The most useful method for the valorization of wood wastes and wooden wastes is energetic valorization. In France the percentage of wood treated by antisaptain products is around 30%. Currently with the growing regulation, there is a need for cleaner methods and technology to allow sustainable valorization. The preservatives concerned are common organochlorine compounds (NaPCP) less used nowadays in France and another product used at large scale now composed of quaternary ammonium and boron compounds. Results concerning air emissions during the combustion process, chemical analysis of process residues, toxicological evaluation of combustion exhaust gas in rats and ecotoxicological evaluation of residues is presented to assess the risk of recycling processes.

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