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St Marys Cement commissions Canada’s first cement plant wet scrubber

St Marys Cement commissions Canada’s first cement plant wet scrubber

BOWMANVILLE, ONT. — Toronto-based St Marys Cement Inc. has announced the installation and commissioning of a new wet scrubber at its plant in Bowmanville, Ont., the first installed at a cement plant in Canada.

The scrubber uses water injection technology to remove pollutants from the outlet airstream of the plant, explained a recent release. St Marys estimates that’s sulphur dioxide emissions are reduced by over 90 per cent using the technology.

“This $25-million investment in technology to improve the plant’s environmental performance has proven to be effective in removing sulphur dioxide produced in the cement manufacturing process,” said plant operations manager Jim Storey in a statement. “We are also pleased that the scrubber was assembled on site and installed by local Ontario contractors and crews during our annual scheduled plant shutdown.”

The Bowmanville plant is also the first industrial site in North America to have received the International Organization for Standardization’s ISO 50001 certification. The plant’s management was also recognized with an international award for Excellence in Energy Conservation.

St Marys Cement environmental manager for North America Ruben Plaza added, “The environmental benefit of the wet scrubber technology results in more water vapour being introduced into the process and then released as a steam plume, similar to other plants which use this same process technology.

“Without the co-operation and commitment of the entire St Marys team, this latest improvement could not have been delivered so efficiently. The support from the Ministry of Environment, Conservation and Parks and the Municipality of Clarington was very important.”

St Marys Cement is part of the North American operations of international building materials supplier Votorantim Cimentos.

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