| UV/O3法降解乙酸的影响因素 |
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| 引用本文： | 康春莉,唐晓剑,郭平,郭晶,于宏兵. UV/O3法降解乙酸的影响因素[J]. 吉林大学学报(理学版), 2008, 46(1): 162-165 |
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| 作者姓名： | 康春莉 唐晓剑 郭平 郭晶 于宏兵 |
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| 作者单位： | 吉林大学,环境与资源学院,长春,130012;吉林大学,环境与资源学院,长春,130012;吉林大学,环境与资源学院,长春,130012;吉林大学,环境与资源学院,长春,130012;吉林大学,环境与资源学院,长春,130012 |
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| 基金项目： | 国家自然科学基金（批准号：20577014）. |
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| 摘 要： | 利用UV/O3法对糠醛废水中的乙酸进行光氧化降解实验. 讨论了pH值、 光源、 阴阳离子等因素对乙酸降解速率的影响. 结果表明, 以高压汞灯(400 W)为光源, 对500 mL浓度为8 mmol/L的乙酸溶液, 在温度为(35±2) ℃、 O3含量为0.1 mg/L, pH值为2.2的条件下, 乙酸降解效果最佳. 在此条件下, 300 min内溶液中乙酸和TOC降解率分别为86%和74%. 在所考察浓度范围内, 乙酸的降解符合零级动力学模式.
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| 关 键 词： | UV/O3 乙酸 糠醛废水 光降解 |
| 文章编号： | 1671-5489（2008）01-0162-04 |
| 收稿时间： | 2007-06-15 |
| 修稿时间： | 2007-06-15 |
Influencing Factors of Photodegradation of Acetic Acid by UV/O3 Processes |
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| KANG Chun-li,TANG Xiao-jian,GUO Ping,GUO Jing,YU Hong-bing. Influencing Factors of Photodegradation of Acetic Acid by UV/O3 Processes[J]. Journal of Jilin University: Sci Ed, 2008, 46(1): 162-165 |
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| Authors: | KANG Chun-li TANG Xiao-jian GUO Ping GUO Jing YU Hong-bing |
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| Affiliation: | College of Environment and Resources, Jilin University, Changchun 130012, China |
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| Abstract: | Acetic acid is the most important component of furfural wastewater, which was degraded by UV/O3 method. Effects of pH value, light intensity and negative and positive ions on the reaction were investigated. The results show the optimal conditions of the photodegradation reaction of 500 mL of 8 mmol/L acetic acid were pH=2.2, the temperature was (35±2) ℃ and the supplyof O3 was 0.1 mg/L under 400 W ultraviolet radiation. Under those conditions, the disposal rates of acetic acid and TOC reached 86% and 74% within 300 min. The degradation course obeys the zero order kinetic equation. |
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| Keywords: | UV/O3 acetic acid furfural wastewater photodegradation |
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