IMPROVING OF THE IMPREGNABILITY OF REFRACTORY SPRUCE WOOD BY BACILLUS LICHENIFORMIS PRETREATMENT

In this study it was aimed to improve impregnability of spruce (Picea orientalis L.) wood with bacteria (Bacillus licheniformis A1) pretreatment, using copper/chromium/arsenic Type C (CCA-C) and copper azole Type A (CBA-A). The effects of Bacillus licheniformis A1 on weight loss, copper uptake, and compression strength of samples were determined. Weight loss was slightly changed by bacterial degradation in all test groups. The best copper uptake cases were 1466 ppm for CCA-C and 2730 ppm for CBA-A. Improvement on copper uptake with bacteria pretreatment was in a range of 18 to 103% compared to control samples. Compression strength was decreased by bacterial degradation. However strength losses might be acceptable for several construction applications. Bacillus licheniformis A1 seems to have a good potential for increasing the permeability of spruce wood.

[1]  R. Ibach.  Biological Properties of Wood , 2012 .

[2]  L. Reinprecht,et al.  BACILLUS SUBTILIS FOR IMPROVING THE SPRUCE WOOD IMPREGNABILITY , 2011 .

[3]  C. Lehringer.  Permeability improvement of Norway spruce wood with the white rot fungus Physisporinus vitreus , 2011 .

[4]  S. Yıldız,et al.  THE EFFECTS OF PRE-ACID TREATMENT ON PRESERVATIVE RETENTION AND COMPRESSION STRENGTH OF REFRACTORY SPRUCE WOOD IMPREGNATED WITH CCA AND ACQ , 2010 .

[5]  Craig R. McIntyre,et al.  Copper-Based Wood Preservatives A Comprehensive Review of Copper-Based Wood Preservatives , 2008 .

[6]  S. Yıldız.  Retention and penetration evaluation of some softwood species treated with copper azole , 2007 .

[7]  H. Militz,et al.  Vorbehandlung von Fichtenholz mit Chemikalien mit dem Ziel der Verbesserung der Imprägnierbarkeit , 2007, Holz als Roh- und Werkstoff.

[8]  M. Hale,et al.  Comparison of the bordered pits of two species of spruce (Pinaceae) in a green and kiln-dried condition and their effects on fluid flow in the stem wood in relation to wood preservation , 2006 .

[9]  Thomas Ulvcrona.  Impregnation of Norway spruce (Picea abies L. Karst.) wood with hydrophobic oil , 2006 .

[10]  Dian-Qing Yang,et al.  Impact of biological incising to improve phenolic resin retention and hardness of various wood species , 2006 .

[11]  Y. Imamura,et al.  Drying and anatomical characteristics of sugi wood attacked by bacteria during pond storage , 1998, Journal of Wood Science.

[12]  V. Bucur,et al.  Impact of water storage on mechanical properties of spruce as detected by ultrasonics , 1989, Wood Science and Technology.

[13]  H. Greaves.  The bacterial factor in wood decay , 1971, Wood Science and Technology.

[14]  Stan Lebow,et al.  Alternatives to chromated copper arsenate (CCA) for residential construction. , 2004 .

[15]  Jun Zhang,et al.  FTIR Characterization of Copper Ethanolamine—Wood Interaction for Wood Preservation , 2000 .

[16]  G. Daniel,et al.  Developments in the Study of Soft Rot and Bacterial Decay , 1997 .

[17]  J. Winandy.  EFFECTS OF TREATMENT, INCISING, AND DRYING ON MECHANICAL PROPERTIES OF TIMBER , 1996 .

[18]  Carol A. Clausen,et al.  Bacterial associations with decaying wood: a review , 1996 .

[19]  S. Diamandis,et al.  Effect of bacteria on the mechanical and chemical properties of wood in poplars damaged by frost cracks , 1992 .

[20]  K. Archer.  Bacterial modification of Douglas fir roundwood permeability , 1985 .

[21]  E. Jones,et al.  Bacterial degradation of lignified wood cell walls in anaerobic aquatic habitats , 1983, Applied and environmental microbiology.

[22]  H. Greaves.  Selected Wood-Inhabiting Bacteria and Their Effect on Strength Properties and Weights of Eucalyptus regnans F. Muell and Pinus radiata D. Don Sapwoods , 1973 .