Furniture wood waste depollution through hydrolysis under pressurized water steam: Experimental work and kinetic modelization

• Published in: Journal of hazardous materials Vol. 436; p. 129126
• Main Authors: Gibier, Maximilien, Sadeghisadeghabad, Mohammad, Girods, Pierre, Zoulalian, André, Rogaume, Yann
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 15.08.2022; Elsevier
• Subjects: Chemical Sciences; FTIR on-line measurement; Hydrolysis; Kinetic modelisation; Material chemistry; Urea-formaldehyde resin; Wood waste remediation; Hydrolysis; Kinetic modelisation; Wood waste remediation; FTIR on-line measurement; Urea-formaldehyde resin
• ISSN: 0304-3894; 1873-3336
• DOI: 10.1016/j.jhazmat.2022.129126

As the Recycling of wood waste becomes more important each year, wood products that contain urea-formaldehyde resins gained more attention due to the release of formaldehyde and other chemicals which have a critical impact on humans health and the environment. In this study, the hydrolysis of wood wastes from a French furniture industry was studied under different controlled conditions (temperature/pressure, steam ratio). An original on-line method to measure the emission of formaldehyde and ammonia using a FTIR spectrometer and a dilution system was applied successfully in this study. The effect of operatory conditions on formaldehyde and ammonia released is discussed. A mathematical model was also introduced to model the behavior of the ammonia and formaldehyde emission in the hydrolysis of wood waste. [Display omitted] •Furniture wood waste Depollution was studied through hydrolysis process under different conditions.•On-line FTIR gas analysis was developed to follow ammonia and formaldehyde emissions.•More than 70% of resin elimination was reached thanks to the hydrolysis process.•Hydrolysis process was successfully numerically modeled to predict ammonia and formaldehyde emissions.