| Decoioration and mineralization of yeast wastewater by using Ce-Fe/Al2O3 as heterogeneous photo-Fenton catalyst |
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| 作者姓名： | 韦朝海 张亚平 吴超飞 胡成生 |
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| 作者单位： | School of Environmental Science and Engineering, South China University of Technology, Guangzhou 510640, China |
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| 基金项目： | Project（20277010） supported by the National Natural Science Foundation of China |
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| 摘 要： | Decoloration and mineralization of yeast wastewater were investigated by using Ce-Fe/Al2O3 as a heterogeneous photo-Fenton catalyst in fluidized bed reactor in order to solve the problem of yeast wastewater discharge. The experimental results were assessed in terms of total organic carbon（TOC） reduction. The operational and reaction conditions affecting the efficiencies of TOC removal such as initial pH value, H2O2 concentration, catalyst loading and UV power were studied. The results show that TOC is reduced from 347.6 mg/L to 10.8 mg/L, color is changed from 500 units to 0 under the conditions as follows： initial pH value 6. 0, H2O2 concentration of 1. 000 g/L, catalyst loading of 5 g/L, reaction duration of 120 rain and reaction temperature of 30 ℃. The irradiated Ce-Fe/Al2O3 catalyst was complexed with 1,10-phenanthroline and then it was subjected to Fourier transform infrared spectroscopy and diffuse reflectance spectroscopy to confirm the formation of Fe（Ⅱ） in the solid state. Heterogeneous photo-Fenton reaction proves to be effective for the treatment of yeast wastewater.
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| 关 键 词： | 氧化处理 发酵废水 Ce-Fe/Al2O3 催化剂 矿化作用 |
| 文章编号： | 1005-9784（2006）05-0481-05 |
| 收稿时间： | 2005-12-26 |
| 修稿时间： | 10 March 2006 |
Decoloration and mineralization of yeast wastewater by using Ce-Fe/Al2O3 as heterogeneous photo-Fenton catalyst |
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| Wei Chao-hai , Zhang Ya-ping , Wu Chao-fei and Hu Cheng-sheng.Decoioration and mineralization of yeast wastewater by using Ce-Fe/Al2O3 as heterogeneous photo-Fenton catalyst[J].Journal of Central South University of Technology,2006,13(5):481-485. |
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| Authors: | Wei Chao-hai Zhang Ya-ping Wu Chao-fei and Hu Cheng-sheng |
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| Affiliation: | (1) School of Environmental Science and Engineering, South China University of Technology, 510640 Guangzhou, China |
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| Abstract: | Decoloration and mineralization of yeast wastewater were investigated by using Ce-Fe/Al2O3 as a heterogeneous photo-Fenton catalyst in fluidized bed reactor in order to solve the problem of yeast wastewater discharge.
The experimental results were assessed in terms of total organic carbon(TOC) reduction. The operational and reaction conditions
affecting the efficiencies of TOC removal such as initial pH value, H2O2 concentration, catalyst loading and UV power were studied. The results show that TOC is reduced from 347.6 mg/L to 10.8 mg/L,
color is changed from 500 units to 0 under the conditions as follows: initial pH value 6.0, H2O2 concentration of 1.000 g/L, catalyst loading of 5 g/L, reaction duration of 120 min and reaction temperature of 30 °C. The
irradiated Ce-Fe/Al2O3 catalyst was complexed with 1,10-phenanthroline and then it was subjected to Fourier transform infrared spectroscopy and
diffuse reflectance spectroscopy to confirm the formation of Fe(II) in the solid state. Heterogeneous photo-Fenton reaction
proves to be effective for the treatment of yeast wastewater.
Foundation item: Project(20277010) supported by the National Natural Science Foundation of China |
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| Keywords: | oxidation processes yeast wastewater heterogeneous photo-Fenton Ce-Fe/Al2O3 catalyst |
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