving the goal of harmless treatment.

2. Saving land resources: Advanced garbage and slag treatment processes do not require a large amount of land resources and can be processed on smaller sites.

3. Reduce environmental pollution: Advanced waste slag treatment processes do not produce odors or leachate, resulting in minimal pollution to the surrounding environment.

4. Improve resource utilization: Advanced waste slag treatment processes can recycle recyclable substances from waste slag, improving resource utilization efficiency.

5、 Conclusion

The issue of garbage has always been a difficult point in the field of environmental protection, and the treatment of garbage and slag is one of the difficulties. The traditional waste slag treatment process has some shortcomings and cannot completely remove harmful substances from it. The advanced waste slag treatment process adopts a physical and chemical treatment method, which can completely remove harmful substances from the waste slag and achieve the goal of harmless treatment. Advanced waste slag treatment processes have the advantages of removing harmful substances, saving land resources, reducing environmental pollution, and improving resource utilization, making them the future development direction of waste slag treatment.

Waste slag treatment process