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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Zhao Wang Liwei Xiao Xiaoxing Zhu Honghan Chen Jiansheng Shi Zhaoji Zhang Yuhong Fei Yasong Li Feng'e Zhang Jingsheng Chen |
| Copyright Year | 2011 |
| Description | Author affiliation: Inst. of Hydrogeology & Environ. Geol., Shijiazhuang, China (Jiansheng Shi; Zhaoji Zhang; Yuhong Fei; Yasong Li; Feng'e Zhang; Jingsheng Chen) || Sch. of Water Resources & Environ., China Univ. of Geosci., Beijing, China (Zhao Wang; Liwei Xiao; Xiaoxing Zhu; Honghan Chen) |
| Abstract | During the transport of organic contaminants from river to groundwater, there is natural attenuation of contaminants resulting from volatilization, biodegradation, dilution, and sorption of organic contaminants to soils. In this study, the distribution and natural attenuation of organic contaminants in the sites along Cihe River, in the piedmont plain of Taihang Mountains, was investigated. The results of collected samples of soil, river water, and groundwater indicated that the main organic contaminant groups showed in different media are quite similar. The main organic contaminants detected in different media include hydrocarbons, chlorinated hydrocarbons, polycyclic aromatic hydrocarbons (PAHs), and pesticides. The experimental results of toluene and trichloroethylene (TCE) indicated that sorption of organic contaminants is a main natural attenuation process. The soils taken near ground surface showed a higher sorption capacity for toluene and TCE than that of the deep soils. In the experimental concentration range, sorption of organic contaminants to minerals, especially TCE, plays an important role in the overall sorption. Sorption of toluene to soils showed high nonlinearity, but linear sorption of TCE to soils was observed. There was a closer relationship between sorption affinity and soil organic carbon content for toluene than that for TCE. This indicated that sorption process was also significantly influenced by the properties (e.g., molecular structure, hydrophobicity). |
| Starting Page | 181 |
| Ending Page | 184 |
| File Size | 107746 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781612843391 |
| e-ISBN | 9781612843407 |
| DOI | 10.1109/ISWREP.2011.5892975 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-05-20 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Groundwater contamination Sorption Natural attenuatio Vadose zone Organic contaminant Soil Hydrocarbons Attenuation Rivers Compounds Contamination Water resources |
| Content Type | Text |
| Resource Type | Article |
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