飽和及未飽和地層之污染物傳輸行為研究－以蘭嶼貯存場為例

A Study for Contaminant Transport in Saturated and Unsaturated Layer at Lan Yu Site

李振誥(Cheng-Haw Lee) ； 周業泗(Yeh-Si Jou) ； 陳榮華(Rong-Hwa Chen) ； 葉義章(Yi-Jang Yeh)

《鑛冶：中國鑛冶工程學會會刊》 44卷2期 (2000/06) Pp. 140-147

https://doi.org/10.30069/MM.200006_44(2).0010

摘要

本研究藉由資料收集、室內與野外岩土樣實驗分析並應用擴散界面（diffusion interface）模式之模擬，探討水文地質特性、污染源釋放位置，吸附特性對污染物傳輸之影響。模擬傳輸之介質型態有多孔介質與破裂面介質兩種，本研究則以多孔介質來探討污染物傳輸行為，並採用SUTRA延散模式來模擬蘭嶼低放射性儲存場核種遷移情形，且以鍶（Sr+2）核種做案例分析。本文研究結果顯示，在地質分層及無裂隙影響情況下，蘭嶼貯場若發生污染物洩漏現象，則污染物質約在500天左右會傳輸至海岸地區。

關鍵字

飽和層 ； 未飽和層 ； 破裂岩層 ； 污染物傳輸

並列摘要

Most of models for predicting the behavior of contaminant transport are proposed, and the major paths for contaminant transport are porous media and fracture media. In this paper, the SUTRA dispersion model is applied to assess the effect on contaminant transport in terms of hydrogeology characteristics, the location of contaminant source and sorption, respectively. This model is based on the diffusion interface of contaiminant concentration in porous media. In case study, the radionuclide of strontium (Sr) is leaked into underground layer such ans rock talus, coral and andesite, and the strontium plume migrations accompanying with groundwater flow. Result indicated that the contaminant plume requires 500 days for migration from source to coast at Lan-Yu site.

並列關鍵字

Saturated layer ； Unsaturated layer ； Fractured rocks ； Contaminant transport