• Applicability of TDR Sensor for Monitoring Moisture Content of Landfill - Focusing on the 2nd Landfill of SUDOKWON Landfill Site -

  • Won-Young Choi1, Young-Kyu Kim1, Chul Hee Lee2, Yong Jae Lee2, Seung-Kyu Chun*

  • 1Department of Energy and Chemical Engineering, Graduate School of Convergence Sciences,
    Seoul National University of Science & Technology, Seoul 01811, Korea 2Asia Geo, Gyeonggi-Do 17006, Korea
    *Department of Chemical and Biomolecularl Engineering, Seoul National University of Science & Technology, Seoul 01811, Korea

  • 매립지 함수율 모니터링을 위한 TDR 센서의 적용성 검토 - 수도권매립지 제2매립장을 중심으로 -

  • 최원영1·김영규1·이철희2·이용재2·천승규*

  • 1서울과학기술대학교 융합과학대학원 에너지화학공학과, 2(주)아시아지오,
    *서울과학기술대학교 화공생명공학과

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study evaluated a method for prompt and periodic monitoring of moisture content in the waste layer of a landfill using a Time Domain Reflectometry (TDR) sensor, aimed at ensuring the stable operation of the bioreactor facility at the 2nd landfill of the SUDOKWON Landfill Site. It was found that the TDR sensor is sensitive to variables such as temperature changes and ion content in both the waste layer and leachate, indicating that a correction equation is necessary. A correction equation derived through regression analysis demonstrated a high correlation (correlation coefficient = 0.9647), and field verification experiments confirmed its reliability with an average deviation of only 1.5%. This verifies that the TDR sensor is effective for measuring and monitoring moisture content in landfills. It is also anticipated to be useful for various applications, including monitoring leachate levels, detecting leachate leakage, and assessing rainwater infiltration.


Keywords: Bioreactor landfill, TDR sensors, Leachate recirculation, Waste sampling

This Article

  • 2024; 29(4): 1-11

    Published on Aug 30, 2024

  • 10.7857/JSGE.2024.29.4.001
  • Received on Jul 15, 2024
  • Revised on Aug 1, 2024
  • Accepted on Aug 14, 2024

Correspondence to

  • Seung-Kyu Chun

  • Department of Chemical and Biomolecularl Engineering, Seoul National University of Science & Technology, Seoul 01811, Korea

  • E-mail: skchun@seoultech.ac.kr