Fundamental research to make asbestos harmless by laser irradiation
| Project/Area Number |
20310049
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Gunma National College of Technology |
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Principal Investigator |
KOJIMA Akira Gunma National College of Technology, 特命教授 (40042593)
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| Co-Investigator(Kenkyū-buntansha) |
FUJISHIGE Masao 群馬工業高等専門学校, 物質工学科, 准教授 (70218999)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2009: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2008: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
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| Keywords | アスベスト / レーザーによる分解 / スレートの迅速分解 / アスベストの無害化 / レーザー照射 / アスベストの分解 / スレートの迅速処理 / スレート / 高分解能電子顕微鏡 / レーザー / 無害 |
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| Research Abstract |
We investigated decomposition of composites containing asbestos by melting using laser irradiation. Many laser sources were compared and continuous and pulsed irradiation were tested, and we discovered that pulsed irradiation from a low-cost CO_2 laser can be used for processing. Various processing conditions were investigated with a small laser system with 50W output. We found a condition that allows a small laser system to process 5mm-thick asbestos, which is close to 6mm, the thickness of a slate. Observation by SEM of the processed region confirmed removal of asbestos.
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Report
(4 results)
Research Products
(5 results)
