Horne Smelter shelves study and opts for ‘optimized’ environmental approach – by Staff (Canadian Mining Journal – June 11, 2025)

https://www.canadianminingjournal.com/

Canada’s only copper smelter in Rouyn-Noranda, Quebec is proposing a new approach to meet environmental targets. The Horne Smelter, part of Glencore Canada, processes 210,000 tonnes of copper and precious metals annually.

A 2022 study by Quebec’s public health body revealed the smelter exposed Rouyn-Noranda to harmful arsenic and cadmium levels for decades. The Quebec government required the company to reduce emissions substantially, though without a defined timeline. Glencore and provincial authorities have been negotiating over the years on emissions controls, although the company has reported steady progress.

Glencore’s Horne Smelter decided against its own Aeris project, citing difficulties in meeting emission targets through this route. The company studied the feasibility of Aeris in 2024, aiming to achieve an annual arsenic concentration of 15 nanograms per cubic meter (ng/m³) in ambient air. The study evaluated technical, environmental, safety, and financial aspects.

For the rest of this article: https://www.canadianminingjournal.com/news/horne-smelter-shelves-study-and-opts-for-optimized-environmental-approach/