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題 名 | 污染物質在夯實黏土中傳輸模式之解析解=An Analytical Solution of a Migration Model for Contrminated Solute in Compacted Calayey Soil |
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作 者 | 金永斌; 蕭達鴻; | 書刊名 | 中國環境工程學刊 |
卷 期 | 7:2 1997.06[民86.06] |
頁 次 | 頁161-172 |
分類號 | 445.545 |
關鍵詞 | 污染物傳輸模式; 土柱試驗; 解析解; Pollutant migration model; Soil column test; Analytical solution; |
語 文 | 中文(Chinese) |
中文摘要 | 本文所發展之數學模式可作為預測污染質在掩埋場址夯實土壤中傳輸行為之使用 ,為求得模式真正解,本文使用積分轉換法,而模式邊界條件,為使符合實際掩埋場址條件 ,設計成供水濃度隨時間之延長而逐漸遞減,文中並以實驗係數β值予以表示,為証實模式 正確性,並由三者文獻所提供土柱試驗結果予以實證。結果顯示,傳輸時間較長抑或平均流 速較低時,如不考慮β值因素將造成結果很大的偏差。而本文所發展的模式,經比較土柱試 驗結果, 其精確度將較 Cleary and Adriam (1973) 和 Lindstrom et al. (1967) 二者模 式要好,而就三者待驗證土柱試驗結果,經本文發展模式予以分析,發現模擬結果相當理想 。除此,本文亦進行遲滯因子和延數係數等二者參數之研究。 |
英文摘要 | The mathematical model developed in this paper may be used to predict the migration behavior of contaminants within the clayey liner inside a landfill. The integral transform method is used to obtain the exact solution. The boundary conditions of the model is designed to satisfy the actual landfill condition, so that the concentration of permeated liquid at the upper reservoir decreases as the migration period increases. To verify the accuracy of the model, the experimental results of three column tests in published literature are compared. The outcome shows that significant variation of the results may occur if the β effect is not taken into consideration for both long-term and low-average velocity testing. In comparison with the results obtained by Cleary and Adrian (1973) and Lindstrom et al. (1967), the accuracy of the model in this study is better. Simulation results of the model shows good agreement with the given column tests. In addition, both the retardation and dispersion coefficients are studied. |
本系統中英文摘要資訊取自各篇刊載內容。