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Author (up) Zaremski, A.; Gastonguay, L.; Zaremski, C.; Chaffanel, F.; Le Floch, G.; Beauchene, J. url  openurl
  Title Capacity of tropical forest soils of french guiana and réunion for depolluting the woods impregnated with biocides Type Journal Article
  Year 2013 Publication Bois et Forets des Tropiques Abbreviated Journal Bois Forets Tropiques  
  Volume 67 Issue 318 Pages 51-58  
  Keywords Bioremediation; Copper chromium arsenic(CCA) wood-destroying fungi; Depollution; Loss of mass; Pentachlorophenol(PCP); Treated timber; Tropical soil  
  Abstract Wood material for a long time was treated with fungicides or insecticides whose impact on the soil after leaching constitutes a real environmental problem. Nowadays, most of the studies on degradation of these toxic products was carried out with microorganisms which have been isolated in the laboratory. The present study sought to refine the knowledge vis-à-vis these microorganisms, especially wood-destroying fungi degrading pollutants in situ, from which few data are actually available. To decontaminate treated wood, the capacity of wooddestroying microorganisms from tropical forest soils of French Guiana and Reunion was evaluated to degrade toxic biocides. These are pentachlorophenol (PCP) and copper- chromium arsenic based compounds (CCA). Monitoring the degradation of samples of red pine, Pinus resinosa, shows that soils of French Guiana are more efficient than those of Reunion Island in terms of microbial activity vis-àvis these two biocides. A significant difference in loss of mass in specimens of red pine treated with CCA and PCP can range from single to double (respectively 18% and 30%). These findings confirm that CCA is less leacher and less degradable than the PCP by microorganisms in the soil. According to the scale of mass loss in laboratory tests, the wood so treated would be classified very not durable after three years of contact with soil, while the treatment is expected to be very durable.  
  Address Cirad Umr Ecofog, BP 701, 97387 Kourou cedex, France  
  Corporate Author Thesis  
  Publisher Lavoisier Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 17775760 (Issn) ISBN Medium  
  Area Expedition Conference  
  Notes Export Date: 12 May 2014; Source: Scopus; Language of Original Document: French Approved no  
  Call Number EcoFoG @ webmaster @ Serial 540  
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