Mathematical Modei of In-situ Ozonation for the Remediation of 2-Chlorophenol Contaminated Soil  

作　　者：张晖 宋孟浩 黄金宝 

机构地区：[1]Department of Environmental Science and Engineering, Wuhan University, Wuhan 430072, China [2]Department of Civil and Environmental Engineering, University of Delaware, Newark, Delaware 19716, USA

出　　处：《Chinese Journal of Chemical Engineering》2003年第5期555-558,共4页中国化学工程学报（英文版）

基　　金：China Scholarship Council(No.97842039);National Natural Science Foundation of China(No.20107005)

摘　　要：A microscopic diffusion-reaction modei was developed to simulate in-situ ozonation for the remediation of contaminated soil, i.e., to predict the temporal and spatial distribution of target contaminant in the subsurface. The sequential strategy was employed to obtain the numerical solution of the modei using finite difference method. A non-uniform grid of discretization points was emploved to increase the accuracy of the numerical solution by means of coordinate transformation. One-dimensional column tests were conducted to verify the modei. The column was packed with simulated soils that were spiked with 2-chlorophenol. Ozone gas passed through the column at a flow rate of 100ml·min-1. The residual 2-chlorophenol content at different depths of the column was determined at fixed time intervals. Compared the experimental data with the simulated values, it was found that the mathematical modei fitted data well during most time of the experiment.A microscopic diffusion-reaction model was developed to simulate in-situ ozonation for the remediation of contaminated soil, i.e., to predict the temporal and spatial distribution of target contaminant in the subsurface.The sequential strategy was employed to obtain the numerical solution of the model using finite difference method. A non-uniform grid of discretization points was employed to increase the accuracy of the numerical solution by means of coordinate transformation. One-dimensional column tests were conducted to verify the model. The column was packed with simulated soils that were spiked with 2-chlorophenol. Ozone gas passed through the column at a flow rate of 100 ml·min^-1. The residual 2-chlorophenol content at different depths of the column was determined at fixed time intervals. Compared the experimental data with the simulated values, it was found that the mathematical model fitted data well during most time of the experiment.

关 键 词：OZONATION in-situ soil remediation MODELING 2-CHLOROPHENOL 

分 类 号：X53[环境科学与工程—环境工程]