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    Please use this identifier to cite or link to this item: https://ir.fy.edu.tw:8080/ir/handle/987654321/2690

    Title: Transport of Organochlorine Pesticides in Soil Columns Enhanced by Dissolved Organic Carbon.
    Authors: Ding,Jiann-Yuan;Wu, Shian-Chee
    Contributors: 輔英科技大學 環境工程與科學系
    Keywords: Dissolved organic carbon (DOC);humic acid;hydrophobic organic contaminants;organochlorine pesticides (OCPs);soil column;partition coefficient;three-phase transport model.
    Date: 1997-07-01
    Issue Date: 2010-09-27 17:09:48 (UTC+8)
    Abstract: The objective of this study is to quantify the effects of humic acid solution infiltration on the transport of organochlorine pesticides (OCPs) in soil columns using a three-phase transport model. From experimental results, it is found that the dissolved organic carbon enhances the transport of OCPs in the soil columns. In the OCPs-only column, the concentration profiles of OCPs can be simulated well using a two-phase transport model with numerical method or analytical solution. In the OCPs-DOC column, the migrations of aldrin, DDT and its daughter compounds are faster than those in the OCPs-only column. The simulation with the three-phase model is more accurate than that with the two-phase model. In addition, significant decrease of the fluid pore velocities of the OCPs-DOC column was found. When DOC leachate is applied for remediation of soil or groundwater pollution, the decrease of mean pore velocities will be a crucial affecting factor.
    Relation: Water Science and Technology,Volume 35, Issue 7, Pages 139-145
    Appears in Collections:[環境工程與科學系] 期刊論文

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