2009 Fiscal Year Final Research Report
Evaluation of leaching mechanisms of benzalkonium chloride under the influence of soil or decayed wood components
| Project/Area Number |
20780131
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Wood science
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| Research Institution | Hokkaido Forest Products Research Institute |
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Principal Investigator |
MIYAUCHI Teruhisa Hokkaido Forest Products Research Institute, 性能部, 研究職員 (20446339)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 木材保存剤 / 保存処理木材 / 塩化ベンザルコニウム / 同族体 / 溶脱 |
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| Research Abstract |
To evaluate the leaching mechanism of benzalkonium chloride (BAC) from treated wood, leaching characteristics of BAC homologues (C12, C14 and C16) were investigated under various conditions. The leaching rates of the BAC homologues from treated wood in soil were much the same (C12≒C14≒C16). On the other hand, their leaching rates in deionized water were in the following order : C12 > C14 > C16. Results of leaching experiments using various leaching mediums, which contained decayed wood components, organic soil components, or inorganic salts, show that organic soil components accelerate the leaching of BACs ; the acceleration was in the following order : C16 > C14 > C12. Thus, these results indicate that the leaching of BAC homologues in soil is caused by the organic components of soil.
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