Improving the efficiency of metal removal from CCA-treated wood using brown rot fungi

Gyu Hyeok Kim; Yong Seok Choi; Jae Jin Kim

doi:10.1080/09593330902858906

Improving the efficiency of metal removal from CCA-treated wood using brown rot fungi

Gyu Hyeok Kim, Yong Seok Choi, Jae Jin Kim

Division of Environmental Science and Ecological Engineering

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

The purpose of this study was to evaluate the bioremediation of CCA-treated wood wastes by brown rot fungi, as well as to improve the metal removal from treated wood by altering an existing bioremediation process. In Process I, CCA-treated wood sawdust was added and bioremediated after accumulating oxalic acid in a fermentation broth. In Process II, simplification of the bioremediation process and improvement of metal removal efficiency were attempted. Thus, the treated sawdust and fungal inocula were simultaneously placed in a fermentation broth. In addition, the efficiency of the fermentation broth containing oxalic acid was compared with that of commercial oxalic acid. The results obtained using Process I showed that the greatest reduction in arsenic and chromium (98% and 91%, respectively) was achieved by an unknown Polyporales species. On the other hand, the most efficient removal of copper (82%) was achieved by Daedalea dickinsii, which had the lowest oxalic acid production. Using Process II, the highest copper, chromium and arsenic removal rates (96%, 92% and 98%, respectively) were obtained by Fomitopsis palustris. Process II could be a very valuable method for metal removal from CCA-treated wood when F. palustris is used. Our results also suggest that oxalic acid produced from fungus can be used as an alternative to commercial oxalic acid.

Original language	English
Pages (from-to)	673-679
Number of pages	7
Journal	Environmental Technology
Volume	30
Issue number	7
DOIs	https://doi.org/10.1080/09593330902858906
Publication status	Published - 2009 Jun

Bibliographical note

Funding Information:
This work was supported by the Korea Research Foundation Grant funded by the Korean Government (KRF-2008-313-F00056) and the KTOL grant funded by The National Institute of Biological Resources, Korean Government.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

Bioremediation
Brown rot fungi
CCA-treated wood
Fomitopsis palustris
Oxalic acid
Polyporales

ASJC Scopus subject areas

Environmental Chemistry
Water Science and Technology
Waste Management and Disposal

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10.1080/09593330902858906

Cite this

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title = "Improving the efficiency of metal removal from CCA-treated wood using brown rot fungi",

abstract = "The purpose of this study was to evaluate the bioremediation of CCA-treated wood wastes by brown rot fungi, as well as to improve the metal removal from treated wood by altering an existing bioremediation process. In Process I, CCA-treated wood sawdust was added and bioremediated after accumulating oxalic acid in a fermentation broth. In Process II, simplification of the bioremediation process and improvement of metal removal efficiency were attempted. Thus, the treated sawdust and fungal inocula were simultaneously placed in a fermentation broth. In addition, the efficiency of the fermentation broth containing oxalic acid was compared with that of commercial oxalic acid. The results obtained using Process I showed that the greatest reduction in arsenic and chromium (98% and 91%, respectively) was achieved by an unknown Polyporales species. On the other hand, the most efficient removal of copper (82%) was achieved by Daedalea dickinsii, which had the lowest oxalic acid production. Using Process II, the highest copper, chromium and arsenic removal rates (96%, 92% and 98%, respectively) were obtained by Fomitopsis palustris. Process II could be a very valuable method for metal removal from CCA-treated wood when F. palustris is used. Our results also suggest that oxalic acid produced from fungus can be used as an alternative to commercial oxalic acid.",

keywords = "Bioremediation, Brown rot fungi, CCA-treated wood, Fomitopsis palustris, Oxalic acid, Polyporales",

author = "Kim, {Gyu Hyeok} and Choi, {Yong Seok} and Kim, {Jae Jin}",

note = "Funding Information: This work was supported by the Korea Research Foundation Grant funded by the Korean Government (KRF-2008-313-F00056) and the KTOL grant funded by The National Institute of Biological Resources, Korean Government. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

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AB - The purpose of this study was to evaluate the bioremediation of CCA-treated wood wastes by brown rot fungi, as well as to improve the metal removal from treated wood by altering an existing bioremediation process. In Process I, CCA-treated wood sawdust was added and bioremediated after accumulating oxalic acid in a fermentation broth. In Process II, simplification of the bioremediation process and improvement of metal removal efficiency were attempted. Thus, the treated sawdust and fungal inocula were simultaneously placed in a fermentation broth. In addition, the efficiency of the fermentation broth containing oxalic acid was compared with that of commercial oxalic acid. The results obtained using Process I showed that the greatest reduction in arsenic and chromium (98% and 91%, respectively) was achieved by an unknown Polyporales species. On the other hand, the most efficient removal of copper (82%) was achieved by Daedalea dickinsii, which had the lowest oxalic acid production. Using Process II, the highest copper, chromium and arsenic removal rates (96%, 92% and 98%, respectively) were obtained by Fomitopsis palustris. Process II could be a very valuable method for metal removal from CCA-treated wood when F. palustris is used. Our results also suggest that oxalic acid produced from fungus can be used as an alternative to commercial oxalic acid.

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Improving the efficiency of metal removal from CCA-treated wood using brown rot fungi

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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