Abstract
The objective of this study was to evaluate characteristics of oxalic acid (OA) production and metal removal during degradation of CCA-treated wood in nutrient culture by brown-rot fungi. Two brown-rot fungi, Crustoderma sp. and Fomitopsis palustris extensively degraded the CCA-treated wood, causing mass losses (MLs) up to 49.0% and 43.5%, respectively, while these fungi produced OA during degradation up to 21.3 mg g-1 and 43.8 mg g-1, respectively. Antrodia vaillantii and Polyporales sp. produced OA up to 28.9 mg g-1 and 29.8 mg g-1, respectively, with <3% ML. Fomitopsis palustris with the highest OA production removed effectively 87.5% As and 86.0% Cr during degradation of the treated wood. Antrodia vaillantii and an unknown Polyporales sp. showed notable As removal rates of 90.3% and 88.9%, respectively, and 81.0–83.9% Cr removal. However, only moderate amounts of Cu (40.8%) were extracted by the fungi investigated. The conclusion is that OA production by brown-rot fungi can be partially associated with removal of Cr and As during fungal degradation of CCA-treated wood.
This work was supported by a Korea Research Foundation Grant (KRF-2008-313-F00056), funded by the Korean Government and by a Forest Science and Technology Project (Project No. S121012L110100) provided by the Korea Forest Service of the Korean Government.
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© 2014 by De Gruyter
Articles in the same Issue
- Frontmatter
- Original Articles
- Lignin chemistry and topochemistry during kraft delignification of Eucalyptus globulus genotypes with contrasting pulpwood characteristics
- Rapid functionalisation of cellulose-based materials using a mixture containing laccase activated lauryl gallate and sulfonated lignin
- Aggregation of sodium lignosulfonate above a critical temperature
- Impact of iron(II) and oxygen on degradation of oak – modeling of the Vasa wood
- Morphological, thermal, and structural aspects of dried and redispersed nanofibrillated cellulose (NFC)
- Effects of recovered wood on the formaldehyde release of particleboards
- Oxalic acid production and metal removal during fungal degradation of CCA-treated wood in nutrient culture
- Analysis of cold temperature effect on stress wave velocity in green wood
- Finite element modeling and experimental validation of radio frequency heating (RFH) of curved laminated wood-based panels
- Anti-termitic potential of heartwood and bark extract and chemical compounds isolated from Madhuca utilis Ridl. H. J. Lam and Neobalanocarpus heimii King P. S. Ashton
- Effects of thermal modification on wood ultrastructure analyzed with crystallographic texture
- Short Notes
- Potential contribution of anion exclusion to hydroxide penetration in green liquor-modified kraft pulping
- Improving the weathering on larch wood samples by electron beam irradiation (EBI)
- Effect of plasma treatment on cell-wall adhesion of urea-formaldehyde resin revealed by nanoindentation
- Imaging hyphal growth of Physisporinus vitreus in Norway spruce wood by means of confocal laser scanning microscopy (CLSM)
- Meetings
- Meetings
Articles in the same Issue
- Frontmatter
- Original Articles
- Lignin chemistry and topochemistry during kraft delignification of Eucalyptus globulus genotypes with contrasting pulpwood characteristics
- Rapid functionalisation of cellulose-based materials using a mixture containing laccase activated lauryl gallate and sulfonated lignin
- Aggregation of sodium lignosulfonate above a critical temperature
- Impact of iron(II) and oxygen on degradation of oak – modeling of the Vasa wood
- Morphological, thermal, and structural aspects of dried and redispersed nanofibrillated cellulose (NFC)
- Effects of recovered wood on the formaldehyde release of particleboards
- Oxalic acid production and metal removal during fungal degradation of CCA-treated wood in nutrient culture
- Analysis of cold temperature effect on stress wave velocity in green wood
- Finite element modeling and experimental validation of radio frequency heating (RFH) of curved laminated wood-based panels
- Anti-termitic potential of heartwood and bark extract and chemical compounds isolated from Madhuca utilis Ridl. H. J. Lam and Neobalanocarpus heimii King P. S. Ashton
- Effects of thermal modification on wood ultrastructure analyzed with crystallographic texture
- Short Notes
- Potential contribution of anion exclusion to hydroxide penetration in green liquor-modified kraft pulping
- Improving the weathering on larch wood samples by electron beam irradiation (EBI)
- Effect of plasma treatment on cell-wall adhesion of urea-formaldehyde resin revealed by nanoindentation
- Imaging hyphal growth of Physisporinus vitreus in Norway spruce wood by means of confocal laser scanning microscopy (CLSM)
- Meetings
- Meetings