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題 名 | 電動力處理重金屬污染土壤=Removal of Heavy Metals from Contaminated Soil by Electrokinetic Treatment |
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作 者 | 張博文; 譚義績; 王奕森; 林舜隆; 洪堅仁; | 書刊名 | 農業工程學報 |
卷 期 | 48:4 2002.12[民91.12] |
頁 次 | 頁56-66 |
分類號 | 445.6 |
關鍵詞 | 現場模場試驗; 電動力; 重金屬; 整治; Pilot test; Electrokinectic; Heavy metals; Remediation; |
語 文 | 中文(Chinese) |
中文摘要 | 本現場模場試驗主要為應用電動力法移除土壤中之重金屬,並探討當土壤遭受多種重金屬的衝擊時,各重金屬在電場下之移除效率評估。本試驗結果發現重金屬之移除效率與該金屬之氧化電位,離子形態,土壤的吸附容量,處理液之酸度及電場強度有直接的關係。電動力法藉由電滲透、電泳及電解等作用配合土壤化性的改善,證實能對土壤中有毒重金屬,如鉛、鎘及鉻等之有效移除。本試驗結果指出鉛、鎘及鉻之移除率分別為56.45%,21.89%及14.95%,且在適當的操作環境下,電動力法處理可為受重金屬污染土壤全面復育時整治工作規劃與設計之依據。 |
英文摘要 | This pilot test is to demonstrate the applicability of electrokinectic treatment on heavy metals removal, and also to evaluate the removal efficiency of individual metal when the impacted soil contains multiple species of heavy metals. As a result of the trial, it is found that the removal efficiency of heavy metals is affected by the redox potential, ionic form, sorption capacity to the soil, acidity of solution used in the treatment, and electricity density. Use of electro-osmosis, electrophoresis and electrolysis induced by electrokinectic, the treatment is identified to be an effective method to remove toxic metals as lead (Pb), cadmium (Cd), and chromium (Cr) with a slight improvement on chemical properties of soil. This trial results in the removal rates of 56.45%, 21.89% and 14.95% for Pb, Cd and Cr, respectively. The trial result can be used as a base for remedial design and planning for a full-scale soil cleanup of heavy metals. |
本系統中英文摘要資訊取自各篇刊載內容。