| Catalytic ozonation of phenol in water with natural brucite and magnesia |
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| 作者姓名： | Kun HE Yuming DONG Lin YIN Aiming ZHANG Zhen LI |
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| 作者单位： | [1]Department of Earth Science, Nanjing University, Nanjing 210093, China [2]School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China |
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| 摘 要： | Catalytic ozonation has attracted much attention in treatment of wastewater for its mild conditions. Phenol and its ramifications are common components in a wide variety of wastewaters including those from coal conversion processes, coking plants, petroleum refineries and several chemical industries. In this paper, natural brucite and magnesia have been successfully used in catalytic ozonation of phenol. And the mechanisms of catalysis were also investigated. From Figs. 1 and 2, it can be found that both brucite and magnesia have remarkable catalysis on degradation of phenol and removal of Chemical Oxygen Demand （COD）. The pH of solutions on the process of ozonation alone, catalytic ozonation with brucites and with magnesia were 6.35-2.76, 10.18-8.52 and 10.58-10.83, respectively. It can be concluded that alkali environment plays a critical role for catalytic ozonation of phenol. We also found that the alkaline minerals reacted on the surface with oxalic acid and other low molecular-weight acids which are intermediate products in ozonation, but those intermediate products could be mineralized into carbon dioxide completely with enough ozonation time.
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| 关 键 词： | 催化作用 苯酚 氢氧镁石 镁氧 矿物 |
Catalytic ozonation of phenol in water with natural brucite and magnesia |
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| Kun HE Yuming DONG Lin YIN Aiming ZHANG Zhen LI.Catalytic ozonation of phenol in water with natural brucite and magnesia[J].Chinese Journal of Geochemistry,2006,25(B08):101-101. |
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| Abstract: | |
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| Keywords: | catalytic ozonation phenol brucite magnesia mineral |
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