EFFECT OF WATER-TABLE FLUCTUATION ON PETROLEUM POLLUTANT MIGRATION AND LENS POSITION

XU Rui-yang; HONG Mei

doi:10.13205/j.hjgc.202012028

Volume 38 Issue 12

Apr. 2021

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(12): 168-172

XU Rui-yang, HONG Mei. EFFECT OF WATER-TABLE FLUCTUATION ON PETROLEUM POLLUTANT MIGRATION AND LENS POSITION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(12): 168-172. doi: 10.13205/j.hjgc.202012028

Citation:

XU Rui-yang, HONG Mei. EFFECT OF WATER-TABLE FLUCTUATION ON PETROLEUM POLLUTANT MIGRATION AND LENS POSITION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(12): 168-172. doi: 10.13205/j.hjgc.202012028

XU Rui-yang, HONG Mei. EFFECT OF WATER-TABLE FLUCTUATION ON PETROLEUM POLLUTANT MIGRATION AND LENS POSITION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(12): 168-172. doi: 10.13205/j.hjgc.202012028

Citation:

XU Rui-yang, HONG Mei. EFFECT OF WATER-TABLE FLUCTUATION ON PETROLEUM POLLUTANT MIGRATION AND LENS POSITION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(12): 168-172. doi: 10.13205/j.hjgc.202012028

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EFFECT OF WATER-TABLE FLUCTUATION ON PETROLEUM POLLUTANT MIGRATION AND LENS POSITION

doi: 10.13205/j.hjgc.202012028

XU Rui-yang^1,2,
HONG Mei^{1,2
,
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1. School of New Energy and Environment, Jilin University, Changchun 130000, China;
2. National Local Joint Engineering Laboratory of Petrochemical Pollution Site Control and Remediation Technology, Jilin University, Changchun 130000, China

Received Date: 2019-11-26
Available Online: 2021-04-23

Abstract

Abstract

In the past few years, the pollution of soil and groundwater by petroleum pollutants became increasingly serious.The fluctuation of groundwater level caused by natural and man-made factors will cause the secondary migration of pollutants and expand the pollution scale.Therefore,the remediation of petroleum pollutants in water-table fluctuation zone have to be settled urgently. In this study, picking diesel as a representative of petroleum pollutants, the migration and transformation of diesel in water-table zone was simulated in a two-dimension sand box. The main purpose of this study were to research the change of diesel lens position, diesel-water-gas saturation in a two-dimension sand box in difference water level variation mode, and to analyze the effect of water-table fluctuation on the transport behavior of petroleum pollutants in unsaturated zone of groundwater. The results showed that when the water level fluctuated downward, the oil phase could drive the water to migrate downward, and the lens position moved downward. During the migration process, part of the oil phase was adsorbed by the medium to form a residual phase, resulting in an increase in the pollution range of the residual phase diesel; when the water level fluctuated upward, the water could drive the oil phase to move upward, and the lens body position moved upward. During the migration, part of the oil phase dissolves, which led to an increase in the pollution range of the dissolved phase diesel.This research could provide theoretical support for the remediation of actual contaminated sites.
- petroleum pollutants,
- water-table fluctuation,
- lens,
- unsaturated zone,
- transport behavior

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References

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