| K2FeO4去除水体中的邻仲丁基4,6-二硝基苯酚 |
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| 引用本文： | 曹刚, 罗恺, 邵基伦, 李紫惠, 李明玉, 任刚. K2FeO4去除水体中的邻仲丁基4,6-二硝基苯酚[J]. 环境工程学报, 2015, 9(11): 5403-5407. doi: 10.12030/j.cjee.20151143 |
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| 作者姓名： | 曹刚 罗恺 邵基伦 李紫惠 李明玉 任刚 |
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| 作者单位： | 1. 暨南大学环境学院, 广州 510632; 2. 广东省高校水土环境毒害性污染防治与生物修复重点实验室, 广州 510632 |
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| 基金项目： | 广东省科技计划项目(2011B030800009) |
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| 摘 要： | 以水体中的邻仲丁基4,6-二硝基苯酚(DNBP)为研究对象,考察了K2FeO4在不同温度、pH和共存成分等条件下对其去除效果。结果表明,K2FeO4去除水体中DNBP所需的适宜pH为6.0~7.0,适宜温度在25~35℃,且K2FeO4与DNBP摩尔比大于20:1时,DNBP降解率大于90.0%。水体pH接近中性时,共存成分NH4Cl、NaCl、NaNO3和MnCl2对K2FeO4去除DNBP的影响很小。此外,K2FeO4与DNBP摩尔比较大时,DNBP的准一级动力学降解速率常数k与pH的关系符合Gauss模型。
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| 关 键 词： | 高铁酸钾 环境激素 DNBP 速率常数 |
| 收稿时间： | 2014-09-10 |
Removal of 2-sec-butyl-4, 6-dinitrophenol in water by potassium ferrate |
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| Cao Gang, Luo Kai, Shao Jilun, Li Zhihui, Li Mingyu, Ren Gang. Removal of 2-sec-butyl-4, 6-dinitrophenol in water by potassium ferrate[J]. Chinese Journal of Environmental Engineering, 2015, 9(11): 5403-5407. doi: 10.12030/j.cjee.20151143 |
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| Authors: | Cao Gang Luo Kai Shao Jilun Li Zhihui Li Mingyu Ren Gang |
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| Affiliation: | 1. School of Environment, Jinan University, Guangzhou 510632, China; 2. Key Laboratory of Water/Soil Toxic Pollutants Control & Bioremediation of Guangdag High Education, Guangzhou 510632, China |
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| Abstract: | Experiment for oxidative degradation of 2-sec-butyl-4, 6-dinitrophenol(DNBP) using K2FeO4 was carried out in aqueous solution. The effects of reaction parameters on DNBP degradation were investigated by examining temperature, pH and coexisting constituents. The optimal conditions were an initial DNBP concentration of 0.1 mmol/L at pH of 6.0-7.0, temperature of 25-35℃ and molar ratio of 20:1 of K2FeO4:DNBP for 2 h. The DNBP removal was above 90.0% under the optimal conditions. The addition of NH4Cl, NaCl, NaNO3 and MnCl2 had no significant influence on DNBP removal at pH 7.0. In addition, the kinetic studies revealed that the relation between pseudo-first-order kinetic rate constant and pH could be briefly described by the Gauss model. These results contribute to DNBP removal in the water. |
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| Keywords: | potassium ferrate endocrine disrupting chemicals DNBP rate constant |
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