›› 2015, Vol. 36 ›› Issue (S2): 345-350.doi: 10.16285/j.rsm.2015.S2.047

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental research on migrating characteristics of Sr and U in nonhomogeneous aquifer

CAI Guo-jun, YU Xiu-jing   

  1. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection，Chengdu University of Technology，Chengdu, Sichuan 610059，China
  • Online:2015-08-31 Published:2018-06-14

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Abstract: For the disorderly distributed nonlinear problems of groundwater flow field and its parameters, the migration of pollutants cannot obey the convection-dispersion equation. For this reason, what abnormal change would happen during the migration of Sr and U in nonhomogeneous media is the premise to provide the groundwater pollution forecasting methods and models. To this end, based on the investigation, we use the analysis methods to design model system for experimental study. Results show that the migration curves of nonhomogeneous test column and the homogeneous one are significantly different in the overall features. For the migration and environmental effects, the impact of the lenticular and blind-hole-type nonhomogeneous is a double-edged sword.The advantage is the reducing of pollution intensity, and the disadvantage is that the pollution action time is extended. Preliminary laboratory tests indicate that the pollution intensity may decreased by 10%-30%; however, the pollution action time is 3-5 times longer. In addition, we explain the migration curve mechanism of the so-called twin peaks and multi-peak, which are people concerned about.

Key words: nonhomogeneous, migration, experimental column, environmental effects

CLC Number: 

  • O 357.3
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