Steel Slag Introduction
Steel slag is a byproduct of the steel-making process, providing a valuable resource and throughout the 20th century has been used in a variety of applications. Those applications range from construction materials, fertilizer and soil conditioner to abrasive and filtration media. Steel slag is generated during the manufacturing of steel either by using ore or scrap steel. The material is then melted and refined to form new steel. During this process, numerous impurities and chemical elements are removed and discarded in the form of a solid material, called steel slag.
The positive side to steel slag is that it can be used in a large number of ways. Depending on how it is processed and classified, it can be used as a fertilizer, soil conditioner, cementing agent, road base, abrasive, filler and filtration medium. It can also be used for ballast and railroad tracks and even as cutlery. Some slag is also used for insulation and roofing.
Although the use of steel slag is increasing, the concern about the potential environmental impacts is also increasing. The physical and chemical properties of steel slag vary depending on the processing method and overall chemical composition of the slag. This means that many of the byproducts of steel slag processing may also be hazardous. Steel slag also generates significant amount of dust during transport and operations, releasing potentially hazardous materials into the air.
For these reasons, it is important to understand the environmental impacts of steel slag production or usage and determine if these materials present an environmental concern. Environmental agencies should be notified of any steel slag production or usage and required procedures should be adhere to in order to protect the environment. It is also important for individuals and businesses that use steel slag to be aware that the material may contain potentially hazardous ingredients.
Conclusion
Steel slag can be a useful material in a variety of applications, but it can also be hazardous to the environment. It is important to understand the environmental impacts of steel slag production and usage and to adhere to appropriate safety procedures. Knowing the potential environmental hazards associated with steel slag is the best way to ensure that the environment is protected.
