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Installation of a converter at Vale’s Copper Cliff smelter in Sudbury, a major component of the company’s Clean AER Project, is nearly complete. The converter is the first of four converters to be replaced as part of the $1-billion project that will see sulphur dioxide, dust and metals emissions reduced by 85 per cent from current levels.
Citing volatile market conditions and cost challenges, Vale announced in January that it was scaling back the cost of its Clean AER (Atmospheric Emissions Reduction) project from $2-billion to $1- million. At the same time, Vale indicated it would move to a single-furnace operation from a two- furnace operation. Although a significantly less investment, Vale said that the environmental impact would be greater, by reducing emissions substantially more than previously anticipated.
“The original Clean AER project’s scope was designed for a two-furnace operation so it meant that when we made the decision, we had to go back and rescope the project to accommodate the one furnace,” said Vale spokesperson Angie Robson.
Vale doesn’t anticipate moving to a single furnace before 2016. A team was formed to study various aspects of the change and revise plans to accommodate the change to a single furnace.