Geomechanics and Engineering

  • 제33권3호
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  • Pages.291-299
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  • 2023
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  • 2005-307X(pISSN)
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  • 2092-6219(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Application of optimized time domain reflectometry probe for estimating contaminants in saline soil

  • Dongsoo Lee (School of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Jong-Sub Lee (School of Civil, Environmental and Architectural Engineering, Korea University) ;
  • Yong-Hoon Byun (School of Agricultural Civil & Bio-Industrial Engineering, Kyungpook National University) ;
  • Sang Yeob Kim (Department of Fire and Disaster Prevention, Konkuk University)
  • 투고 : 2023.02.01
  • 심사 : 2023.03.08
  • 발행 : 2023.05.10
⟨ 이전 논문 다음 논문 ⟩

초록

Monitoring contaminants in waste landfills on a seabed is important because the leachate affects the marine ecosystem and facility stability. The objective of this study is to optimize a time-domain reflectometry (TDR) probe using different coating materials and several electrodes to estimate contaminants in saline soil. Copper concentrations ranging from 0 mg/L to 10 mg/L were mixed in 3% salinity water to simulate contaminants in the ocean environment. Epoxy, top-coat, and varnish were used as coating materials, and two to seven electrodes were prepared to vary the number and arrangement of the electrodes. Test results showed that the varnish stably captured the increase in copper concentration, while the other coating materials became insensitive or caused leakage current. In addition, a TDR probe with more electrodes exhibited stable and distinct electromagnetic signals. Thus, the TDR probe with seven electrodes coated with varnish was effectively used to estimate contaminants in saline soil.

키워드

과제정보

This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. NRF-2021R1A5A1032433; NRF2021R1C1C2008932).

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