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Evaluation of the Microclimate in a Stored Softwood Chip Pile for Biopulping

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Published/Copyright: June 1, 2005
Holzforschung
From the journal Volume 57 Issue 3

Summary

Storage of wood chips is preferred to storage of round wood, however, chip deterioration causes considerable problems in chip piles. Factors contributing to deterioration have, therefore, been studied to manage chip storage. The requirements of biopulping processes have renewed interest in the microclimate in these piles. The aim of this study was to assess the suitability of a 3000 ton softwood chip pile for colonization by a biopulping fungus. This study evaluated conditions such as temperature, moisture and CO2 that developed over a 3-week period in the chip pile. Zones that formed within the pile varied in temperature, CO2 concentration and moisture content. The high temperatures that developed in some areas in the chip pile could make a large volume (29%) of the chip pile unsuitable for colonization by mesophilic white-rot fungi. The moisture content in 24% of the chip pile reached 55%, but is not expected to have a large impact on biopulping. The areas of high temperature and high moisture also overlapped. Special management practices would, therefore, be required to produce a suitable environment in the chip pile for uniform colonization by biopulping fungi. High levels of CO2 (12.7%) accumulated for a short period in some areas, but biopulping could still be effective at these levels.

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Published Online: 2005-06-01
Published in Print: 2003-04-25

Copyright © 2003 by Walter de Gruyter GmbH & Co. KG

Articles in the same Issue

  1. Editorial
  2. Post-Harvest Chemical Staining in Blackwood (Acacia melanoxylon R. Br.)
  3. Albino Strains of Ophiostoma Species for Biological Control of Sapstaining Fungi
  4. Presence of a Distinct S3 Layer in Mild Compression Wood Tracheids of Pinus radiata
  5. A Method to Estimate Fibre Length Distribution in Conifers Based on Wood Samples from Increment Cores
  6. Inhomogeneities in the Chemical Structure of Hardwood Lignins
  7. Molecular Modeling of Lignin β-O-4 Model Compounds. Comparative Study of the Computed and Experimental Conformational Properties for a Guaiacyl β-O-4 Dimer
  8. Kraft Green Liquor Pretreatment of Softwood Chips. Part III: Lignin Chemical Modifications
  9. The Role of Ferulic Acid Removal during Bleaching of Wheat Straw Mechanical Pulp with Peroxygen Reagents
  10. Surface Fractal Dimensionality and Hygroscopicity for Heated Wood
  11. Evaluation of the Microclimate in a Stored Softwood Chip Pile for Biopulping
  12. Wettability of Heat-Treated Wood
  13. The Relationship between Longitudinal Growth Strain, Tree Form and Tension Wood at the Stem Periphery of Ten- to Eleven-Year-Old Eucalyptus globulus Labill.
  14. Effects of Thermal Conductivity Data on Accuracy of Modeling Heat Transfer in Wood
  15. Detection of the Fracture Path under Tensile Loads through in situ Tests in an ESEM Chamber
  16. Properties of Southern Pine Wood Impregnated with Styrene
  17. Takayoshi Higuchi 75 Years Old
  18. Literature Reports
https://doi.org/10.1515/HF.2003.044

Articles in the same Issue

  1. Editorial
  2. Post-Harvest Chemical Staining in Blackwood (Acacia melanoxylon R. Br.)
  3. Albino Strains of Ophiostoma Species for Biological Control of Sapstaining Fungi
  4. Presence of a Distinct S3 Layer in Mild Compression Wood Tracheids of Pinus radiata
  5. A Method to Estimate Fibre Length Distribution in Conifers Based on Wood Samples from Increment Cores
  6. Inhomogeneities in the Chemical Structure of Hardwood Lignins
  7. Molecular Modeling of Lignin β-O-4 Model Compounds. Comparative Study of the Computed and Experimental Conformational Properties for a Guaiacyl β-O-4 Dimer
  8. Kraft Green Liquor Pretreatment of Softwood Chips. Part III: Lignin Chemical Modifications
  9. The Role of Ferulic Acid Removal during Bleaching of Wheat Straw Mechanical Pulp with Peroxygen Reagents
  10. Surface Fractal Dimensionality and Hygroscopicity for Heated Wood
  11. Evaluation of the Microclimate in a Stored Softwood Chip Pile for Biopulping
  12. Wettability of Heat-Treated Wood
  13. The Relationship between Longitudinal Growth Strain, Tree Form and Tension Wood at the Stem Periphery of Ten- to Eleven-Year-Old Eucalyptus globulus Labill.
  14. Effects of Thermal Conductivity Data on Accuracy of Modeling Heat Transfer in Wood
  15. Detection of the Fracture Path under Tensile Loads through in situ Tests in an ESEM Chamber
  16. Properties of Southern Pine Wood Impregnated with Styrene
  17. Takayoshi Higuchi 75 Years Old
  18. Literature Reports
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