書誌事項
- タイトル別名
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- Evaluation of Particle Release from Montmorillonite Gel by Flowing Groundwater Based on the DLVO Theory
- DLVO リロン ニ モトズク チカスイチュウ デノ モンモリロナイト ゲル カラノ リュウシ ノ ブンサン ニ カンスル ヒョウカ
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抄録
Theoretical study has been performed to clarify the ability of colloid release form the montmorillonite gel by the flowing groundwater. Evaluation of montmorillonite colloidal particles release from the bentonite buffer material is important for the performance assessment of radioactive waste disposal because the colloids may influence the radionuclide transport. In this study, the minimum groundwater flow rate required to tear off montmorillonite particles from surface of bentonite buffer was estimated from the shear stress on the gel front, which was calculated by the DLVO theory. The estimated shear force was converted to corresponding groundwater velocity by using Stoke's equation. The results indicated that groundwater velocity in a range of about 10−5 to 10−4 m/s would be necessary to release montmorillonite particles. This range is higher than the groundwater flow velocity found generally in deep geological media in Japan. This study suggests that the effect of montmorillonite particles release from the bentonite buffer on radionuclide transport is likely to be negligible in the performance assessment of high-level radioactive waste geological disposal.<br>
収録刊行物
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- 日本原子力学会和文論文誌
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日本原子力学会和文論文誌 6 (2), 205-213, 2007
一般社団法人 日本原子力学会
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詳細情報 詳細情報について
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- CRID
- 1390001205187343616
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- NII論文ID
- 10018763693
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- NII書誌ID
- AA11643165
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- COI
- 1:CAS:528:DC%2BD2sXhtVahu7rE
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- ISSN
- 21862931
- 13472879
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- NDL書誌ID
- 8884329
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可