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| 人工湿地处理系统中多环芳烃的行为 | |
| 引用本文： | 刘操,王子健,许宜平,黄炳彬,李其军.人工湿地处理系统中多环芳烃的行为[J].环境工程学报,2006,7(11):62-65. |
| 作者姓名： | 刘操 王子健 许宜平 黄炳彬 李其军 |
| 作者单位： | 1. 中国科学院生态环境研究中心,北京,100085;北京市水利科学研究所,北京,100044 2. 中国科学院生态环境研究中心,北京,100085 3. 北京市水利科学研究所,北京,100044 |
| 摘 要： | 采用Oasis HLB柱固相萃取的前处理技术,以气相色谱质谱联用仪(GC/MS)的分析方法,对我国北方永定河上游黑土洼人工湿地中多环芳烃污染的特征以及分布规律进行了研究.结果表明,该湿地系统以低环数多环芳烃污染为主,其中浓度最高的是菲和蒽,未检出高环数(5环、6环)多环芳烃.通过比较进水和出水的浓度,湿地系统总体上不能有效去除进水中的多环芳烃.但是比较不同工艺单元进出水浓度,复氧、植物根系及微生物等均影响到多环芳烃的去除效果,去除率在28%～65%之间. |
| 关 键 词： | 多环芳烃 人工湿地 去除效果 |
| 文章编号： | 1008-9241(2006)11-0062-04 |
| 修稿时间： | 2006年7月31日 |
Behavior of polycyclic aromatic hydrocarbons in a constructed wetland treatment system |
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| Liu Cao,Wang Zijian,Xu Yiping,Huang Bingbin,Li Qijun.Behavior of polycyclic aromatic hydrocarbons in a constructed wetland treatment system[J].Techniques and Equipment for Environmental Pollution Control,2006,7(11):62-65. | |
| Authors: | Liu Cao Wang Zijian Xu Yiping Huang Bingbin Li Qijun |
| Abstract: | Solid phase extraction by Oasis HLB column and gas chromatograph-mass spectrometer(GC/MS)analysis were utilized to find the characteristics and concentration changes of polycyclic aromatic hydrocarbons(PAHs) in a constructed wetland located in the upstream of Yongding River in Beijing,China.The results indicated that the dominant PAHs were those less than 4 rings,in which concentrations of phenanthrene and anthracene were the most highest.High-rings PAHs(5-rings and 6-rings) could not be detected.The constructed wetland treatment system could not remove PAHs efficiently.However in comparisons among different processes,oxygenation,boots systems of plants and microbes should play major roles in the removal of OAHs,and the removal rates are between 28% and 65%. |
| Keywords: | polycyclic aromatic hydrocarbons constructed wetland removal efficiency |
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