Degradation of acetone and isopropylalcohol in electronic wastewater using Fe- and Al-immobilized catalysts

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• 作者：Jeongyun Choi ; Joon-Hee Jeong ; Jinwook Chung ; ^{jin-wook.chung@samsung.com}
• 关键词：Acetone ; Advanced oxidation process (AOP) ; Electronic wastewater ; Hydrogen peroxide (H2O2) ; Isopropylalcohol
• 刊名：Chemical Engineering Journal
• 出版年：2013
• 出版时间：15 February, 2013
• 年：2013
• 卷：218
• 期：Complete
• 页码：260-266
• 全文大小：685 K

文摘

This paper describes a novel technology for the reuse of electronic wastewater by advanced oxidation process (AOP) using an Fe/Al-immobilized catalyst. The metal catalyst in the AOP improved the oxidation of low-molecular-weight organic compounds, such as acetone and isopropylalcohol, in electronic wastewater. The removal efficiency of acetone and isopropylalcohol were 78.5 % and 99.9 % , respectively. The optimal combination of metal catalysts in the oxidation of acetone was Fe and Al¡ª10 % Al in various Fe/Al catalysts. The optimal pH was less than 3, and the proper addition of H₂O₂ and catalysts was an important factor in the AOP. Using optimal metal catalysts, significant amounts of organic compounds were removed from raw electronic wastewater using a continuous flow reactor. We conclude that an AOP with a metal catalyst removes low-molecular-weight organic compounds (91 % removal efficiency of isopropylalcohol) and can be implemented as a wastewater treatment and reuse system.