| 紫外光活化过硫酸钠降解偏二甲肼 |
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| 引用本文： | 王坤,许国根,贾瑛,王爽.紫外光活化过硫酸钠降解偏二甲肼[J].化工环保,2019,39(2):168-171. |
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| 作者姓名： | 王坤 许国根 贾瑛 王爽 |
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| 作者单位： | 火箭军工程大学 导弹工程学院,陕西 西安,710025;火箭军工程大学 导弹工程学院,陕西 西安,710025;火箭军工程大学 导弹工程学院,陕西 西安,710025;火箭军工程大学 导弹工程学院,陕西 西安,710025 |
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| 摘 要： | 采用紫外光活化Na_2S_2O_8降解偏二甲肼(UDMH),考察了UDMH初始质量浓度、初始溶液pH、Na_2S_2O_8投加量、常见阴离子(NO_3^-,Cl^-,HCO_3^-)存在对UDMH去除效果的影响。结果表明:随着UDMH初始质量浓度从50 mg/L升至300 mg/L,UDMH降解速率常数由0.182 min-1降至0.015 min-1;初始溶液pH为9.0时,UDMH降解速率常数为0.087 min-1;随着Na_2S_2O_8投加量的增加,UDMH去除率升高,适宜的Na_2S_2O_8投加量为1.0 mmol/L;分别添加2 mmol/L常见的阴离子(NO_3^-,Cl^-,HCO_3^-)对UDMH降解效果没有明显的影响。
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| 关 键 词： | 偏二甲肼 紫外光 过硫酸钠 降解速率常数 |
| 收稿时间： | 2018-04-26 |
Degradation of unsymmetrical dimethylhydrazine by UV-activated sodium persulfate oxidation |
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| WANG Kun,XU Guogen,JIA Ying,WANG Shuang.Degradation of unsymmetrical dimethylhydrazine by UV-activated sodium persulfate oxidation[J].Environmental Protection of Chemical Industry,2019,39(2):168-171. |
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| Authors: | WANG Kun XU Guogen JIA Ying WANG Shuang |
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| Institution: | College of Missile Engineering,Rocket Force University of Engineering,Xi’an 710025,China |
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| Abstract: | Unsymmetrical dimethylhydrazine （UDMH）was degraded by UV-activated sodium persulfate （Na2S2O8）oxidation. The factores affecting the UDMH removal were investigated. The results showed that：The degradation rate constant of UDMH was reduced from 0.182 min-1 to 0.015 min-1 when the initial mass concentration of UDMH increased from 50 mg/L to 300 mg/L;The degradation rate constant of UDMH was 0.087 min-1 when the initial pH was 9.0;The removal rate of UDMH increased with the increase of Na2S2O8 amount,and the appropriate Na2S2O8 amount was 1.0 mmol/L;The addition of 2 mmol/L common anion（NO3–,Cl–,HCO3–）had no significant effect on UDMH degradation. |
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| Keywords: | unsymmetrical dimethylhydrazine ultraviolet light sodium persulfate degradation rate constant |
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