| 多环芳烃在黑土有机-矿质复合体中的老化行为 |
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| 引用本文： | 黄擎,李发生,陈洪.多环芳烃在黑土有机-矿质复合体中的老化行为[J].北京理工大学学报,2007,27(10):937-940. |
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| 作者姓名： | 黄擎 李发生 陈洪 |
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| 作者单位： | 北京理工大学,化工与环境学院,北京,100081;中国环境科学研究院,北京,100012;中国环境科学研究院,北京,100012;华美迅达科技(北京)有限公司,北京,102600 |
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| 基金项目： | 国家重点基础研究发展计划项目(2004CB418501)，国家自然科学基金资助项目(20677055) |
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| 摘 要： | 研究多环芳烃菲和蒽在黑土不同粒径有机-矿质复合体中的老化现象,采用二氯甲烷提取法测定老化后多环芳烃菲和蒽的可提取性,比较不同粒径有机-矿质复合体中老化的速率. 实验结果表明,老化90 d后,菲的可提取率下降10%,蒽的可提取率下降30%,粘粒级复合体中最初阶段(0～15 d)的老化速率最高,其余粒径复合体老化速率最高阶段基本都在15～28 d.
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| 关 键 词： | 菲 蒽 黑土 有机-矿质复合体 老化行为 |
| 文章编号： | 1001-0645（2007）10-0937-04 |
| 收稿时间： | 7/5/2007 12:00:00 AM |
| 修稿时间： | 2007-07-05 |
Aging Behaviour of Polycyclic Aromatic Hydrocarbons in Organo-Mineral Aggregates from Black Soil |
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| HUANG Qing,LI Fa-sheng and CHEN Hong.Aging Behaviour of Polycyclic Aromatic Hydrocarbons in Organo-Mineral Aggregates from Black Soil[J].Journal of Beijing Institute of Technology(Natural Science Edition),2007,27(10):937-940. |
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| Authors: | HUANG Qing LI Fa-sheng and CHEN Hong |
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| Institution: | 1. School of Chemical Engineering and Environment, Beijing Institute of Technology, Beijing 100081, China; 2. Chinese Research Academy of Environmental Sciences, Beijing 100012, China; 3. Sino-American Expressway Science Technology Co. Ltd, Beijing 102600, China |
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| Abstract: | Aging behaviour of polycyclic aromatic hydrocarbons(PAHs) phenanthrene and anthracene in organo-mineral aggregates from black soil were studied under laboratory incubation.Changes in their extractability and aging rate in different fractions of organo-mineral aggregates were determined through extraction by dichloromethane.After incubation for 90 days,the extractability of phenanthrene and anthracene were seen to be decreased about 10% and 30%,respectively.In clay fractions,the aging rate in the first period(from 0 to 15 days) appeared highest,while in the other three fractions,the higher aging rates existed basically in the period from 15 to 28 days. |
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| Keywords: | phenanthrene anthracene black soil organo-mineral aggregates aging behaviour |
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