Slave Lake Pulp to Upgrade Wastewater Treatment with ADI Technology

Slave Lake Pulp, a division of West Fraser Mills Ltd., has contracted ADI Systems Inc., Fredericton, N.B., Canada, to install a wastewater treatment system at its pulp mill in Alberta, Canada. Slave Lake Pulp is a bleached chemi-thermomechanical pulp (BCTMP) mill that produces approximately 240,000 metric tpy of hardwood BCTMP. The new system is expected to be in operation by fall 2014.

The wastewater treatment project will include the installation of an anaerobic ADI-BVF® reactor with a biogas scrubbing system. The anaerobic reactor will reduce demand on the mill's existing aerobic treatment system and will generate biogas. The biogas will be burned in a new co-generation facility to produce up to 6 MW of green electricity for mill use. It is estimated that approximately 30,000 cubic meters per day of methane will be produced from the biogas, roughly enough energy to heat 4,000 Canadian homes.

This new system will ultimately lower Slave Lake Pulp's annual operating costs and allow the mill to continue to meet or exceed environmental requirements for the industry.

ADI Systems, an ADI Group company, has been providing wastewater treatment, anaerobic digestion, and biogas treatment solutions to industry for 30-plus years. It has more than 200 installations worldwide.

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