Different branches of timber industry cause with their production processes, raw materials and other substances and their products various types and levels of pollution to the environment. The industry of veneer and glued wood produces yearly (in spite of its proverbial ecological unquestionableness) over 35.000 m3 of waste water and water vapours, l.800 t of reeks and glue remains and over 8.600 m3 of remainders of glued wood (with approximately 640 t of fixed glue), which are afterwards without control burned in various industrial boiler rooms. In all these remains, a lot of chemical substances are present, which pollute the environment either because of their toxicity, colour or smeli or because of temperature. The most for protection of the environment in the industry of veneer and glued wood has until now been done in the field of glues and gluing, and that has been directly connected with the demands for ecologicaly unquestionable products. However, the work within this field has more or less been limited to the free formaldehyde problematics. All stricter criteria for so called "environment friendly products" and the corresponding standards of the future European and world market dictate intensive scientific research in the discussed field. The topics presented in this article should also contribute something to it.
|
