As global energy demand rises, so does the need for efficient power generation. Despite increasing use of renewable energy production, it is clear that fossil-fueled power plants will remain a key source of electric power generation. Fossil-fueled power plants emit not just the global warming gas carbon dioxide (CO2), but other environmentally harmful substances like particulates and oxides of nitrogen and sulfur (NOx and SO2). The Industrial sector has its specific contribution to the problems of air pollution, particularly those industries that include casting processes, roasting and drying by ovens.