The modernization program will include:
• Reduction cells to be equipped with alumina point feeders, resulting in better sealing for the reduction cell and significantly reducing emissions;
• Fitting of 24 dry scrubbers to ensure up to 99% fluoride collection;
• Installation of 64 new reduction cells in 16 potrooms, resulting in a 100,000 mt increase in aluminum output;
• Modernization of the air supply systems;
• Replacement of electrical equipment; and
• Introduction of automated process control
systems in all potrooms.

The modernization project is aimed at reducing the smelter’s environmental impact and is expected to result in 40% reduction of the overall volume of hazardous emissions. Before the year 2012, hydrogen fluoride emissions at the smelter will reportedly be cut by 17% and benzopyrene emissions by 30%.

UC Rusal said its specialists are developing a new technology aimed at reducing emissions at Söderberg production facilities and fulfilling modern international standards.