Abstract
Airborne emissions from metal production represent a health, safety, and environmental challenge to which more and more attention is being directed. Industries worldwide, as well as authorities and others, are resolute in their aim of limiting, reducing, and ultimately eliminating these emissions. Many lessons can be learned by sharing information between industrial branches, as many industries face similar challenges. Certain challenges are, however, highly branch specific. For the Mn ferroalloy industry, such examples include the types of dust generated in the primary processes and the management of polycyclic aromatic hydrocarbons (PAHs) and mercury with respect to furnace design and operation. This article covers airborne emissions from manganese ferroalloy production, including greenhouse gases, nitrogen oxides (NOx), sulfurous gases, PAH, airborne particulate matter, and trace elements, including mercury and other heavy metals. The aim is to summarize current knowledge in a state-of-the-art overview intended to introduce fresh industry engineers and academic researchers to the technological aspects relevant to reduction of airborne emissions.
Highlights
In the task of reducing and abating airborne emissions from an industrial site or process, the scarcity of information represents a difficulty in itself
For the Mn ferroalloy industry, such examples include the types of dust generated in the primary processes and the management of polycyclic aromatic hydrocarbons (PAHs) and mercury with respect to furnace design and operation
The scope of this article includes formation mechanisms, emission factors, and emission measurements of certain types of airborne emissions generated throughout the primary manganese ferroalloy production process
Summary
In the task of reducing and abating airborne emissions from an industrial site or process, the scarcity of information represents a difficulty in itself. Several industrial initiatives both within corporations and based on external knowledgesharing between businesses and countries have achieved great results in this area. The scope of this article includes formation mechanisms, emission factors, and emission measurements of certain types of airborne emissions generated throughout the primary manganese ferroalloy production process. This excludes ore excavation procedures, transport, and electricity generation
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