 |
 |
 |
 |
 |
 |
Energy Generation- How it Works
- Case Studies & Testimonials
- Foothill Greenhouses Ltd
- Taylor Lumber Co. Ltd.
- Ouje Bougoumou Village
- Spruce Falls Inc
- Campbellton Hospital
Pulp & Paper - Spruce Falls Inc. (Kapuskasing, ON)
The Spruce Falls mill produces approximately 377,000 metric tons of quality newsprint and specialty papers and 114 million board feet of stud lumber on an annual basis.
As wastewater treatment became necessary, sludge was produced as part of the process. Initially, primary sludge was burned with the wood waste, but with the introduction of coated paper de-inking and secondary wastewater treatment, the sludge had to be land filled. Spruce Falls started looking for a more long-term solution to meet the latest environmental commitments, and the combustion of sludge, together with heat recovery, became the best alternative.
The project involved three new shop assembled KMW bioenergy combustion systems each coupled to a shop assembled package steam boiler mounted directly above the combustion system. A common electrostatic precipitator is used for emission control and designed for a maximum of 20 mg/Nm3 of particulate emission. The steam boilers with a total capacity of 240,000 lbs/hr are designed for 900-psig super-heated steam to 900F for future power generation.
At design point, the plant burns approximately 1,000 wet tons of biomass per day. Primary sludge, secondary sludge and de-inking sludge is de-watered in a screw press to 70% moisture content. The sludge is approximately 27% of the fuel mixture with the balance consisting of bark and mill residue.
The project was completed in less than 12 months from purchase order to steam production and was commissioned in October 1998.