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| 題 名 | 合成吸附劑與活性碳進行吸附水中微量有機物之比較研究=Comparison of the Capability of Synthetic Adsorbent and Activated Carbon to Remove Trace Organics from Drinking Water Supply |
|---|---|
| 作 者 | 陳鴻烈; 鄭慧玲; 黃玉燕; 陳桂梅; 陳冠伃; | 書刊名 | 農林學報 |
| 卷 期 | 45:2 1996.06[民85.06] |
| 頁 次 | 頁1-14 |
| 分類號 | 445.463 |
| 關鍵詞 | 合成吸附劑; 活性碳; 劑量效應; pH值效應; 溫度效應; Synthetic adsorbent; Activated carbon; Dosage effect; pH effect; Temperature effect; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 在劑量效應方面,研究顯示在相同的時間與劑量條件下,IRA-458強鹼性陰離子交 換樹脂去除飲用水水源中微量有機物 TOC 的能力優於國產顆粒狀活性碳 G-840; 且在本研 究範圍( 2.0 ∼ 12.0g/L )下, 當 IRA-458 樹脂的劑量在 4.0g/L 以上時, 對有機物 TOC 的去除效率差異不大, 與 G-840 活性碳在相同範圍下,TOC 去除率受劑量的影響相當 大之結果截然不同。然而,活性碳劑量的增加,可減少 G-840 活性碳與 IRA-458 樹脂去除 有機物 TOC 之差距。 在 pH 值效應方面,則發現 IRA-458 樹脂之最佳 pH 值落於 8.0 左 右, 然而, pH=6.0 時之 TOC 去除率與 pH=8.0 時亦相去不遠, 故可知 pH 介於 6.0 ∼ 8.0 之間對 IRA-458 樹脂去除有機物 TOC 的效果影響不大。至於活性碳方面,結果顯示初 始 pH 值愈低,TOC 去除率愈佳, 當吸附達 120hrs 時,pH=2.0 之 TOC 去除率較 pH=8.0 的原水多了約 30 %。 在溫度效應方面, 發現無論是 IRA-458 樹脂或 G-840 活性碳均以 25 ℃時的吸附能力優於 35 ℃者,亦即低溫有利於吸附反應的進行。 |
| 英文摘要 | The effect of dosage on the adsorption of trace organics (TOC) from drinking water supply shows that the strong base anion exchanger (IRA-458) is much more than the native granular activated carbon (G-840) at same time and dose. In the range of 2.0 ∼ 12.0 g/L, the similar results or IRA-458 for removal of TOC are observed above 4.0 g/L, which is different from those of G-840, i.e., adsorption of TOC is significantly influenced by the dosage of G-840. However, the difference between G-840 and IRA-458 for removing TOC can be reduced by a higher dose. The effect of pH indicates that the optimum pH value of adsorption for IRA-458 is approximately 8.0. But, the absence of pronounced changes in the TOC removal efficiency over the 6.0 ∼ 8.0 pH range. As for G-840, data report the increase in the TOC removal with decreasing the pH. By the adsorption for 120 hrs, 88% TOC removals at pH 2.0 are obtained, while 57% TOC removals at pH 8.0 are achieved. The effect of temperature shows that an increase in temperature will result in a reduction of the equilibrium adsorptive capacity of IRA-458 or G-840, whereas lower temperatures will favor an increased capacity. |
本系統中英文摘要資訊取自各篇刊載內容。