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題名 | Removal of 2-Chlorophenol from Wastewater Using the Ultrasonic/Fenton Process=以超音波/Fenton程序處理鄰氯酚溶液之研究 |
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作者 | 馬英石; 林志高; | 書刊名 | 中國環境工程學刊 |
卷期 | 8:3 1998.09[民87.09] |
頁次 | 頁215-226 |
分類號 | 445.463 |
關鍵詞 | 鄰氯酚; Fenton程序; 超音波; 2-chlorophenol; Fenton; Ultrasound; |
語文 | 英文(English) |
中文摘要 | 鄰氯酚為一毒性物質,可經由肥料、石化廢水或含有腐植質類原水加氯後產生。 由於鄰氯酚具有毒性, 同時也認定為可能致癌之物質,因此本研究以超音波人 /FentOn 程 序對鄰氯酚進行氧化分解反應。反應之主要變化因子為過氧化氫以及亞鐵離子的添加量。根 據實驗結果,鄰氯酚的分解率以及礦化率均隨著過氧化氫以及亞鐵離子添加濃度的增加而增 加。 當過氧化氫的濃度大於 50mg/L, 亞鐵離子濃度為 10mg/L 時,鄰氯酚的分解率在 90 分鐘反應後可達到 99 %以上,同時礦化率也在 80 %以上。反應過程中鄰氡酚之分解及過 氧化氫之消耗可利用一階模式加以模擬,其反應常數值隨過氧化氫以及亞鐵離子添加量的提 高而提高。 氧化還原電位 (ORP) 的變化與鄰氯酚的分解量及過氧化氫的消耗量呈現線性之 關係。 |
英文摘要 | Using the ultrasonic/Fenton oxidation to remove 2-chlorophenol (2-cp) from wastewater was presented in this paper. The influence of the concentrations of ferrous iron (Fe �� +) and hydrogen peroxide (H �� O �� ) on the removal of 2-cp was investigated. Laboratory results indicate that the percentage of 2-cp decomposition increases for higher concentrations of Fe �� + and H �� O �� applied. As the concentration of H �� O �� exceeds 50mg/L, more than 99% of 2-cp is decomposed and 80% is mineralized.The decomposition of 2- cp and utilization of H �� O �� fit well with a firstorder kinetic equation, and the reaction rate constants depend on the concentrations of Fe �� + and H �� O �� applied. With increasing doses of Fe �� + and H �� O ��, the observed reaction rate constants of 2-cp decomposition isindeed increased. Variations of the monitored ORP (oxidation reduction potential) values are significantly related to the extent of 2-cp removal. |
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