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| 表层土壤中菲的紫外光降解研究 | |
| 引用本文： | 张利红,陈忠林,徐成斌,李雪梅,李培军. 表层土壤中菲的紫外光降解研究[J]. 农业环境科学学报, 2009, 28(6) |
| 作者姓名： | 张利红 陈忠林 徐成斌 李雪梅 李培军 |
| 作者单位： | 1. 辽宁大学环境学院,辽宁沈阳,110016;中国科学院沈阳应用生态研究所,辽宁沈阳,110036 2. 辽宁大学环境学院,辽宁沈阳,110016 3. 沈阳师范大学化学与生命科学学院,辽宁沈阳,110034 4. 中国科学院沈阳应用生态研究所,辽宁沈阳,110036 |
| 基金项目： | 国家重点基础研究发展规划(973计划) |
| 摘 要： | 多环芳烃化合物(PAHs)由于致癌、致畸和致突变而受到广泛关注.本实验以多环芳烃菲(Phe)为目标污染物,研究了温度、腐植酸和紫外辐射强度对Phe光降解的影响并对不同因素对降解动力学的影响作了研究.结果表明,Phe的降解在20 ℃到30℃范围内,随着温度的升高,光降解率增加;腐植酸在Phe污染土壤的光降解中起敏化作用,可显著促进光解,腐植酸浓度为5 mg·kg-1足以达到敏化的效果;Phe光降解速率常数随辐射强度的降低而降低,呈正相关,光解的半衰期随着辐射强度的降低而增加,呈负相关. |
| 关 键 词： | 菲 光降解 土壤 腐植酸 紫外光 |
The Photodegradation of Phenanthrene on Soil Surface Under UV Light |
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| ZHANG Li-hong,CHEN Zhong-lin,XU Cheng-bin,LI Xue-mei,LI Pei-jun. The Photodegradation of Phenanthrene on Soil Surface Under UV Light[J]. Journal of Agro-Environment Science( J. Agro-Environ. Sci.), 2009, 28(6) | |
| Authors: | ZHANG Li-hong CHEN Zhong-lin XU Cheng-bin LI Xue-mei LI Pei-jun |
| Affiliation: | 1.School of Environmental Science;Liaoning University;Shenyang 110016;China;2.Institute of Applied Ecology;Chinese Academy of Sciences;Shenyang 110036;3.College of Chemistry and Life Science;Shenyang Normal University;Shenyang 110034;China |
| Abstract: | Polycyclic aromatic hydrocarbons (PAHs) are a group of major contaminants that are ubiquitous in the environment due to their toxicity, mutagenicity and carcinogenicity. This paper studied the soil borne PAHs photodegradation under UV irradiation with phenanthrene(Phe) as target contaminants. The effects of temperature,humic acids(HA)and the intensity of UV irradiation on the Phe photodegradation were investigated. The dynamics of photodegradation of Phe were studied under different conditions. The results ... |
| Keywords: | phenanthrene photodegradation soil surface humic acids UV light |
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