以Fe+3樹脂/H2O2觸媒系統氧化五氯酚之研究

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Title:	以Fe+3樹脂/H2O2觸媒系統氧化五氯酚之研究 Catalytic Oxidation of Pentachlorophenol by Fe+3-resin/H2O2 System
Authors:	王睿智 Jui-Chih Wang
Contributors:	劉瑞美嘉南藥理科技大學：環境工程衛生研究所
Keywords:	五氯酚樹脂觸媒地下水異相催化反應毒性 pentachlorophenol resin catalyst groundwater heterogeneous catalytic reaction toxicity
Date:	2003
Issue Date:	2008-10-08 15:45:33 (UTC+8)
Abstract:	本研究利用樹脂觸媒含浸氯化鐵充當異相催化反應之催化劑，藉以處理五氯酚水相污染。故本研究經由批次反應試驗探討該系統處理效率與最適操作條件。研究中設定參數包括：樹脂觸媒含浸劑濃度、觸媒添加劑量、雙氧水濃度、溶液起始pH值與氧化反應溫度等。實驗結果發現，以0.5M的FeCl3.6H2O2含浸濃度，0.5% (w/v)樹脂觸媒劑量、0.1M的H2O2劑量、起始pH值為7與反應溫度80 ℃時進行五氯酚氧化程序，。經由實驗結果證實，在Fe+3樹脂觸媒/H2O2系統中可將五氯酚之水相污染去除達到90%以上。且由於樹脂觸媒可回收再利用，減少處理成本，因而可望促使降低五氯酚水相污染整治復育之經費。而在生物毒性試驗上，在最佳操作條下進行之五氯酚氧化40分鐘後其毒性偵測值為0。最後在地下水模擬污染氧化處理，雖然牽涉地下水性質影響，但以Fe+3樹脂觸媒/H2O2系統處理仍可有效達到處理目的。 The object of this study was focused on the oxidation treatment of Pentachlorophenol (PCP) by utilizing the heterogeneous resin catalyst, that was preparing by the immersing method. The treatment efficiency and conditions was discussed in this investigation in a batch reactor. The influent factor of oxidation was considered with immersing concentration of doping salt, dosage of catalyst, concentration of hydrogen peroxide, initial pH, and reaction temperature in the heterogeneous oxidation. It was found that the best reaction condition was processed by 0.5M immersing concentration of doping salt 0.5 % (w/v) catalyst dosage, 0.1M H2O2, pH 7, and reaction temperature 80℃. It was also evidenced that the high conversion of pentachlorophenol can be achieved in aqueous solution. Fe+3or the economic consideration, the most advantage of resin catalyst was the high efficiency recycle used in the process and almost no side reaction in the process. Based on the kinetic analysis, the pseudo first order reaction can be described the degradation rate of pentachlorophenol in oxidation. Based on the result of microtox, it was indicated that the toxicity of oxidation product was almost decomposed after 40 minutes oxidation. The high efficiency of oxidation and toxicity test showed that the Fe+3 resin/H2O2 was well applied to oxidize pentachlorophenol from groundwater or industrial wastewater.
Relation:	校內公開，校外永不公開
Appears in Collections:	[Dept. of Environmental Engineering and Science (including master's program)] Dissertations and Theses

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