BLEACHING WOOD WITH CHLORINE-FREE COMPOSITION

UDC 674.048

 

Bazhelka Ihar − PhD (Engineering), Associate Professor, Head of the Department of Woodworking Technology. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: bikbstu@mail.ru

Kanavalava Anastasiya – PhD student, the Department of Woodworking Technology. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: anastasiyakonov@gmail.com Radkevich Luidmila – Researcher, the Rheophisics and Macrokinetics Laboratory. A. V. Luikov Institute of Heat and Mass Transfer of the National Academy of Sciences of Belarus (15, Brovki str., 220072, Minsk, Republic of Belarus). E-mail: l.radkevich.69@gmail.com

 

DOI: https://doi.org/ 10.52065/2519-402X-2024-282-22.

 

Key words: eco-friendly wood bleaching, chlorine-free formulations, biostability.

For citation: Bazhelka I. K., Konovalova A. A., Radkevich L. V. Bleaching wood with chlorine-free composition. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2024, no. 2 (282), pp. 180–186 (In Russian). DOI: 10.52065/2519-402X-2024-282-22.

Abstract

The article presents the results of tests of the chlorine-free composition Bio-Wood 0621 for bleaching wood affected by wood staining and mold fungi. During the work, an analysis of chlorine-containing compositions for bleaching wood and compositions without chlorine was carried out. The purpose of this work was to study and analyze the composition for bleaching wood without chlorine Bio-Wood 0621 and select the temperature and time conditions for its use to achieve a high degree of bleaching of wood affected by wood staining and mold fungi, as well as to evaluate its bioprotective properties. It has been shown that the optimal conditions when using a chlorine-free wood bleaching composition based on sodium percarbonate is the concentration of the working bleaching solution not lower than 6 wt. % and carrying out the bleaching process at a temperature not lower than 60°C. It has been established that the Bio-Wood 0621 composition not only provides wood bleaching, but also provides longer-lasting antiseptic protection against the re-formation of blue stains and mold. This composition is environmentally friendly, does not corrode impregnating equipment, is safe for those working with it, therefore can be successfully used in woodworking enterprises for bleaching and protecting lumber.

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References

  1. Ozcifci A., Özbay G. Impacts of bleaching chemicals and outdoor exposure on changes in the color of some varnished woods. BioResources, 2010, vol. 5, issue 2, pp. 586–597. DOI: 10.15376/biores.5.2. 586-597.
  2. Kononov G. N., Verevkin A. N., Serdyukova Yu. V. Physico-chemical changes in the anatomical structure of mycologically destroyed wood. Lesnoy vestnik. Derevoobrabotka i khimicheskiye tekhnologii [Forest Bulletin. Woodworking and Chemical Technologies], 2016, no. 6, pp. 97–102 (In Russian).
  3. Nikishin V. M., Obolenskaya A. V., Shchegolev V. P. khimiya drevesiny i tsellyulozy [Chemistry of wood and cellulose]. Moscow, Lesnaya promyshlennost’ Publ., 1978. 367 p. (In Russian).
  4. Botvin M. V., Polyanskaya I. S. Bleaching agents in the wood processing industry. Integratsiya nauki i praktiki v sovremennykh usloviyakh: materialy Mezhdunarodnoy nauchno-prakticheskoy konferentsii [Integration of science and practice in modern conditions: materials of the International scientific and practical conference]. Minsk, 2020, pp. 55–59 (In Russian).
  5. Bazhelka I. K., Kanavalava A. A. Comparative assessment of methods and means for bleaching wood. Lesnaya inzheneriya, materialovedeniye i dizayn: materialy 87-y nauchno-tekhnicheskoy konferentsii (s mezhdunarodnym uchastiyem) [Forestry engineering, materials science and design: proceedings of the 87th scientific and technical conference (with international participation)]. Minsk, 2023, pp. 164–167 (In Russian).
  6. Bazhelka I. K., Kanavalava A. A., Radkevich L. V. Evaluation of compositions for bleaching wood affected by wood staining and mold fungi. Trudy BGTU [Proceedings of BSTU], issue 1, Forestry. Nature management. Processing of Renewable Resources, 2023, pp. 217–223 (In Russian).
  7. Kryazhev A. M., Golub O. V., Sanzharovskiy A. Yu. Entsiklopediya tekhnologiy 2.0: Proizvodstvo nemetallov [Encyclopedia of Technology 2.0: Production ofnon-metals]. Moscow, Saint Petersburg, Centr ekologicheskoy promyshlennoy politiki Publ., 2022. 145 p. (In Russian).
  8. Miloradova L. A., Komarova G. V., Koroleva T. A. Otbelka tsellyulozy [Pulp Bleaching]. Arkhangelsk, AGTU Publ., 2005. 130 p. (In Russian).
  9. Hakimova F. H., Sinyaev K. A., Andrakovskiy R. E. Development of technology for producing wood pulp for chemical processing. Khimiya rastitel’nogo syr’ya [Chemistry of plant materials], 2020, no. 2, pp. 333–343 (In Russian).
  10. Kislenko V. N., Berlin A. A. Kinetics and mechanism of oxidation of organic compounds with hydrogen peroxide. Uspekhi himii [Advances in chemistry], 1991, vol. 60, no. 5, pp. 949–981 (In Russian).
  11. Demin V. A. Activation and oxidation of lignin in sulphate pulp bleaching processes. 1. The mechanism of activation and oxidation with hydrogen peroxide. Khimiya drevesiny [Wood chemistry], 1994, no. 3, pp. 29–37 (In Russian).
  12. Pestova N. F. Proizvodstvo drevesnoy massy [Wood pulp production]. Syktyvkar, SLI Publ., 2013. 101 p. (In Russian).
  13. Popova N. R., Bogolicyn K. G., Povarnicyna T. V. Catalytic oxidation of lignin substances using polyoxometalates as catalysts. Khimiya rastitel’nogo syr’ya [Chemistry of plant materials], 2008, no. 4, pp. 5–14 (In Russian).
  14. Hakimova F. H., Sinyaev K. A., Zhulanova A. E., Hakimov R. R. Peroxide delignification. Vestnik PNIPU. Khimicheskaya tekhnologiya i biotekhnologiya [Bulletin of PNRPU. Chemical technology and biotechnology], 2016, no. 4, pp. 70–79 (In Russian).
  15. McKillop A., Sanderson W. R. Sodium perborate and sodium percarbonate: cheap, safe and versatile oxidising agents for organic synthesis. Tetrahedron, 1995, vol. 51, issue 22, pp. 6145–6166. DOI: 10.1016/ 0040-4020(95)00304-q.
  16. Ivanova A. S., Kozak S. S. The use of hydrogen peroxide-based preparations for sanitary treatment of equipment and surfaces in the slaughterhouse. Vsyo o myase [All about meat], 2011, no. 3, pp. 33–36 (In Russian).

15.03.2024