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1997 Fiscal Year Final Research Report Summary

The Developement of Advanced Oxidation Processes for Direct Degradation of Slowly Biodegradable Organic Matters

Research Project

Project/Area Number 08455240
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Civil and environmental engineering
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

SOMIYA Isao  Kyoto University, Graduate School of Engineering, Professor, 工学研究科, 教授 (60025947)

Co-Investigator(Kenkyū-buntansha) KISHIMOTO Naoyuki  Kyoto University, Graduate School of Engineering, Instructor, 工学研究科, 助手 (00293895)
MIYATA Jun  Kyoto University, Graduate School of Engineering, Instructor, 工学研究科, 助手 (80273481)
Project Period (FY) 1996 – 1997
KeywordsAdvanced Oxidation Process / slowly biodegradable organic matter / ozone / organochlorine compound
Research Abstract

In this study, treatment characteristics and reaction mechanisms of advanced oxidation processes for the direct degradation of humic acid, trichloroethylene (TCE), and 1,1,1-trichloroethane (1,1,1-TCE) were examined.
Decoloration process of humic acid by ozonation was described by Michaelis-Menten's formula, whose rate constant of reaction and Michaelis constant were proportional to the rate of ozonation and the initial concentration of humic acid respectively. Ozonation for 30 minutes degraded 91.7% of the initial TCE and none of 1,1,1-TCE.But the ozone-hydrogen peroxide process for 30 minutes could degrade 22.2% of 1,1,1-TCE and the rate constant of reaction of TCE was 1.5 times larger than that with the ozonation process. Ozone-UV process could decolor humic acid solution, furthermore it could decompose 95% of the initial total organic carbon (TOC) with UV intensity not less than 4.7 W.The ratio of decomposed TOC to the initial TOC reached two times larger than that with the ozonation process. This was thought to be caused by oxidative decomposition of organic acids, which was inferred by the transition of pH.The ozone-UV process for 30 minutes could degrade 97.8% of the initial TCE,and 53.2% of the initial 1,1,1-TCE.As a result, it was clarified that the advanced oxidation processes, especially ozone-UV process, were effective to the degradation of slowly biodegradable organic matters.

  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] I.Somiya: "Advanced Oxidation of Humic Acid By Using Ozone-UV Process" Proceedings of the 6th KU-KAIST-NTU Tri-Lateral Seminar/Workshop on Civil Engineering. 285-289 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宗宮 功: "オゾン-紫外線併用によるフミン酸の効率的処理に関する基礎的研究" 第33回下水道研究発表会講演集. 714-716 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 宗宮 功: "オゾン-紫外線併用法によるフミン酸分解の反応モデル化に関する研究" 第6回日本オゾン協会年次研究講演会講演集. 131-134 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I.Somiya: "Direct Degradation of Humic Acid by UV-Ozonation" Proceedings of 13th OZONE WORLD CONGRESS,Oral Presentations. Vol.1. 493-498 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] I.Somiya: "Decompositon of Volatile Organochlorine Compounds with Advanced Oxidation Process" Proceedings of 13th OZONE WORLD CONGRESS,Poster Presentations. 71-74 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Isao Somiya: "Advanced Oxidation of Humic Acid By Using Ozone-UV Process" Proceedings of the 6th KU-KAIST-NTU Tri-Lateral Seminar/Workshop on Civil Engineering. 285-289 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Isao Somiya: "Fundamental Study on the Effective Treatment of Humic Acid using ozone-UV Process" Proceedings of 33th. Sewage meeting for reading research papers. 714-716 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Isao Somiya: "Modeling for the Degradation Process of Humic Acid by UV-Ozonation" Proceedings of 6th. Japan Ozone Association meeting for reading research papers. 131-134 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Isao Somiya: "Direct Degradation of Humic Acid by UV-Ozonation" Proceedings of 13th. OZONE WORLD CONGRESS,Oral Presentations.Vol.1. 493-498 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Isao Somiya: "Decomposition of Volatile Organochlorine Coumpounds with Advanced Oxidation Process" Proceedings of 13th. OZONE WORLD CONGRESS,Poster Presentations.71-74 (1997)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-16  

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