Development of instant identification method of CCA treated lumber by laserinduced breakdown spectroscopy
| Project/Area Number |
23658141
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Wood science
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
HATTORI Nobuaki 東京農工大学, 大学院・農学研究院, 教授 (90115915)
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| Co-Investigator(Kenkyū-buntansha) |
ANDO Keisuke 東京農工大学, 大学院・農学研究院, 助教 (70262227)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | CCA / 保存処理木材 / 廃材 / クロム / ヒ素 / 識別 / YAGレーザ / LIBS / 廃棄処理 / レーザ誘起分光法 / 薬剤 |
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| Research Abstract |
Waste CCA-treated wood must be separated from other treated wood because of environmental pollution by chromium and arsenic when it is incinerated by the regulation. Therefore, a method to identify CCA-treated wood at a demolition site was developed using laser induced breakdown spectroscopy (LIBS). Fluorescence from the plasma was collected by an ellipsoidal mirror and analyzed by a spectrometer in the range of 190-300 nm. The results showed that the 228.8 nm line from As and 267.8 nm line from Cr were useful for the identification of CCA-treated wood. As the discrimination capacity was confirmed by the elemental composition analysis by X-ray fluorescence, it was concluded that LIBS can specifically identify CCA treated wood.
But, we failed to develop a compact LIBS apparatus usable in a demolition site because of design mistake.
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Report
(3 results)
Research Products
(6 results)
