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Study on Detoxification of Hexavalent Chromium and Strength Enhancement in Cementitious Soil Using Waste Syrup

Research Project

Project/Area Number 20K04684
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 22030:Geotechnical engineering-related
Research InstitutionKagawa University

Principal Investigator

YOSHIDA HIDENORI  香川大学, 創造工学部, 教授 (80265470)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords廃シロップ / 六価クロム / 無害化 / セメント系改良土 / 強度増加 / 廃棄物の減容 / 地盤改良 / セメント系改良材 / 還元糖
Outline of Research at the Start

地盤改良では,セメント系材料が多用されるが,その製造過程において六価クロムを含むため,地盤に投入されてから固結するまでの間に六価クロムが溶出し,地盤や地下水を汚染する可能性がある.近年,自然災害等が増加し,地盤改良のニーズが増えていることに加え,国の六価クロム化合物に係る水質基準が厳しくなる予定であることから,六価クロムの廉価な無害化と改良土の強度確保と言う要請を満たす必要が有る.本研究では,糖類には還元能力があること,さらに賞味期限が切れた廃シロップは大量にあることに着眼し,廃シロップをセメント系材料に混合することで,低コストで六価クロムを無害化し,かつ,改良土の要求強度の確保を目的とする.

Outline of Final Research Achievements

In this study, uniaxial compression tests and hexavalent chromium elution tests were conducted to clarify the mechanism by which the addition of waste syrup improves the strength of cement-improved soil.
First, the effects of viscosity and the prevention of sugar crystallization of waste syrup on the properties of the improved soil were examined. The results indicated that viscosity was not involved in improving the strength of the improved soil, and that the anti-crystallization effect of the waste syrup was involved in improving the strength of the improved soil.
Next, to understand the hexavalent chromium leaching characteristics of the improved soil, a hexavalent chromium leaching test was conducted. It was found that the waste syrup contained several sugars, which may be responsible for its high reducing ability.

Academic Significance and Societal Importance of the Research Achievements

六価クロムの規制が強まることを受け,今後,六価クロムの無害化は喫緊の課題となる.そうした中で,六価クロムの無害化について,低コストと強度の両者を満たすことが望まれていることから,本研究の成果は,廃シロップという低コストな廃棄物で六価クロムを無害化できるという点で,単に,有害物質を無害化するだけでなく,食品関連廃棄物の減容化にもつながり,持続可能な社会の開発(SDGs)に大いに貢献するものと考える.
また,本研究では,廃シロップを添加したセメント系改良土の強度が増加すること,ならびにその増加メカニズムを明らかにした.こうした検討ならびにその成果は,学術的にも大いに注目されるところである.

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (24 results)

All 2023 2022 2021 2020

All Journal Article (10 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 9 results,  Open Access: 5 results) Presentation (13 results) (of which Int'l Joint Research: 5 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] PHYSICAL PROPERTY AND HEAVY METAL LEACHING BEHAVIOR OF CONCRETE MIXED WITH WOODY ASH2023

    • Author(s)
      Takuto Ueno, Ayane Yanaka, Shinichiro Okazaki, Naomichi Matsumoto and Hidenori Yoshida
    • Journal Title

      International Journal of GEOMATE

      Volume: 24 Issue: 102 Pages: 77-84

    • DOI

      10.21660/2023.102.s8530

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] RECYCLING OF FISHERY WASTE AS PLANTING BASE POROUS CONCRETE AIMED AT ACHIEVING CARBON NEUTRALITY2023

    • Author(s)
      Ayane Yanaka, Hidenori Yoshida, Shinichiro Okazaki, Yui Oyake and Yoshihiro Suenaga
    • Journal Title

      International Journal of GEOMATE

      Volume: 24 Issue: 104 Pages: 85-92

    • DOI

      10.21660/2023.104.s8549

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] STUDY ON PROPERTIES OF CONCRETE MIXED WITH RICE HUSK ASH ADSORBING HEAVY METALS2022

    • Author(s)
      Ayane Yanaka,Takuto Ueno, Shinichiro Okazaki, Naomochi Matsumoto and Hidenori Yoshida
    • Journal Title

      International Journal of GEOMATE

      Volume: 22 Issue: 92 Pages: 77-82

    • DOI

      10.21660/2022.92.7638

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 希少糖の工業利用とコンクリート分野への活用の可能性2022

    • Author(s)
      岡﨑慎一郎,吉田秀典
    • Journal Title

      セメント・コンクリート

      Volume: 903 Pages: 6-9

    • Related Report
      2022 Annual Research Report
  • [Journal Article] STUDY ON PHYSICAL PROPERTIES AND GRASS GROWTH CAPACITY OF POROUS CONCRETE2022

    • Author(s)
      Yamaya, K , Oyake, Y , Suenaga, Y , Yoshida, H
    • Journal Title

      International Journal of GEOMATE

      Volume: 22 Issue: 91 Pages: 8-13

    • DOI

      10.21660/2022.91.7553

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] ADSORPTION PROPERTIES OF MATERIALS ADSORBING SELECTIVELY ARSENIC FROM AQUEOUS SOLUTIONS CONTAINING MULTIPLE CHEMICAL SPECIES2022

    • Author(s)
      Yanaka, A, Takeshita, Y, Shibata, K, Suenaga, Y, Yoshida, H
    • Journal Title

      International Journal of GEOMATE

      Volume: 22 Issue: 90 Pages: 79-84

    • DOI

      10.21660/2022.90.gxi383

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] STUDY ON REMOVAL OF CESIUM FROM CONTAMINATED SOIL BY ELECTROPHORESIS USING POTASSIUM ACETATE AS ELECTROLYTE2021

    • Author(s)
      Yanaka, A, Shibata, K, Naomich, M, Yoshida, H
    • Journal Title

      International Journal of GEOMATE

      Volume: 20 Issue: 81 Pages: 16-21

    • DOI

      10.21660/2021.81.6222

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Study on reduction of hexavalent chromium elution from cement-improved soil2020

    • Author(s)
      Shibata Keiichiro、Yamaya Kensuke、Yoshida Hidenori、Suenaga Yoshihiro、Okazaki Shinichiro、Matsumoto Naomichi
    • Journal Title

      Japanese Geotechnical Society Special Publication

      Volume: 8 Issue: 4 Pages: 130-135

    • DOI

      10.3208/jgssp.v08.j42

    • NAID

      130007809088

    • ISSN
      2188-8027
    • Year and Date
      2020-03-14
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 廃シロップ添加によるセメント改良土の強度向上に関する研究2020

    • Author(s)
      山谷健介,柴田慶一郎,松本直通,岡崎慎一郎,吉田秀典
    • Journal Title

      第12回地盤改良シンポジウム論文集

      Volume: 12 Pages: 239-244

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] STUDY ON ELUTION REDUCTION OF HEXAVALENT CHROMIUM FROM RECYCLED BASE COURSE MATERIAL USING WASTE SYRUP2020

    • Author(s)
      Keiichiro Shibata, Kensuke Yamaya, Hidenori Yoshida, Yoshihiro Suenaga, Shinichiro Okazaki, Naomichi Matsumoto
    • Journal Title

      International Journal of GEOMATE

      Volume: 18 Issue: 70 Pages: 149-154

    • DOI

      10.21660/2020.70.5597

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 木質灰を混和したコンクリートの性状に関する研究2022

    • Author(s)
      上野沢斗,吉田秀典,岡崎慎一郎,谷中彩寧
    • Organizer
      令和4年度四国支部技術研究発表会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 木質灰混和コンクリートの物性ならびに重金属溶出挙動に関する研究2022

    • Author(s)
      上野沢斗,谷中彩寧,吉田秀典,岡崎慎一郎,藤田一平
    • Organizer
      令和4年度土木学会全国大会第77回年次学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Physical Property and Heavy Metal Leaching Behavior of Concrete Mixed with Woody Ash2022

    • Author(s)
      akuto Ueno, Ayane Yanaka, Shinichiro Okazaki, Naomichi Matsumoto and Hidenori Yoshida
    • Organizer
      The 8th International Conference - SEE 2022 Structure, Engineering & Environment
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recycling of Fishery Waste as Planting Base Porous Concrete Aimed at Achieving Carbon Neutrality2022

    • Author(s)
      Ayane Yanaka, Hidenori Yoshida, Shinichiro Okazaki, Yui Oyake and Yoshihiro Suenaga,
    • Organizer
      The 8th International Conference - SEE 2022 Structure, Engineering & Environment
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 重金属吸着籾殻の再資源化に関する研究2021

    • Author(s)
      谷中彩寧,上野沢斗,松本直通,吉田秀典
    • Organizer
      令和3年度土木学会全国大会第76回年次学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] ポーラスコンクリートの物性ならびに植物生育能力に関する研究2021

    • Author(s)
      山谷健介,吉田秀典,松本直通,末永慶寛,小宅由似,久保祐輔
    • Organizer
      令和3年度土木学会全国大会第76回年次学術講演会
    • Related Report
      2021 Research-status Report
  • [Presentation] 複数の化学種を混入した溶液からのヒ素の選択的吸着特性に関する研究2021

    • Author(s)
      谷中彩寧,吉田秀典,末永慶寛
    • Organizer
      第56回地盤工学研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] 木質バイオマス燃焼灰に含まれる六価クロム無害化に関する研究2021

    • Author(s)
      山谷健介、吉田秀典、松本直通、岡崎慎一郎
    • Organizer
      令和3年度土木学会四国支部第27回技術研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] 重金属吸着籾殻灰を混合したコンクリートの性状ならびに重金属溶出特性に関する研究2021

    • Author(s)
      上野沢斗,谷中彩寧,岡崎慎一郎,吉田秀典
    • Organizer
      令和3年度土木学会四国支部第27回技術研究発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] Adsorption Properties of Materials Adsorbing Selectively Arsenic from Aqueous Solutions Containing Multiple Chemical Species2021

    • Author(s)
      Ayane Yanaka, Yuri Takeshita, Keiichiro Shibata, Yoshihiro Suenaga and Hidenori Yoshida
    • Organizer
      11th International Conference - GEOMATE 2021 Geotechnique, Construction Materials and Environment
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Study on Properties of Concrete Mixed with Rice Husk Ash Adsorbing Heavy Metals2021

    • Author(s)
      Ayane Yanaka, Takuto Ueno, Shinichiro Okazaki, Naomichi Matsumoto, Hidenori Yoshida
    • Organizer
      7th International Conference - SEE 2021 (Structure, Engineering & Environment)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] udy on Physical Properties and Grass Growth Capacity of Porous Concrete2021

    • Author(s)
      Kensuke Yamaya, Yui Oyake, Yoshihiro Suenaga, and Hidenori Yoshida
    • Organizer
      7th International Conference - SEE 2021 (Structure, Engineering & Environment)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] セメント改良土からの六価クロム溶出低減に関する研究2020

    • Author(s)
      山谷健介,吉田秀典,松本直通,末永慶寛,柴田慶一郎
    • Organizer
      令和2年度土木学会四国支部技術研究発表会
    • Related Report
      2020 Research-status Report
  • [Patent(Industrial Property Rights)] 六価クロム無害化剤,及び六価クロムを含有する被処理物質の無害化処理方法2021

    • Inventor(s)
      吉田秀典,何森健,岡崎慎一郎
    • Industrial Property Rights Holder
      吉田秀典,何森健,岡崎慎一郎
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-060526
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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