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    Volume 37 Issue 5
    Sep.  2012
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    Article Contents
    LU Wen-xi, LUO Jian-nan, XIN Xin, CHEN She-ming, 2012. Numerical Simulation of Surfactant Enhanced Aquifer Remediation Processes at DNAPLs Contaminated Aquifer. Earth Science, 37(5): 1075-1081. doi: 10.3799/dqkx.2012.114
    Citation: LU Wen-xi, LUO Jian-nan, XIN Xin, CHEN She-ming, 2012. Numerical Simulation of Surfactant Enhanced Aquifer Remediation Processes at DNAPLs Contaminated Aquifer. Earth Science, 37(5): 1075-1081. doi: 10.3799/dqkx.2012.114

    Numerical Simulation of Surfactant Enhanced Aquifer Remediation Processes at DNAPLs Contaminated Aquifer

    doi: 10.3799/dqkx.2012.114
    • Received Date: 2011-05-09
      Available Online: 2021-11-10
    • Publish Date: 2012-09-15
    • According to the migration of water, surfactant, DNAPLs (dense nonaqueous phase liquid), and their interaction mechanism, a three-dimensional numerical simulation model was build to simulate the process of surfactant enhanced aquifer remediation at DNAPLs contaminated aquifer. The model was applied to a heterogeneous PCE-contaminated aquifer for simulating both the contamination process and remediation process. The result show that the numerical simulation model provided the mathematical description of migration and fate of NAPLs (nonaqueous phase liquids) in surfactant enhanced aquifer remediation processes, and with limited time and parameters it can depict NAPLs migration law in aquifer realistically and simulate surfactant remediation processes effectively. Moreover, the modeling results show that, it's removal efficiency is 63.5% after 40 days remediation due to the solubilization and mobilization of surfactant which is 32% higher than that of pump and treat (removal efficiency is 31.8%).

       

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