Effective utilization of the excavatedsoils with natural contamination - Mechanism and design
| Project/Area Number |
23656296
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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 |
Geotechnical engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
乾 徹 京都大学, 地球環境学堂, 准教授 (90324706)
高井 敦史 京都大学, 地球環境学堂, 助教 (30598347)
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| Research Collaborator |
INUI Toru 京都大学, 地球環境学堂, 准教授 (90324706)
TAKAI Atsushi 京都大学, 地球環境学堂, 助教 (30598347)
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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 |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 地盤環境工学 / ジオシンセティッククレイライナー(GCL) / 透水試験 / 酸性廃水 / 重金属 / ベントナイト混合土 / 吸着試験 / 遮水層 / ジオシンセティッククレイライナー / 透水係数 / 酸性水 / GCL / 底部ライナー / 水酸化鉄 / ゼオライト |
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| Research Abstract |
This research aims to establish proper countermeasures for the utilization of soils and rocks potentially containing metals and/oracidity. From the experimental results, following issues were verified:
1) Geosynthetic clay liner(GCL) shows low hydraulic conductivity when the bentonite can be sufficiently swelled
2) GCL can perform relatively high metal attenuation capacity against the solutions containing metals and comparatively high acidity
3) Arsenic in a solution is immobilized on the other precipitated metals coexisting in the solution through a surface complexation reaction, and
4) A hydraulic conductivity of bentonite-based materials, such as GCL and soil-bentonite mixture, increased under the conditions thatthe swelling of bentonite is inhibited.
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Report
(3 results)
Research Products
(31 results)
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[Journal Article] Geosynthetic clay liner permeated withacid rock drainage: The role of iron in arsenic immobilization2012
Author(s)
Naka, A., Katsumi, T., Ohta, T., Flores, G., Inui, T., and Takai, A.
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Journal Title
Geosynthetics Engineering Journal
Volume: Vol.27
Pages: 39-46
Related Report
Peer Reviewed
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[Journal Article] Evaluation of mineral barriers against acid rock drainage, Geotechnical Engineering Journal2012
Author(s)
Naka, A., Katsumi, T., Inui, T., Flores, G., Ohta, T., Urakoshi, T., and Ishihara, T.
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Journal Title
Journal of the Southeast Asian Geotechnical Engineering Society
Volume: September Issue
Pages: 35-42
Related Report
Peer Reviewed
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[Journal Article] Mineral barriers against natural contamination from excavated rocks2012
Author(s)
Naka, A., Katsumi, T., Inui, T., Takai, A., Flores, G., and Ohta, T.
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Journal Title
Advances in Transportation Geotechnics II
Related Report
Peer Reviewed
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[Journal Article] Na-bentonite as rock containment barrier against heavy metals and acid leachates2011
Author(s)
Naka, A., Katsumi, T., Inui, T., Flores, G., and Ohta, T.
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Journal Title
GEOMATE 2011 - First International Conference on Geotechnique, Construction Materials & Environment (on CD)
Related Report
Peer Reviewed
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[Journal Article] Na-bentonite as rock containment barrier against heavy metals and acid leachates2011
Author(s)
Naka, A., Katsumi, T., Inui, T., Flores, G., and Ohta, T.
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Journal Title
GEOMATE 2011 - First International Conference on Geotechnique, Construction Materials & Environment
Volume: -
Related Report
Peer Reviewed
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[Presentation] Barrier performance of bentonite against acid rock drainage2011
Author(s)
Naka, A., Li, Z., Inui, T., Takai, A., Katsumi, K., and Ohta, T
Organizer
第46回地盤工学研究発表会
Place of Presentation
神戸国際会議場(神戸市)
Year and Date
2011-07-07
Related Report
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[Presentation] Bentonite Barrier against heavy metal and acid rock drainage2011
Author(s)
Naka, A., Katsumi, T., Inui, T., Li, Z., Takai, A., and Ohta, T.
Organizer
第17回地下水・土壌汚染とその防止対策に関する研究集会
Place of Presentation
サンピアン川崎(川崎市).
Year and Date
2011-06-16
Related Report
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