Back to Insights & stories

CCR Refinery: Environmental Policy and Atmospheric-emissions Management

Author: Glencore Canada | Date: 14/10/2020

Through its environmental policy, CCR Refinery is committed to, among other things:

  • Identifying, assessing and monitoring its environmental impacts.
  • Complying with applicable regulatory requirements.
  • Measuring its impact continuously.
  • Tracking its actual environmental performance.

As a result, over the last few years, CCR has improved its environmental performance and compliance:

  • Modernization and automation of the selenium production process to comply with the Metropolitan Montreal Conmmunity’s (MMC) new regulations for process-water effluent.
  • 55% reduction of greenhouse gas emissions since 1990.

CCR Refinery is also committed to significant reductions of its atmospheric emissions affecting the neighbouring industrial and residential sectors in Montreal-East.

A vast action plan representing investments in excess of $30M has been carried out in the Refinery’s three main production sectors: the electro-refining sector, the spent anodes re-heating furnace, and the precious metals sector.

This action plan included, among other things:

  • Capturing fugitive emissions at the source:
    • At the casting spoons.
    • At the casting wheel.
    • At the casting launder.
  • Constructing a pilot plant.
  • Constructing a new dust collector enhanced to process the fugitive emissions.
  • Reducing emissions from the holding furnace.
  • Reconfiguring roof ventilation.

These new measures have significantly reduced the refinery’s atmospheric emissions of arsenic by 82%, copper by 80%, nickel by 62%, and lead by 51%. Total particulate matter emissions were also reduced by 25% during this period.

The following graph depicts the reduction of CCR Refinery’s arsenic emissions by more than 80%:

Alt

Rigorous monitoring will be continued to ensure the compliance of the atmospheric emissions, which involves sampling and modelling atmospheric concentrations of metals and long-term mitigation measures.