• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of a novel redox sensor for sediment dynamics in coastal areas

Research Project

Project/Area Number 22K14330
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 22040:Hydroengineering-related
Research InstitutionHiroshima University

Principal Investigator

Kim Kyeongmin  広島大学, 先進理工系科学研究科(工), 特任助教 (40943650)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2022: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords水質計測センサー / 燃料電池型センサー / 水質予測システム / 水質計測 / 酸化還元反応 / 含水比計測 / 湿潤密度計測 / 溶存酸素計測 / 底泥 / 電位センサー / 浮泥
Outline of Research at the Start

航路の維持管理のため測量船による音波深浅測量 を実施している.しかし,音波測量法は堆積層と浮遊泥を 区別しにくく,堆積高さを過大評価してしまう点があるこ とから,航路の浚渫を計画的に行うことが困難である.
本研究は新たな手法として,電気的に底泥の堆積高さ・軟弱度を捉えるセンサーを開発し,航路埋没モニタリング に応用することを目標としている.これを達成するため,(1)長期的に測定可能な基準電極の開発,(2)底泥計測に適し た電極素材の開発,(3)電位を用いた堆積高さ・軟弱度評価 基準の確立を行う.以上により,安価で高精度の航路埋没 データを提供し,国内港湾の維持管理に貢献できるシステムを提案する.

Outline of Final Research Achievements

This study aims to develop a sensor that utilizes the electrochemical properties of seawater and sediments as a novel method to understand the dynamics of seafloor sediments. During the research period, the study was divided into several phases: basic research to elucidate the electrochemical properties of seawater and sediments, development of sensors targeting seawater (water quality), development of sensors targeting sediments, and development of technology to predict water quality and sediment dynamics using sensors with applied machine learning. By leveraging the characteristics of dissolved oxygen concentration detected by potential, we successfully demonstrated the continuous and long-term measurement of water quality in coastal areas where the annual water quality environment changes significantly. Based on the potential results measured continuously for about 8 months, we elucidated the mechanism of the occurrence and dissolution of hypoxic water masses in the bottom layer.

Academic Significance and Societal Importance of the Research Achievements

例えば港湾施設においては、本センサーの活用によりこれまで連続的な計測手法の不在でできなかった台風などのイベント現象発生直後の地形変化を素早く把握するのに活用できる。さらに、本センサーと機械学習を応用したシスの隙間から約一週間後の貧酸素水塊および巻き上げの発生を予測することが可能であり、漁業および養殖業の被害を最小化するのに活用可能である。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (8 results)

All 2024 2023 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (3 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Int'l Joint Research] Pukyong National Univeristy(韓国)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Machine learning-based prediction of seasonal hypoxia in eutrophic estuary using capacitive potentiometric sensor2024

    • Author(s)
      Park Seongsik、Kim Kyunghoi、Hibino Tadashi、Kim Kyeongmin
    • Journal Title

      Marine Environmental Research

      Volume: 196 Pages: 106445-106445

    • DOI

      10.1016/j.marenvres.2024.106445

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] WATER QUALITY MEASUREMENT USING ELECTRIC POTENTIAL OF BIOFILM IN TIDAL FLATS2023

    • Author(s)
      Sakai Yusuke、Furukawa Taito、Kim Kyeongmin、Hibino Tadashi
    • Journal Title

      Japanese Journal of JSCE

      Volume: 79 Issue: 18 Pages: n/a

    • DOI

      10.2208/jscejj.23-18016

    • ISSN
      2436-6021
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An Antifouling Redox Sensor with a Flexible Carbon Fiber Electrode for Machine Learning-Based Dissolved Oxygen Prediction in Severely Eutrophic Waters2023

    • Author(s)
      Park Seongsik、Kim Kyunghoi、Hibino Tadashi、Sakai Yusuke、Furukawa Taito、Kim Kyeongmin
    • Journal Title

      Water

      Volume: 15 Issue: 13 Pages: 2467-2467

    • DOI

      10.3390/w15132467

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] High-resolution monitoring of seasonal hypoxia dynamics using a capacitive potentiometric sensor: Capacitance amplifies redox potential2023

    • Author(s)
      Kim Kyeongmin、Nakagawa Yasuyuki、Takahashi Takumi、Yumioka Ryota、Hibino Tadashi
    • Journal Title

      Science of The Total Environment

      Volume: 836 Pages: 155435-155435

    • DOI

      10.1016/j.scitotenv.2022.155435

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Presentation] Development of batteryless sensor for coastal sedimentation2023

    • Author(s)
      K. Kim, Y. Nakagawa, T. Hibino
    • Organizer
      19th International Conference on Civil and Environmental Engineering
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 電気化学センサーを用いた海底堆積物の動態監視システムの開発と応用2023

    • Author(s)
      Kim Kyeongmin, 中川康之, 日比野忠史, 西本高志, 阿式邦弘
    • Organizer
      第70回海岸工学講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] A fuel cell type sensor for continuous monitoring of seabed deposition and erosion2023

    • Author(s)
      K. Kim, Y. Nakagawa, T. Hibino, T. Nishimoto, K. Ajiki
    • Organizer
      17th International Conference on Cohesive Sediment Transport Processes
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research

URL: 

Published: 2022-04-19   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi