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铁氧化物复合氧化铝催化臭氧化过程中溴酸盐的生成控制

Keywords: 饮用水处理,催化臭氧化,铁基复合氧化铝小球,溴酸盐控制

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Abstract:

以市售活性炭、硅藻土和氧化铝小球为载体,考察了负载铁基活性组分对催化臭氧化过程中溴酸盐的控制情况,其中,铁基复合氧化铝小球体现出更好的溴酸盐还原特性和催化剂稳定性,证实催化剂中铁氧化物是溴酸盐得到有效控制的主要活性组分。进一步考察了铁基复合氧化铝小球催化臭氧化处理实际原水过程中对溴酸盐的生成控制,以及反应过程中溶解性有机碳(DOC)的去除情况。结果表明,与单独臭氧化相比,该催化剂既能有效去除水中的溶解性有机物,又能明显抑制溴酸盐的生成,反应50h,其活性并没有明显下降。催化剂失活主要归因于吸附位点数量的下降,可以通过负载铁氧化物来实现催化剂的再生。

References

[1]  Legube B., Leiuter N. K. V. Catalytic ozonation: A promising advanced oxidation technology for water treatment. Catalysis Today, 1999, 53 (1): 61-72
[2]  吴亚西, 陆美自. 臭氧分析方法的研究. 中国自然医学杂志, 2002, 4 (4): 227-229 Wu Y. X., Lu M. Z. Study on the methods for the determination of ozone. Chinese Journal of Natural Medicine, 2002, 4 (4): 227-229 (in Chinese)
[3]  王祖琴, 李田. 含溴水臭氧化过程中溴酸盐的形成与控制. 净水技术, 2001, 20 (2): 7-11 Wang Z. Q., Li T. Formation and control of bromate during ozonation of drinking water. Water Purification Technology, 2001, 20 (2): 7-11 (in Chinese)
[4]  王扬, 田一梅. 饮用水消毒技术现状及未来发展. 安徽农业科学, 2007, 35 (5): 1471-1472 Wang Y., Tian Y. M. The disinfection technology status and future development of drinking water. Journal of Anhui Agricultural Sciences, 2007, 35 (5): 1471-1472 (in Chinese)
[5]  王晓昌. 臭氧处理的副产物. 给水排水, 1998, 24 (12): 75-77 Wang X. C. The byproducts of ozonation. Water & Wastewater Engineering, 1998, 24 (12): 75-77 (in Chinese)
[6]  Kurokawa Y., Hayashi Y., Maekawa A., et al. Carcinogenicity of potassium bromate administered orally to F334 Rats. Journal of the National Cancer Institute, 1983, 71 (5): 965-972
[7]  Bonacquisti T. P. A drinking water utility\'s perspective on bromide, bromate, and ozonation. Toxicology, 2006, 221 (2-3): 145-148
[8]  Von Gunten U., Hoigne, J. Bromate formation during ozonation of bromide-containing waters: Interaction of ozone and hydroxyl radical reactions. Environmental Science & Technology, 1994, 28 (7): 1234-1235
[9]  Siddiqui M. S., Amy G. L., Rice R. G. Bromate ion formation: A critical-review. American Water Works Association, 1995, 87 (10): 58-70
[10]  Siddiqui M. S., Amy G. L. Factors affecting DBP formation during ozone-bromide reactions. American Water Works Association, 1993, 85 (1): 63-72
[11]  Krasner S. W., Glaze W. H., Weinberg H. S., et al. Formation and control of bromate during ozonation of waters containing bromide. American Water Works Association, 1993, 85 (1): 73-81
[12]  Beltran F. J., Rivas F. J., Montero-de-Espinosa R. Catalytic ozonation of oxalic acid in an aqueous TiO2 slurry reactor. Applied Catalysis B: Environmental. 2002, 39 (3): 221-231
[13]  Andreozi R., Insola A., GaPrio V., et al. The use of manganese dioxide as a heterogeneous catalyst for oxalic acid ozonation in aqueous solution. Applied Catalysis A: General, 1996, 138 (1): 75-81
[14]  Andreozzi R., CaPrio V., Insola A., et al. The ozonation of pyruvic acid in aqueous solutions catalyzed by suspended and dissolved manganese. Water Research, 1998, 32 (5): 1492-1496
[15]  Nyadenov A., Mehandjiev D. Complete oxidation of benzene on manganese dioxide by ozone. Applied Catalysis A: General, 1993, 97 (1): 17-22

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