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Generation of radicals using discharge inside bubbles and its applications for water treatment

Research Project

Project/Area Number 12305018
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 電力工学・電気機器工学
Research InstitutionSaga University

Principal Investigator

YAMABE Chobei  Saga University, Department of Electrical and Electronic Eng., Professor, 理工学部, 教授 (30093082)

Co-Investigator(Kenkyū-buntansha) HAYASHI Nobuya  Saga University, Department of Electrical and Electronic Eng., Research Associate, 理工学部, 助手 (40295019)
IHARA Satoshi  Saga University, Department of Electrical and Electronic Eng., Assistant Professor, 理工学部, 講師 (90260728)
SATOH Saburoh  Saga University, Joint Research and Development Center, Associate Professor, 科学技術共同開発センター, 助教授 (80264141)
FURUBE Toshiya  Iwao Jiki Kogyo Co. Ltd., R&D division, Researcher, 企画開発室, 研究員
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥18,730,000 (Direct Cost: ¥16,300,000、Indirect Cost: ¥2,430,000)
Fiscal Year 2002: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2001: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2000: ¥8,200,000 (Direct Cost: ¥8,200,000)
Keywordsdischarge in bubbled water / ozone / water treatment / OH radical / ozonizer / pulsed power / hydroperoxide / radical / 活性種 / 水質改善 / 脱色 / 泡放電 / 溶存オゾン / H_2O_2
Research Abstract

(1) Generation of radicals in the foaming system using two ceramic diffusers and its applications to water treatment have been done. The measurements of light emissions from OH radicals in the range of 300.335 nm have been done is the oxygen, Ar and air. The light intensity emitted from OH radicals is proportional to the applied voltage. The maximum concentration of hydroperoxide (H_2O_2) obtained is 40mg/l in oxygen and 35 mg/l in air. The dissolved ozone concentration is about 0.13 mg/l.
(2)The generated ozone using discharges inside bubbles in water has been measured. The maximum concentration of exhausted ozone from water surface in oxygen is about 6.4 g/Nm3 and dissolved ozone in water is about 0.3 mg/l. The intensity of light emission from OH radicals has been measured and it increases with the applied voltage. The removal of blue color in water has been confirmed.
(3) Although the water including acetic acid has been tried to decompose it by the generated radicals produced by discharges is water, the effect has not been confirmed clearly Another new method which has discharge along the water surface generated by pressured fed gas in water. It has been confirmed that this method is possible to decompose the acetic acid in water.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (28 results)

All Other

All Publications (28 results)

  • [Publications] T.Miichi, N.Hayashi, S.Ihara, S.Satoh, C.Yamabe: "Generation of Radicals using Discharge inside Bubbles in Water"Ozone Science & Engineering. 24. 471-477 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Miichi, N.Hayashi, S.Ihara, S.Satoh, C.Yamabe: "Generation of Radicals Using Discharge inside Bubbles in Water (II)"2002 Joint Conference of AECD&K-J Symposium on ED and HVE. 292-295 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 見市知昭, 林信哉, 猪原哲, 佐藤三郎, 山部長兵衛: "水中気泡内放電によるオゾン生成"電気学会論文誌. A121. 448-452 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Joanna Pawlat, Chobei Yamabe, et al.: "Studies in Electrical Discharge Effects in a Foaming Environment"Japanese J.Appl.Phys.(Part 1). 40. 7061-7066 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Chobei Yamabe, Tomoaki Miichi, et al.: "Generation of Radicals by Discharges inside Bubble in Water"Proc.of XIII International Conference on Gas Discharges and their Applications. 684-687 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomoaki Miichi, Chobei Yamabe, et al.: "Spectroscopic measurements of discharges inside bubbles in water"Vacuum. 59. 236-243 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomoaki Miichi, Nobuya Hayashi, Satoshi Ihara, Saburoh Satoh, Chobei Yamabe: "Generation of Radicals using Discharge inside Bubbles in Water"Ozone Science & Engineering. Vol.24, No. 6. 471-474 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomoaki Miichi, Nobuya Hayashi, Satoshi Ihara, Saburoh Satoh, Chobei Yamabe: "Generation of Radicals using Discharge inside Bubbles in Water (II)"2002 Joint Conference of AECD & K-J Symposium on ED and HVE. 292-295 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomoaki Miichi, Nobuya Hayashi, Satoshi Ihara, Saburoh Satoh, Chobei Yamabe: "Ozone generation by discharge inside Bubbles in water (in Japanese)"T. IEE Japan. Vol.121-A, No.5. 448-452 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Joanna Pawlat, Nobuya Hayashi, Chobei Yamabe: "Studies on Electrical Discharge Effects in a Foaming Environment"Jpn. J. Appl. Phys.. Vol.40, No.12. 7061-7066 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Chobei Yamabe, Tomoaki Miichi, Satoshi Ihara, Nobuya Hayashi, Saburoh Satoh: "Generation of Radicals by Discharges Inside Bubbles in water"Pros. of XIII International Conf. On Gas Discharges and their Applications. 684-687 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Tomoaki Miichi, Satoshi Ihara, Saburoh Satoh, Chobei Yamabe: Vacuum. Vol.59, No.1. 236-243 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Joanna Pawlat, Chobei Yamabe, Nobuya Hayashi, Saburoh Satoh, Iwo Pollo: "Generation of radicals by electric discharge in gaseous and foaming conditions"Proc. Of International Symposium on High Pressure Low Temperature Plasma. 355-359 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] T.Miichi, N.Hayashi, S.Ihara, S.Satoh, C.Yamabe: "Generation of Radicals using Discharge inside Bubbles in Water"Ozone Science and Engineering. 24・6. 471-477 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Miichi, N.Hayashi, S.Ihara, S.Satoh, C.Yamabe: "Generation of Radicals using Discharge inside Bubbles in Water(II)"2002 Joint Conference of AECD & K-J Symposium on ED and HVE. 292-295 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 鴻海, 見市, 林, 猪原, 佐藤, 山部: "気層-液層界面における放電を用いた酢酸処理"電気学会放電研究会. ED-02-128. 1-4 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 見市知昭, 林信哉, 猪原哲, 佐藤三郎, 山部長兵衛: "水中気泡内放電によるオゾン生成"電気学会 論文誌. A121・5. 448-452 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] N.Hayashi, C.Yamabe et al.: "Treatment of Volatile Organic Compound by Positive Streamer Corona Using a Series Gap"Jpn.J.Appl.Phys. (part1). 40・10. 6104-6108 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Joanna Pawlat, Chobei Yamabe et al.: "Studies on Electrical Discharge Effects in a Foaming Environment"Jpn.J.Appl.Phys. (part1). 40・12. 7061-7066 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Hee-sung AHN, Chobei YAMABE, et al.: "Fundamental Investigation on Ozone Generation Characteristics Using Superimposed Discharge"プラズマ応用科学. 9. 120-127 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Seiji Baba, Chobei Yamabe, et al.: "Method of Ozonation Scheme"The 15th Ozone World Congress. I. 77-81 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Tomoaki Miichi, Chobei Yamabe et al.: "Generation of radicals using discharge inside bubbles in water for water treatment"The 15th Ozone World Congress. III. 148-155 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Chobei Yamabe et al.: "Generation of Radicals by Discharges inside Bubbles in Water"Proc, of XIII Int, Conf, on Gas Discharges and their Applications. 684-687 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Joanna Pawlat et al.: "Generation of radicals by electric discharge in gaseous and foaming conditions"Proc, of Int, Symp.on High Pressure Low Temperature Plasma Chemistry. 355-359 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Tomoaki Miichi et al.: "Spectroscopic measurements of discharges inside bubbles in water"Vacuum. 59・1. 236-243 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Joanna Pawlat et al.: "The Foaming System's Features"Proc, of 2000 Korea-Japan Joint S'y-mp.on Electrical Discharge and High Voltage Engineering. (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Joanna Pawlat et al.: "Oxidant's Production and Electrical Discharge in Foam"Proc, of 10th Asian Conf.on Electrical Discharge. 251-254 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 見市知昭 他: "水中気泡内放電によるオゾン生成"電気学会 論文誌A. 121・5(印刷中). (2001)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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