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題 名 | 硫酸亞鐵加藥量對Fenton法處理丙烯腈溶液之影響=Effect of Ferrous Sulfate Dosage on the Removal of Acrylonitrile from Aqueous Solution by Fenton Method |
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作 者 | 廖正宇; 張家源; 陳煜斌; 林彰泰; | 書刊名 | 嘉南學報 |
卷 期 | 28 2002.11[民91.11] |
頁 次 | 頁186-195 |
分類號 | 445.462 |
關鍵詞 | 丙烯腈; 總有機碳; Fenton; Microtox; Acrylonitrile; Total organic carbon; |
語 文 | 中文(Chinese) |
中文摘要 | 本研究以Fenton法處理丙烯?(Acrylonitrile)溶液,探討硫酸亞鐵加藥量對Fenton法處理丙烯?溶液之影響及Microtox生物毒性變化,另外並探討由Fenton反應後之pH值調整對丙烯?去除之影響。研究結果顯示Fenton法對丙烯?之處理效果在固定過氧化氫濃度下,其去除效果隨著硫酸亞鐵量整增加而喜加,其在本研究之硫酸亞鐵劑量範圍內之去除率最高可達85%,由此可知丙烯?在Fenton法處理下硫酸亞鐵量越高,丙烯?分解越完全。在硫酸亞鐵對Microtox毒性之影響實驗中,可發現Fenton反應後毒性比原來丙烯?強,但在沈澱過濾後毒性降低,其趨勢依加入之Fe□量越多,溶液之毒性也相對越強。因外,在發現pH=3時,其毒性以急毒性為主,而在pH由3調整至7後,其毒性以緩毒性為主。另以HPLC加以分析其主要產物,藉以了解生物毒性及其產物間之關係,結果發現丙烯?在Fenton法處理後濃度減少,但會產生使毒性增加之物種。 |
英文摘要 | In this study, Fenton reagent was used for the removal of acrylonitrile from aqueous solution. Effect of ferrous sulfate dosage on acrylonitrile removal and the toxicity of solution after Fenton reaction were evaluated. In addition, pH adjustment of solution after Fenton reaction to enhance the removal efficiency was also estimated. The experiment results showed that the removal efficiency increased with the increase in ferrous sulfate dosage, and the highest removal efficiency of 85% was obtained in the study. As for Microtox test, the toxicity of solution after Fenton reaction was larger than raw solution and the level increased with the increase in ferrous sulfate dosage. In fact, HPLC analysis showed that the concentration of acrylonitrile after Fenton reaction was lower than raw solution; moreover, some products existed in the solution. It indicated that the reaction products were more toxic than acrylonitrile. However, the toxicity was reduced after Fenton reaction followed the pH adjustment and settling. The results also showed that the Fenton reaction of solution resulted in the acute toxicity. On the other hand, the operation of Fenton reaction followed the pH adjustment and settling resulted in the chronic toxicity. |
本系統中英文摘要資訊取自各篇刊載內容。