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Electrical resistivity tomography and numerical simulation of DNAPL infiltration process in three-dimensional sand box
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Jun-jie JIANG, Wen-han CAO, Han-le LIU*
China Environmental Science | 2025, 45(5) : 2513 - 2519
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China Environmental Science | 2025, 45(5): 2513-2519
• Water Pollution Control •
Electrical resistivity tomography and numerical simulation of DNAPL infiltration process in three-dimensional sand box
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Jun-jie JIANG, Wen-han CAO, Han-le LIU*
Affiliations
  • Engineering Research Center of Watershed Protection and Green Development, Guangxi Key Laboratory of Environmental Contaminant Control Theory and Technology, Guilin University of Technology, Guilin 541006, China
Published: 2025-05-20
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This research conducted an experiment on DNAPL contamination in a saturated porous medium within a three-dimensional sandbox and performed synchronized dynamic monitoring using electrical resistivity tomography（ERT）. The resistivity images obtained from ERT were used to determine the spatial distribution of DNAPL contaminants, which were then compared with the numerical simulation model established in the sandbox experiment. The absolute value of the relative error in the diameter of the DNAPL distribution area obtained from the numerical simulation and the DNAPL distribution area determined by the ERT monitoring ranged from 2.00% to 27.50% across different spatial locations. The absolute value of the relative error in the diameter of the DNAPL distribution area obtained from the numerical simulation and the DNAPL distribution area determined by the ERT monitoring ranged from 2.7% to 40.58% at different time points. The results demonstrate the feasibility of using the numerical simulation software Petrasim to predict the distribution range of DNAPL contamination in saturated sandy soil.

DNAPL  /  electrical resistivity tomography  /  saturated sand  /  numerical simulation
Jun-jie JIANG, Wen-han CAO, Han-le LIU. Electrical resistivity tomography and numerical simulation of DNAPL infiltration process in three-dimensional sand box[J]. China Environmental Science, 2025 , 45 (5) : 2513 -2519 .
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Year 2025 volume 45 Issue 5
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Article Info
  • Receive Date：2024-11-20
  • Online Date：2026-03-18
  • Published：2025-05-20
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  • Received：2024-11-20
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Affiliations
    Engineering Research Center of Watershed Protection and Green Development, Guangxi Key Laboratory of Environmental Contaminant Control Theory and Technology, Guilin University of Technology, Guilin 541006, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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