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| Simulation and analysis of PFCs migration in the soil column using the Hydrus-1D model |
| Received:November 29, 2017 |
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| KeyWord:PFCs;Hydrus-1D;soil;migration |
| Author Name | Affiliation | E-mail | | TAI Tuo-ya | China Institute for Geo-Environmental Monitoring, Beijing 100081, China | | | ZHENG Yue-jun | China Institute for Geo-Environmental Monitoring, Beijing 100081, China | zhengyj@mail.cigem.gov.cn | | WANG Jin-sheng | College of Water Science, Beijing Normal University, Beijing 100875, China | |
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| Abstract: |
| To better understand the migration of perfluorinated compounds (PFCs) in the soil and provide evidence for groundwater pollution prevention, perfluorobutyric acid (PFBA), perfluorohexanoic acid (PFHxA), perfluoroheptanoic acid (PFHpA), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), and perfluorooctane sulfonate (PFOS) were research subjects in this study. A one-dimensional soil column laboratory experiment was conducted to simulate the migration of PFCs. A soil water flow model and solute transport model were established using the Hydrus-1D model to simulate migration in the column experiment. The research results showed that the simulated values from the model coincided with the experimental data very well. Disturbing the water infiltration amount, soil bulk density, longitudinal dispersion, and Kd of PFCs in the Hydrus-1D model via the single factor local disturbance analysis method, comparing with the result of parameter original value and calculating sensitivity coefficient, the research results indicated that the water infiltration amount, soil bulk density, and sorption coefficient were the main influencing factors in the migration of PFCs in the analyzed soil test. |
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