The B.C. Wood Specialties Group (BCWSG) laminating mission to Japan took place May 14-22, 1994 and involved visits to Japanese companies and industry associations in Nagoya, Osaka, and Nara. The mission was led by Mr. Peter Fisher, Director, Resource Industries Branch, B.C. Ministry of Employment and Investment. The purpose of the mission was to make contacts and to gather information so that the B.C. wood remanufacturing industry could capture further market opportunities during the trip and identify possible future markets for B.C. wood products.
Forest products companies in the ILMA region covering four areas, Cranbrook, Kootenay, Vavenby and Okanagan, were surveyed for their current mill residue utilization. Although the Cranbrook area showed the lowest utilization of bark residues (0 %), it showed the highest utilization for whitewood, sawdust and shavings (98%). Overall, the Okanagan area generated the largest amount of bark and whitewood residues and showed the highest utilization for these residues (69% utilization for bark and 86% for whitewood). The Kootenay area generated the second highest amount of bark and whitewood residues and showed the second highest utilization for these residues (67% utilization for bark and 76% utilization for whitewood). The amounts of bark, sawdust and shavings, slabs, trim ends and yard debris generated and utilized for the above four areas are presented in this report. In 1996, the utilization of bark and sawdust / shavings residues in the ILMA region as a whole was 49.8% and 83.8% respectively compared to 28% and 45% respectively in 1989 showing a substantial increase in utilization. The primary use for sawdust and shavings was found to be pulp furnish followed by particleboard/fibreboard furnish, internal process heat, and agricultural/bedding material. The primary use for the bark residues was for energy generation, either through cogeneration or for internal process heat. There are few value-added product opportunities for bark in comparison to sawdust and shavings. However, a new value-added hog fuel/bark board recently patented by Forintek may have potential to utilize some quantities of bark residues, providing a number of technical, environmental and economic questions can be satisfactorily addressed. Another new product, BiolimeTM, also shows some potential for utilizing large quantities of bark residues.
Solutions are required to the problem of CCA-treated wood waste disposal or reuse in Canada. This issue will become more important in the coming decades as the volumes of CCA- treated wood currently in use are taken out of service. Incorporation of wastes as furnish in composites is one option and there is already industrial interest in the use of wastes from the "urban forest" in such products. While markets for many of the existing "commodity" composites are buoyant with increases in future demand anticipated and a literature review has indicated considerable research activity in the field, the use of CCA-treated wastes in composites currently presents a lot of questions and not many clear cut answers. A literature review, in combination with information on treated wood waste quantities and a study of market feasibility/consumer acceptance issues, suggests that use of CCA-treated wastes in wood/cement composites might be feasible and could be compatible with existing exterior applications for these products. Apart from the need to understand the practical impact of such wastes on the wood/cement composite process and product, key questions concerning market acceptance and effect on process cost need to be addressed. A feasibility study in cooperation with industry would establish whether specific details of technical viability should be investigated as a next step.