Incineration slag refers to the solid waste generated in the process of Incineration, which has complex components and contains a large number of heavy metals and organic substances, causing great environmental pollution. However, if Incineration slag can be comprehensively utilized, it can not only reduce environmental pollution, but also realize waste recycling and make contributions to sustainable development.
I. Composition and hazard of Incineration slag
The composition of Incineration slag is complex, which contains a large number of heavy metals and organic substances, such as lead, cadmium, mercury, chromium and other heavy metals, as well as polycyclic aromatic hydrocarbons, dioxins and other organic substances. These substances cause great harm to the environment and human health, such as soil and water pollution, and the emission of harmful gases in the air.
2、 Comprehensive utilization mode of Incineration slag
1. Resource utilization of Incineration slag
Incineration slag contains a large number of metal elements, such as iron, copper, aluminum, etc., which can be recycled to achieve resource utilization. The Incineration slag can be treated by magnetic separation, gravity separation, flotation, etc., and various metal elements can be separated. Then, through smelting, refining and other processes, various metal materials, such as steel, copper and aluminum alloys, can be made.
2. Solidification treatment of Incineration slag
Incineration slag contains a large amount of organic substances and heavy metals. If it is directly landfilled, it will cause serious pollution to groundwater and soil. Therefore, solidification treatment of Incineration slag is an effective treatment method. Solidification treatment can solidify harmful substances in Incineration slag into bricks or concrete, thus reducing environmental pollution.
3. Mineralization treatment of Incineration slag
Incineration slag contains a large number of inorganic substances, such as oxides, silicates, etc., which can be converted into resources through mineralization. Mineralization treatment can transform inorganic substances in Incineration slag into new building materials, such as cement, bricks, etc.
3、 Advantages of comprehensive utilization of Incineration slag
1. Reduce environmental pollution
Comprehensive utilization of Incineration slag can reduce environmental pollution and avoid harmful substances produced during Incineration from harming the environment.
2. Resource utilization
Incineration slag contains a large number of metal elements and inorganic substances, which can be recycled and mineralized to make contributions to sustainable development.
3. Increase economic benefits
The comprehensive utilization of Incineration slag can increase economic benefits, reduce waste treatment costs, create employment opportunities and promote economic development.
IV. Conclusion
Comprehensive utilization of Incineration slag is an effective way of waste recycling, which can reduce environmental pollution, realize waste recycling and make contributions to sustainable development. We should strengthen the research on the comprehensive utilization of Incineration slag, promote the application of various treatment technologies, and make contributions to building a beautiful China.
