Study on numerical simulation of organic pollutant transport in groundwater northwest of Laixi

1Shandong Institute of Geological Survey, Jinan 250013, China. 2Institute of Marine Science and Technology, Shandong University, Qingdao 266237, China.3School of Civil Engineering, Shandong University, Jinan 250061, China.3Shandong Survey and Design Institute of Water Conservancy, Jinan 250013, China.

摘要

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Abstract: The construction and hydrogeological area in the low hill, which is northwest of Laixi City and in the east of Shandong Province more precisely, is one of Dagu River’s groundwater source. Regarding COD as the typical pollutant according to general situation of groundwater pollution in aforementioned area, a three-dimensional advection-dispersion model was established to simulate the transport of organic pollutants under two accident conditions. In addition, the effect of corresponding dispersity was analyzed. The results show that COD transport is mainly in accordance with the direction of groundwater flow, pollutant concentration and its gradient as well as the rule of narrower pollution range in deeper stratum. Moreover, COD is mainly transported and diffused in groundwater of sandy soil in the first and second layers. However, under accident condition II, the pollutant concentration begins to decay gradually after its transport and diffusion tends to be stable. Besides, in terms of dominance, dispersion is to transverse transport of pollutants what advection is to longitudinal transport. If considering random dispersion, the final results see higher peak concentration of COD and longer transverse distance from pollution center compared to transport route. What’s more, the pollution plume changes and concentration isocline becomes slightly irregular.
- COD /
- Advection-dispersion model /
- Law of transport and distribution /
- Dispersivity

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参考文献(20)

Rühle F A, Zentner N, Stumpp C. 2015. Influence of changes in water table level on solute transport in uniform porous media. Hydrological Processes, 29:875-888.

LIN Xue-yu. 1985. An approach to the models of contaminant transport through groundwater flow system. Journal of Jilin University (Earth Science Edition), 2:65-73.

ZHENG Chun-miao, Bennett G D. 2009. Applied contaminant transport modeling, 2nd edition. Beijing: Higher Education Press.

Szenknect S, Gaudet J P, Dewiere L. 2003. Evaluation of distribution coefficients for the prediction of strontium and cesium migration in a natural sand at different water contents. Journal De Physique IV, 107(1):1279-1282.

MENG Xiang-bin, HAN Jian-jiang, JIA Chao. 2015. Predication study on groundwater environment impact of a paper company relocation project in Zibo Development Zone. Land and Resources in Shangdong Province, 31(10):46-53.

Bear J. 1961. On the tensor form of dispersion in porous media. Journal of Geophysical Research, 66(4):1185-1197.

YI Li-xin, XU He. 2009. Numerical simulation of groundwater: Application foundation and examples of GMS. Beijing: Chemical Industry Press.

MEI Yi, WU Ji-chun. 2009. New method for reducing the numerical error in solving the problem of contaminant transport in groundwater. Advances in Water Science, 20(5):639-645.

LIN Guo-qing. 2003. Study on sustainable utilization of water resource of the ground-water storage in Dagu River. Qingdao: Ocean University of China.

Cherry J A, Barker J F. 1984. Contaminants in groundwater: Chemical process. Washing?ton: National Academy Press.

Foose G J, Benson C H, Edil T B. 2001. Predicting leakage through composite landfill liners. Journal of Geotechnical and Geoenvironmental Engineering, 127(6):510-520.

LIU Ting, XIAO Chang-lai et al. 2015. Research of groundwater solute transport forecast based on analytical method. Water Saving Irrigation, 2:47-49.

XUE Yu-qun, WU Ji-chun, XIE Chun-hong. 1997. Numerical simulation of groundwater pollution in a leaky aquifer system. Acta Geologica Sinica, 71(2):186-192.

HE Ben, JIA Chao, LIU Xin-yu, et al. 2014. Temporal and spatial distribution of groundwater and features of contaminant transport in Ji’nan spring area. Journal of Engineering Geology, 5: 981-988.

Simunek J, Sejna M, Van Genuchten M Th. 1999. The HYDRUS-2D software package for simulating water flow and solute transport in two-dimensional variably saturated media, Version 2.0. California: University of California Riverside, 1-253.

ZHAO Fei-yan. 2015. Determination of chemical oxygen demand in water by potassium dichromate method derivation of formulas. Water Resources & South to-North Water Diversion, 19: 48-49.

Bachmat Y. 1967. On the similitude of dispersion phenomena in homogeneous and isotropic porous media. Water Resources Research, 3(4):1079-1083.

MA Yu-jie. 2009. Water quality evaluation and human health risk assessment of Dagu River groundwater reservoir. Qingdao: Ocean University of China.

Voss B C I, Provost A M. 2002. SUTRA: A model for saturated-unsaturated, variable-density ground-water flow with solute or energy transport. Water Resources Investi?gations Report, 1-260.

Alshawabkeh A N, Rahbar N. 2006. Parametric study of one-dimensional solute transport in deformable porous media. Journal of Geotechnical and Geoenvironmental Engi-neering, 132(8):1001-1010.

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