Degradation of chloramphenicol in aqueous solution using ozone oxidation in a two-phase system of water/loaded ozone organic solvent

Abstract

Abstract:

Using a two-phase system of water/perfluorodecalin organic solvent loaded ozone, degradation of chloramphenicol in aqueous solution was conducted.Due to perfluorodecalin has a high ozone stability and solubility, chloramphenicol was used to examine the efficiency of the two-phase ozonation system.During the experiments, effects of initial pH and free radical scavenger on the removal rate of chloramphenicol were investigated respectively.The results showed that the efficiency of two-phase ozonation was increased with the increase of initial pH in water.It was also observed that free radical scavenger had no significant negative effect in two-phase ozonation.

Key words: 臭氧氧化, 全氟萘烷, 两相臭氧化, 降解, 氯霉素

摘要：

以水/载O₃有机溶剂（全氟萘烷）为新型两相臭氧氧化体系，研究了臭氧在全氟萘烷中的溶解度和稳定性，并考察了pH、NaHCO₃和叔丁醇对两相体系中臭氧稳定性的影响；以水体中氯霉素为研究对象，考察了初始pH值和自由基抑制剂对两相臭氧氧化体系降解氯霉素效果的影响。结果表明：初始水相pH增大有利于氯霉素的降解；自由基抑制剂对两相体系氧化降解氯霉素影响不显著。

关键词: 臭氧氧化, 全氟萘烷, 两相臭氧化, 降解, 氯霉素

LI Shiyin, SHI Zhenyu, LU Jilai, ZOU Min, ZHANG Limin. Degradation of chloramphenicol in aqueous solution using ozone oxidation in a two-phase system of water/loaded ozone organic solvent[J]. CIESC Journal, 2011, 62(1): 226-230.

李时银, 史震宇, 陆继来, 邹敏, 张利民. 水/载O₃有机溶剂两相臭氧氧化法降解水体中氯霉素 [J]. 化工学报, 2011, 62(1): 226-230.

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