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題名 | Study on the probability for Ethylenediaminetetraacetic Acid (EDTA) to Cleanup a Chromium Contaminated Soil=使用乙二胺四醋酸清理受鉻污染之土壤可行性探討 |
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作者 | 李可楠; Lee, Bing-nan; |
期刊 | 大仁學報 |
出版日期 | 19970300 |
卷期 | 15 1997.03[民86.03] |
頁次 | 頁31-43 |
分類號 | 434.223 |
語文 | eng |
關鍵詞 | 乙二胺四醋酸; 鉻; 污染; 土壤; Chromium; Contaminated soil; Ethylenediaminetetraacetic acid (EDTA); |
中文摘要 | 本研究利用土壤清洗來清理受鉻污染之土壤,萃取溶液總體積185公升,包括:純 水、鹽酸溶液(酸鹼值 1.5 )和乙二胺醋酸溶液( 150 毫克 / 升), 約佔總重量百分之 八十六之鉻離子自土壤中被清洗出來。由實驗數據得知,乙二胺四醋酸溶液無法單獨將吸附 在土壤顆粒表面上之鉻離子清除,且大部分鉻離子自土壤中萃出,係因酸性溶液之作用。此 外,鉻離子自土壤中清除之動力係數屬一階反應。 |
英文摘要 | The soil washing technology was developed to cleanup the chromium ions from the contaminated soil. Approximately 86% (by weight) of the chromium removed through the sequence with a total 185-L of extraction reagents, such as pure water, HCl solution (pH=1.5), and EDTA solution (150 mg/l). It was noted that by using the EDTA solution alone could not remove sufficient chromium contamination from the soil and most of the chromium ions extracted from the soil was effected by the acidic solution. The kinetic rate of the soil washing sequence was determined of the first order. |
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