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No separate legislative acts are in force in Poland or the European Union that would regulate waste wood issues directly. Therefore, the analysis presented in this paper concerns legislation applying generally to waste, including waste wood. The issues discussed include terminology, classification and waste wood management. Pursuant to Directive 2008/98/EC, waste is any substance or object which the holder discards or intends or is required to discard. This definition of waste has remained unchanged in the amended Waste Act in Poland. Waste classification issues are partly resolved in the European Waste Catalogue. A national waste catalogue has been created, in which waste has been divided into 20 groups, depending on the source from which it is generated. Waste wood has been allocated to seven groups, and in particular to group 03. It is worth mentioning that the catalogue does not include a number of wood waste groups, namely OSB, fibreboard, plywood, board cutting waste, as well as products made from them, etc. This leads to problems with the interpretation of regulations concerning, in particular, the combustion of biomass. The priority task in waste management is waste prevention, followed by the preparation of waste for reuse, its recycling and finally other recovery methods, i.e. energy recovery or waste disposal. In view of the above, energy recover, as well as the reprocessing of waste into materials to be used as fuel or for backfilling or landfilling operations, is not a form of recycling. In spite of these assumptions, legislative acts are in force which regulate actions aimed at increasing the use of waste wood for energy recovery purposes. Regulations promoting the use of waste wood for energy recovery purposes can also be found in Polish legislation. The paper points out to the absence of clear and comprehensive legal solutions concerning waste wood management. This situation results in serious difficulties in the rational use of waste wood as one of the main sources of timber. It also leads to problems with estimating the quantity of waste wood and, consequently, prevents the correct assessment of its potential for use by particular sectors of the economy.
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Struktura podaży odpadów drzewnych w Polsce

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Timber harvesting and wood processing are inseparably accompanied by various waste production. Waste wood, in the form of remains of tree care and correctly conducted logging operations, may be a product of forestry activities. It includes branches, boughs or rootwood. Post−industrial waste wood varies in form and the degree of shredding, and in terms of its contamination with both chemical compounds and mechanical or mineral pollutants. Daily living activities are a source of post−consumer waste wood, including demolition wood and furniture, the management of which is the most challenging task. Agricultural crop waste is a category that is often overlooked. It includes pruning waste, waste being an effect of plant regeneration in orchards and soft fruit plantations, or field or roadside shrub removal. The difficulty with assessing potential quantity of waste wood is to large extent caused by the lack of rational and comprehensive legal solutions. It should be noted that waste holders generating up to 10 t of sawdust, wood particles, wood, waste particleboards or veneer, or up to 10 t of waste bark or cork annually, are not obliged to keep a record of such waste. Another important factor hindering the determination of the supply of waste wood in Poland is the lack of a clear system of its classification. Consequently, there is no data concerning waste wood quantity. Considering the supply of wood materials and products, their characteristics and intended use, we can assumed that the greatest quantity contaminated waste is generated by furniture and wood−based panels industry. The paper also points out the inconsistencies in the literature regarding the determination of the potential waste wood base. In general, approximately 8.0 million m³ of post−industrial waste wood are generated in Poland every year. The supply of post−consumer waste wood is at a level of approximately 5.3 million m³. The supply of wastes from forestry and agricultural crop waste equals 3.8 million m³ and 0.4 million m³, respectively. So approximately 18.0 million m³ of waste wood, varying in terms of origin, form and properties, may be generated in Poland annually. Considering the wood shortage that can be observed in Poland, as well as the substantial quantities and availability of waste wood, these two latter factors may constitute an alternative source of wood raw materials for a number of sectors of the economy.
Glass fibre fabric reinforced particleboard. Possible upgrading of particleboard strength properties has been examined by addition of reinforcing layers in a form of glass fibre fabric. Physical, mechanical properties and density profile of the manufactured particleboard variants have been examined and compared with the properties of the control particleboards. Almost double increase in MOR, MOE and IB has been obtained for particleboards with glass fibre fabric placed on the board surface.
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