BPEI provided engineering and on-site supervision for power boiler improvements. Results were an 80% decrease in emissions and a 20% increase in efficiency for Williams Lake Plywood.

Operational improvements were made based on BPEI’s analysis of the mill’s entire mass-flow process, including:

• backend ash collection system and disposal method
• controls system and interconnecting ducting

Emissions reduction and improved efficiency were achieved by:

• adding electrostatic precipitators
• designing and adding overfire and undergrate air modifications.