ADI Systems to install anaerobic digestion system at Slave Lake Pulp.
ADI Systems Inc., Fredericton, New Brunswick, Canada, has been contracted by Slave Lake Pulp, a division of West Fraser Mills Ltd., to install a wastewater treatment system at its pulp mill located in Alberta, Canada. Slave Lake Pulp is a Bleached Chemi-Thermo-Mechanical Pulp (BCTMP) mill that produces approximately 240,000 metric tons of hardwood BCTMP each year.
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 cogeneration facility to produce up to 6 megawatts 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.
The new system is expected to be in operation by fall 2014.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, according to ADI.