238U、239Pu在板岩和土壤中迁移速度的实验模拟

邓晓颖; 庹先国; 李哲; 冷阳春; 田青青; 黄鹤翔

环境化学

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邓晓颖, 庹先国, 李哲, 冷阳春, 田青青, 黄鹤翔. 238U、239Pu在板岩和土壤中迁移速度的实验模拟[J]. 环境化学, 2012, 31(12): 1948-1952.

引用本文:

邓晓颖, 庹先国, 李哲, 冷阳春, 田青青, 黄鹤翔. 238U、239Pu在板岩和土壤中迁移速度的实验模拟[J]. 环境化学, 2012, 31(12): 1948-1952.

DENG Xiaoying, TUO Xianguo, LI Zhe, LENG Yangchun, TIAN Qingqing, HUANG Hexiang. Experimental simulation of 238U and 239Pu migration speed in shale and soil medium[J]. Environmental Chemistry, 2012, 31(12): 1948-1952.

Citation:

DENG Xiaoying, TUO Xianguo, LI Zhe, LENG Yangchun, TIAN Qingqing, HUANG Hexiang. Experimental simulation of 238U and 239Pu migration speed in shale and soil medium[J]. Environmental Chemistry, 2012, 31(12): 1948-1952.

238U、239Pu在板岩和土壤中迁移速度的实验模拟

1.
地质灾害防治与地质环境保护国家重点实验室, 成都理工大学, 成都, 610059;
2.
中国工程物理研究院, 绵阳, 621000
基金项目:
国家杰出青年科学基金(41025015)

国家自然科学基金(40974065)资助.

Experimental simulation of 238U and 239Pu migration speed in shale and soil medium

1.
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, 610059, China;
2.
China Academy of Engineering Physics, Mianyang, 621000, China
Fund Project:

摘要: 以西南某低放废物处置库地质环境中板岩和土壤介质为研究对象,开展了238U和239Pu核素在这两种地质介质中的动态迁移实验研究,通过氚穿透实验(地下水流速=1 mL·min-1、实验柱连续淋洗时间=180 d)得到氚在板岩中的弥散系数DL为0.027 cm2·min-1,弥散度αL为0.324 cm,在土壤中的弥散系数DL为0.064 cm2·min-1,弥散度αL为0.895 cm.通过淋滤实验(地下水流速=0.1 mL·h-1、实验柱连续淋洗时间=350 min),得到了238U在板岩和土壤介质中的迁移速度分别为6.1—8.1 cm·a-1和7.3—8.5 cm·a-1,239Pu在板岩和土壤介质中的迁移速度分别为4.1—6.1 cm·a-1和3.7—4.9 cm·a-1.
- 放射性废物 /
- ²³⁸U /
- ²³⁹Pu /
- 迁移速度
Abstract: In this paper, the dynamic migration experimental research work was carried out for 238U and 239Pu nuclides in shale and soil geological medium from a low level radioactive waste repository site in southwest China. Diffusion coefficient DL and degree of dispersion (αL) of tritium were obtained through the tritium penetration experiment. In shale, DL value is 0.027 cm2·min-1and αL is 0.324 cm. In soil, DL value is 0.064 cm2·min-1 and αL is 0.895 cm. By the leaching experiment, the migration speed of 238U in shale and soil medium were 6.1—8.1 cm·a-1 and 7.3 —8.5 cm·a-1, and the migration speed of 239Pu in shale and soil medium were 4.1—6.1 cm·a-1 and 3.7 — 4.9 cm·a-1 respectively.
- radioactive waste /
- ²³⁸U /
- ²³⁹Pu /
- migration speed

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238U、239Pu在板岩和土壤中迁移速度的实验模拟

1. 地质灾害防治与地质环境保护国家重点实验室, 成都理工大学, 成都, 610059;
2. 中国工程物理研究院, 绵阳, 621000

收稿日期: 2012-03-14

基金项目:

国家杰出青年科学基金(41025015)

国家自然科学基金(40974065)资助.

关键词:

摘要: 以西南某低放废物处置库地质环境中板岩和土壤介质为研究对象,开展了238U和239Pu核素在这两种地质介质中的动态迁移实验研究,通过氚穿透实验(地下水流速=1 mL·min-1、实验柱连续淋洗时间=180 d)得到氚在板岩中的弥散系数DL为0.027 cm2·min-1,弥散度αL为0.324 cm,在土壤中的弥散系数DL为0.064 cm2·min-1,弥散度αL为0.895 cm.通过淋滤实验(地下水流速=0.1 mL·h-1、实验柱连续淋洗时间=350 min),得到了238U在板岩和土壤介质中的迁移速度分别为6.1—8.1 cm·a-1和7.3—8.5 cm·a-1,239Pu在板岩和土壤介质中的迁移速度分别为4.1—6.1 cm·a-1和3.7—4.9 cm·a-1.

English Abstract

Experimental simulation of 238U and 239Pu migration speed in shale and soil medium

1. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu, 610059, China;
2. China Academy of Engineering Physics, Mianyang, 621000, China

Received Date: 2012-03-14

Fund Project:

Keywords:

Abstract: In this paper, the dynamic migration experimental research work was carried out for 238U and 239Pu nuclides in shale and soil geological medium from a low level radioactive waste repository site in southwest China. Diffusion coefficient DL and degree of dispersion (αL) of tritium were obtained through the tritium penetration experiment. In shale, DL value is 0.027 cm2·min-1and αL is 0.324 cm. In soil, DL value is 0.064 cm2·min-1 and αL is 0.895 cm. By the leaching experiment, the migration speed of 238U in shale and soil medium were 6.1—8.1 cm·a-1 and 7.3 —8.5 cm·a-1, and the migration speed of 239Pu in shale and soil medium were 4.1—6.1 cm·a-1 and 3.7 — 4.9 cm·a-1 respectively.

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238U、239Pu在板岩和土壤中迁移速度的实验模拟

Experimental simulation of 238U and 239Pu migration speed in shale and soil medium

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238U、239Pu在板岩和土壤中迁移速度的实验模拟

English Abstract

Experimental simulation of 238U and 239Pu migration speed in shale and soil medium

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