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Environmental Science and Pollution Research

, Volume 25, Issue 36, pp 36570–36580 | Cite as

Experimental study on the transport characteristics of buried pipeline leakage and the performance of groundwater remediation system

  • Wenming Jiang
  • Jie Yang
  • Jinhua Zhu
  • Yang Liu
  • Yimei Chen
  • Qiming Sun
  • Yingdong Wang
  • Haokun Zhang
Research Article
  • 32 Downloads

Abstract

Enhanced understanding of light non-aqueous phase liquid (LNAPL) infiltration into sandy porous medium is significant to the effective design of remediation strategies. A system for buried pipeline leakage in 2-D sandbox was conducted to investigate the migration of diesel through a sandy porous medium, and the system could also be conducted to investigate groundwater remediation. Two groups of experiments were carried out. The first experiment consisted of diesel infiltration into a fine sand matrix. We could notice that diesel spilled in dry sand layer at a constant speed and the diesel front kept longitudinal movement due to the gravity before it arrived at the edge of the capillary zone. The diesel front broadened as a whole because of the capillary force jacking after it reached the capillary zone. Finally, the bulk of the diesel was contained on top of the capillary zone. To protect groundwater, the second experiment consisted of remediating soils and groundwater. The results indicated that the voltage of electrocoagulation apparatus had a great influence on the treatment effect, and the removal rate of diesel was found to be more than 90% with a constant voltage of 20 V. The efficiency of groundwater remediation was influenced by the flow velocity, and it took 11 h when the flow velocity was 2.089 L/min. To summarize, the research was conducive to the study on diesel pollution control and pollution prediction.

Keywords

Buried pipeline leakage LNAPL infiltration Groundwater remediation Electrocoagulation apparatus 

Notes

Funding

This study was supported by the National Natural Science Foundation of China (Grant No. 51406240), the Natural Science Foundation of Shandong Province (Grant No. ZR2014EEQ003), the Qingdao Source Innovation Plan Application Basic Research Project (Grant No. 17-1-1-88-jch), and the Fundamental Research Funds for the Central Universities (Grant No. 18CX02082A, No. 12CX04070A, No.14CX02211A, and No.17CX02064).

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Wenming Jiang
    • 1
  • Jie Yang
    • 1
  • Jinhua Zhu
    • 2
  • Yang Liu
    • 1
  • Yimei Chen
    • 1
  • Qiming Sun
    • 1
  • Yingdong Wang
    • 1
  • Haokun Zhang
    • 1
  1. 1.College of Pipeline and Civil EngineeringChina University of PetroleumQingdaoChina
  2. 2.Shandong Product Quality Inspection Research InstituteJinanChina

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