Project: Optimisation of material recycling and energy recovery from waste and demolition wood in different value chains

The DEMOWOOD project has explored the existing situation with waste wood management in France, Germany and FI. The amounts of waste wood in 5 countries (FI, FR, DE, CH & AT) and at EU level have been estimated (~40 Mt/y in EU), by origin, and management practices have been described; strong differences in regulations, classifications, recovery options have been identified. A typology and suggestions for harmonization at EU level as well as recommendations for progress have been formulated. Detection and sorting of waste wood has been deeply studied and 3 technologies (NIR, XRF, IMS) were tested on-line and calibrated with positive results for detecting the different kinds of contaminants in wood waste. It has also been shown that pallet wood could represent an interesting partial wood resource substitution for TMP pulp production. Particle boards made of 90% to 100% recycled wood, with a minimum of sorting, have acceptable mechanical performances; removing coatings from waste wood is not necessary for that recycling option. The combustion of class C recovered wood and forest residues in a pilot scale fluidized bed boiler showed no significant differences in gaseous emissions, but a fuel quality control and efficient particle separation systems would be necessary for a development of the use of this kind of fuel in such equipment. Laboratory tests have also allowed to conclude that recovered wood suits for bioethanol production in a ”standard” biotechnical process, probably with only minor process modifications. The economic and environmental assessments carried out on all analyzed concepts show, firstly positive (to very positive) savings when replacing feedstock with secondary wood products, secondly an advantage on analyzed impacts for material recycling (panels) compared to energy pathways and thirdly the significance of sorting and logistics activities on the value recovery economy.

Duration 01/02/2011 - 07/05/2014
Website visit project website
Network WoodWisdom-Net 2
Call Sustainable, competitive processing and end-use concepts for forest-based industries

Project partner

Number Name Role Country
Fraunhofer Society for the Advancement of Applied Research - Fraunhofer Institute for Wood Research Wilhelm-Klauditz-Institut Germany
Centre Technique du Papier France
Lassila & Tikanoja Oyj Finland
TITECH GmbH Germany
Technical Research Centre of FI Finland
Finnish Wood Research Oy Finland
SITA Recycling France
Pfleiderer Holzwerkstoffe GmbH Germany
Technological Institute for Forest Cellulose, Construction-wood and Furniture Coordinator France
Veolia Environnement R&I France
RTT Steinert GmbH Germany
Schumann-Analytics Germany