| 强酸性电解水降解对硫磷动力学模型及降解产物 |
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| 引用本文： | 乌云达来, 梁铎, 郝建雄, 刘海杰. 强酸性电解水降解对硫磷动力学模型及降解产物[J]. 食品工业科技, 2018, 39(12): 63-68. DOI: 10.13386/j.issn1002-0306.2018.12.012 |
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| 作者姓名： | 乌云达来 梁铎 郝建雄 刘海杰 |
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| 作者单位： | 1. 呼和浩特民族学院环境工程系, 内蒙古呼和浩特 010051;2. 河北科技大学生物科学与工程学院, 河北石家庄 050018;3. 中国农业大学食品科学与营养工程学院, 北京 100083 |
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| 基金项目： | 内蒙古自治区高等学校科学研究项目(NJZY233)。内蒙古自治区自然科学基金项目(2015MS0210) |
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| 摘 要： | 为探明强酸性电解水(Strong acidic electrolyzed water,AcEW)对对硫磷的降解规律,在模拟水环境内进行了降解实验。结果显示,随着反应时间的延长或AcEW的有效氯质量浓度(ACC)的增加,对硫磷的降解效率将增加。AcEW对对硫磷的降解反应符合化学一级反应动力学及二级动力学模型。对硫磷在AcEW(pH3.0、有效氯浓度2 mg/L)中的一级反应动力学方程为ln([parathion]t/[parathion]0)=-0.0099t。通过GC-MS(气相色谱-质谱联用仪)分析,对硫磷被AcEW降解后的产物为对氧磷和4-硝基苯酚。在AcEW中,对硫磷可能的降解途径为对硫磷-对氧磷-4-硝基苯酚-小分子有机物-无机物。
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| 关 键 词： | 酸性电解水 对硫磷 动力学 降解产物 |
| 收稿时间： | 2017-07-14 |
Kinetic model and pathway of parathion degraded by electrolyzed oxidizing water |
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| WUYUN Da-lai, LIANG Duo, HAO Jian-xiong, LIU Hai-jie. Kinetic model and pathway of parathion degraded by electrolyzed oxidizing water[J]. Science and Technology of Food Industry, 2018, 39(12): 63-68. DOI: 10.13386/j.issn1002-0306.2018.12.012 |
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| Authors: | WUYUN Da-lai LIANG Duo HAO Jian-xiong LIU Hai-jie |
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| Affiliation: | 1. Department of Environmental Engineering, Hohhot Minzu College, Hohhot 010051, China;2. College of Bioscience and Bioengineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;3. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China |
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| Abstract: | To classify degradation rule of parathion in strong acidic electrolyzed water(AcEW),kinetic model and products of degradation reaction of parathion in strong acidic electrolyzed water(AcEW)were studied in this paper. Results showed that with the increasg of the reaction time and available chlorine concentration,the degradation efficiency of parathion was increasing in AcEW. Degradation reaction in AcEW was in accord with the chemical reaction kinetics. The first-order kinetic equation of degradation reaction in strong acidic electrolyzed water(AcEW)were ln([parathion]t/[parathion]0)=-0.0099t. Degradation products of parathion in AcEW could be paraoxon and 4-nitrophenol by GC-MS analysis. The possible degradation pathway of parathion in AcEW could be parathion-paraoxon-4-nitrophenol-small molecular-inorganic matter. |
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| Keywords: | strong acidic electrolyzed water parathion kinetic degradation products |
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