Review Of Controls Of Nox

The oxidation state and high temperature flames within a glass furnace promote the evolution of high concentrations of nitroge (NOx). These are toxic gases that adversely affect the eyes and lungs, contribute to acid rain and global warming and are precursors to ground level ozone formation and photochemical fog. EC Directive 96/61EC of September 1996, (IPPC) requires the glass industry to define Best Available Techniques for controlling the main polluting substances. This paper categorises the various NOx reduction techniques in terms of effectiveness, costs and environmental impact.