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題名 | 水中銅離子(II)的活性炭吸附--二甲基乙二醛肟的增助作用 |
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作者 | 王萬拱; | 書刊名 | 國立屏東技術學院學報 |
卷期 | 3 1994.06[民83.06] |
頁次 | 頁171-179 |
分類號 | 445.25 |
關鍵詞 | 吸附; 螫合劑; Adsorption; Chelating agent; |
語文 | 中文(Chinese) |
中文摘要 | 研究以活性炭吸附除去水中Cu �杠插C在批式吸附實驗中,探討接觸時間,離子強 度,有機螫合分子等影響因素。 結果顯示接觸時間愈長,微量 Ca �杠插AMg �杠援M Fe �� �臚圻s在, 高離子強度(接觸時間 10 分鐘)及 Dimethylglyoxime ( Cu �杠散鬖梩� 2 倍)存在都可提高去除量。應用這些條件於地下水樣,實驗發現活性炭量愈多,接觸時間愈 長及 Dimethylglyoxime 存在都可提高去除率。在管柱吸附實驗中,活性炭的去除量呈隨流 出量增加而逐漸下降趨勢,平均每克活性炭去除 1.36 × 10 �笐藹J Cu �杠插]對蒸餾水樣 )和 1.63 × 10 �笐藹J Cu �杠插]對地下水樣), Dimethylglyoxime 可提高去除量,對 蒸餾水樣平均每克活性炭提高 29.4 %,對地下水樣提高 62.6 %。若應用本方法於水質淨 化, 以活性炭直接吸附則可行, 若欲添加 Dimethylglyoxime, 則尚需考慮 Dimethylglyoxime 是否殘留及毒性。 |
英文摘要 | Research was made for the removal of Cu �杠惠rom water by adsorption on activated carbon. First, the influences such as reaction period, ionic strength and organic chelating agents were conducted in batch experiments. Results showed that longer period, presence of minute Ca �杠�,Mg �杠� and Fe �杠�, and strong ionic strength (for ten minute period) were advantageous to removal, and that addition of dimethylglyoxime gave more efficient removal. These conditions were trially applied to sample prepared from groundwater. Results showed that more activated carbon, longer period and presence of dimethylglyoxime all gave higher efficiencies. In the column experiment, the removal efficiency of column tended to decrease slowly as more sample was flowed through. On average, 1.36 × 10 �� �� g of Cu �杠� was removed from distilled water sample per gram activated carbon and 1.63 × 10 �笐� g of Cu �杠� from groundwater sample. If dimethylglyoxime was added to sample, more Cu �杠� was removed per gram activated carbon. To use the method in water purification, direct adsorption by activated carbon is feasible. But, to use dimethylglyoxime, the completeness of removal and the toxicity of this compound must be further considered. |
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