How to deal with steel dust dust more environmentally friendly?

With the improvement of people's awareness of environmental protection, the waste generated in the production process of the steel industry has also received widespread attention. Among them, as a kind of waste produced in the process of iron and steel production, the problem of environmental protection treatment has been paid much attention. This paper will discuss the environmental treatment methods of steel dust dust, in order to find more environmentally friendly waste treatment ways for steel industry.

The treatment method is resource utilization. Steel dust dust is mainly composed of iron oxide, calcium oxide and so on, containing rich iron elements. Therefore, the iron element in the steel dust can be extracted by smelting and recycling, and then used in steel production or other industrial fields to achieve the reuse of resources. This method can not only reduce the consumption of raw materials, reduce production costs, but also avoid dust pollution to the environment.

The second treatment method is curing. Iron and steel dust dust contains high calcium oxide components, can be solidified by adding an appropriate amount of fly ash, waste cement and other materials, so as to achieve the purpose of reducing the volume and improving its stability. This method can effectively reduce the amount of dust release, reduce the harm to the environment, but also convenient storage and transportation.

The third treatment method is chemical leaching. The content of harmful substances such as heavy metal ions and chromium in steel dust dust is high, which is easy to pollute the environment in the process of treatment. Therefore, chemical leaching technology can be used to remove harmful substances and reduce its impact on the environment. This method requires the selection of appropriate leaching agents, and control of operating conditions, so that harmful substances can be effectively removed, and the waste residue after treatment can be more environmentally friendly treatment.

The fourth treatment method is biological treatment. The steel dust dust contains a certain amount of organic matter, which can be degraded by the action of biological bacteria, so as to reduce the content of organic matter and remove harmful substances. This method is environmentally friendly and can reduce the use of chemical agents, while also improving the degradation efficiency of organic material and reducing treatment costs.

In summary, the treatment methods of steel dust removal ash have many ways, such as resource utilization, solidification treatment, chemical leaching and biological treatment, and each method has its unique advantages and application scenarios. In the process of treatment, the appropriate treatment method can be selected according to the specific situation to realize the environmental protection treatment and resource utilization of waste. It is hoped that the steel industry can continue to explore more environmentally friendly waste treatment methods, and contribute to the construction of a green and sustainable development environment.