| 超声强化O3／H2O2降解咔唑的影响因素 |
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| 引用本文： | 周翠,籍国东. 超声强化O3／H2O2降解咔唑的影响因素[J]. 安徽农业科学, 2009, 37(15): 7153-7155 |
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| 作者姓名： | 周翠 籍国东 |
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| 作者单位： | 北京大学环境工程系,水沙科学教育部重点实验室,北京,100871 |
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| 摘 要： | 利用超声波强化O3／H2O2（US／O3／H2O2）反应器降解含咔唑废水，考察了pH值、水温、反应时间、臭氧投加量、过氧化氢投加量和超声作用功率对咔唑降解率的影响。结果表明，单独的超声或臭氧作用对咔唑的降解率远低于两者的协同作用，pH值、温度、反应时间和臭氧投加量增加均能显著提高咔唑的降解率。通过正交试验，得出最佳工艺条件．pH值为1：2，温度为60气，超声功率为40w，反应时间为20min，臭氧投加量为2g／h，30％过氧化氢投加量为3．75ml／L。
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| 关 键 词： | 超声强化 03/H2q氧化 咔唑 |
Influencing Factors of Carbazole Degradation by Ultrasound Enhanced O3/H2O2 Oxidation |
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| Affiliation: | ZHOU CUI et al (Deparment of Environmental Engineering, Peking University, Key laboratory of Water and Sediment Sciences, Ministry of Education, Beijing 100871) |
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| Abstract: | The degradation of carbazole by ultrasound enhanced O3/H2O2 oxidation was studied.The effect of pH,temperature,time,ozone inflow,H2O2 concentration and ultrasonic power on the decomposition of carbazole was investigated.It was found that the decomposition efficiency of carbazole by ultrasound alone or ozonation alone was worse than that of the synergetic.The decomposition efficiency increased with the increase of pH,temperature,time and ozone inflow.According to the orthogonal experiment,the optimum technology conditions were as follows:pH value of 12,temperature of 60 ℃,ultrasonic power of 40 W,reaction time of 20 min,ozone inflow of 2 g/h and H2O2 dosage of 3.75 ml. |
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| Keywords: | Ultrasound enhancement O3/H2O2 oxidation Carbazole |
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