Spent Caustic Material as a Replacement for Process Chemicals Used in Paper Production
Summary
In the final stages of evaluation and close to implementation is the use of spent caustic material from the Lloydminster Heavy Oil Upgrader (energy production) to replace process chemicals used in the Weyerhaeuser’s KRAFT pulp paper mill in Grande Prairie. Currently the oil and grease contaminated sodium hydroxide materials are disposed of by Husky Energy Inc. via deep well injection. Weyerhaeuser previously purchased high purity sodium hydroxide solution at considerable cost from an international supplier.
Industry
| Industry Sector |
Specific Industry |
| Energy utility sector |
- Lloydminster Heavy Oil Upgrader
|
| Paper sector |
- Weyerhaeuser (pulp paper mill)
|
Region
Alberta, Canada.
Applied Technologies
- Heavy Oil Upgrader (information not available whether this technology has been designed specifically for the purposes of this synergy)
Triple Bottom Line Aspects (direct at operational level)
Economic |
- Potential material and associated costs savings
- Decrease liabilities associated with deep well injection
|
Environment |
- Reduce process waste disposal
- Materials efficiency
|
Social |
|
Additional Comments
None.
References
- Applied Sustainability (n.d.) "Alberta, By-Product Synergy Project", Hatch, Canada, Retrieved from: http://www.hatch.ca/Sustainable_Development/Articles/CALGARY_BPS.pdf
Last Update
20 July 2010
