Demineralizer Plant Upgrade, Port Alberni Mill, Catalyst Paper

Allnorth designed and installed a new demineralizer plant that replaced a 50-year-old demineralizer plant. New piles and foundations were installed to support the new building and electrical center. The existing organic traps and mixed-bed demineralizers were relocated and upgraded for their new service, and new multimedia filters, booster pumps and chemical skids were purchased.  During the relocation and upgrade of the existing equipment, the steam plant operated on treated water produced by portable demineralizer trailers.

Allnorth’s responsibilities for this project included:

  • Preliminary engineering study
  • Capital cost estimate
  • Process engineering
  • Structural engineering
  • Mechanical engineering
  • Piping design
  • HVAC engineering


About this pulp and paper project

Catalyst is western North America's largest producer of mechanical printing paper. The Port Alberni Division, located near the town of Port Alberni on Vancouver Island, British Columbia, produces directory and lightweight-coated papers.

Services in this project

Mechanical Engineering

Allnorth provides comprehensive mechanical and piping engineering services to industrial projects. Our in-house  multidisciplinary expertise allows Allnorth to offer integrated service packages for clients in multiple sectors.

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Process Engineering

Allnorth provides integrated process engineering service packages for industrial projects. We recognize that downtime is expensive for our clients, so our teams specialize in retrofitting new systems into existing operations with minimal disruption.

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Structural Engineering

Allnorth provides comprehensive structural engineering design services for industrial, commercial, and municipal clients. We design short- and long-span bridge structures; municipal, industrial, and commercial buildings; and temporary construction works.

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