| 引用本文: | 朱荣淑,刘贤博,何永兵,曹罡,欧阳峰.锰离子催化臭氧氧化气相丁醛[J].哈尔滨工业大学学报,2015,47(8):66.DOI:10.11918/j.issn.0367-6234.2015.08.013 |
| ZHU Rongshu,LIU Xianbo,HE Yongbing,CAO Gang,OUYANG Feng.The degradation of gas-phase butyraldehyde by Mn2+ catalytic ozonation[J].Journal of Harbin Institute of Technology,2015,47(8):66.DOI:10.11918/j.issn.0367-6234.2015.08.013 |
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| 摘要: |
| 为研究餐厨油烟中挥发性有机物（VOCs）的去除方法,以丁醛为目标污染物,考察了锰离子催化臭氧氧化对丁醛的降解效果,并考察了pH、催化剂浓度、\[O3\]/\[丁醛\]浓度比、温度、丁醛的初始浓度等因素对Mn2+催化臭氧氧化丁醛效果的影响.结果表明：Mn2+的加入可以显著提高丁醛的降解率,降解效率随\[O3\]/\[丁醛\]浓度比升高和丁醛浓度的降低而增大,随Mn2浓度和温度的增大先升高后降低,分别在浓度为1 mmol/L和温度为30 ℃时降解效果最好；存在最优pH,即pH=5时降解效果最好；在催化剂浓度为1 mmol/L、pH=5、丁醛初始浓度为50 mL/m3、\[O3\]/\[丁醛\]=0.2、温度为室温的条件下,丁醛的降解率可达94.67%,矿化率为91.8%. |
| 关键词: 臭氧 Mn2+ 催化氧化 餐厨油烟挥发性有机物 丁醛 |
| DOI：10.11918/j.issn.0367-6234.2015.08.013 |
| 分类号:X511 |
| 基金项目:深圳市科技研发资金(CXZZ20130516145955144,JCYJ2013032 9162012793) ;国家自然科学基金青年基金(20907012). |
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| The degradation of gas-phase butyraldehyde by Mn2+ catalytic ozonation |
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ZHU Rongshu1,2,LIU Xianbo1,HE Yongbing1,CAO Gang1,2,OUYANG Feng1,2
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(1.Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control（Harbin Institute of Technology Shenzhen Graduate School）, 518055 Shenzhen, Guangdong,China; 2.Public Platform for Technological Service in Urban Waste Reuse and Energy Regeneration, 518055 Shenzhen, Guangdong, China）
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| Abstract: |
| To study the VOCs removal in cooking oil fume, the degradation of butyraldehyde as the target pollutant by Mn2+ catalytic ozonation was studied, the reaction conditions that affect the removal efficiency of butyraldehyde including the presence or absence of Mn2+, pH, catalyst concentration, the initial concentration of butyraldehyde, \[O3\]/\[butyraldehyde\] concentration ratio, temperature were investigated . The results showed that: the addition of Mn2+ can significantly improve the removal efficiency of butyraldehyde, and the removal efficiency improved with the decrease of the concentration of butyraldehyde and the increase of \[O3\]/\[butyraldehyde\] concentration ratio. The degradation rate firstly increased then decreased with the increase of the concentration of Mn2+ and temperature, reaching the optimization when at 1 mmol/L and 30 ℃, respectively. The optimal pH existed, which is 5.When catalyst concentration was 1 mmol/L, pH =5,the initial concentration of the butyraldehyde 200 mL/m3,\[O3\]/\[butyraldehyde\]= 0.2, under the room temperature, the removal rate of butyraldehyde is 94.67%, mineralization is 91.8%. |
| Key words: ozone Mn2 + catalytic oxidation VOCs in cooking oil fume butyraldehyde |
