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Development of Treatment System for Slightly Biodegrabable, Complex Wastewater by Hybrid Type, Electrolytic Method

Research Project

Project/Area Number 14550738
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 化学工学一般
Research InstitutionYamaguchi University

Principal Investigator

OSASA Kunihisa  Yamaguchi University, Faculty of Engineering, professor, 工学部, 教授 (30107726)

Co-Investigator(Kenkyū-buntansha) OTSUJI Yukie  Nihon Seikousho co. Ltd., Researcher, 機械製作所, 研究員
IWAI Shiho  Yamaguchi University, Faculty of Engineering, Research Assistant, 工学部, 教務員 (20335772)
NAKAKURA Hideo  Yamaguchi University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (10116733)
Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2003: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2002: ¥2,500,000 (Direct Cost: ¥2,500,000)
KeywordsHybrid Type, Electrolytic Method / Soluble Aluminum Electrodes / Insoluble Electrodes / Electroflotation / Electrolytic Dissolution / Cyano-complex / ハイブリッド型電解法 / 複極式電極 / 不溶性金属被膜電極 / 導電性ダイヤモンド電極 / ハイブリッド型電解プロセス / 難生分解性物質 / 電解質
Research Abstract

Hybrid Type, Electrolytic Method consists of the electroflotation using soluble aluminum electrodes and the electrolytic dissolution using insoluble electrodes. The purpose of this theme is to suggest the optimization of the design and the operating parameter using cyano-complex as a toxic substance
From the batch electroflotation experiment, the separation rate is a function of the electricity per unit volume of liquid and presented by the first order kinetics. The rate constant increases with the decrease of the current density and with the decrease of pH and reaches about pH8-9 at the final separation period. The effect of the structure of electrodes on the separation efficiency is examined by the continuous experiments. As the result, the separation efficiency is improved by using the bipolar electrode as compared with the monopolar one
The metal electrodes, IrO_2, Pt and PbO_2 as the coated material are used in the dissolution experiments. Cyano-complex is decomposed using NaCl as an electrolyte, It suggests that the decomposition is due to the chloride radical. The decomposition rate is a function of the electricity per unit volume of liquid. Ferricyanide changes to ferrocyanide by the electric oxidation. the ferrocyanide is decomposed rapidly by the chloride radical. In the latter process, iron ion formed by the oxidation is followed by the precipitate of ferric hydroxide. The decomposition rate is improved in the order of PbO_2, Pi and IrO_2
From hybrid type, electrolytic experiments, the separation efficiency was almost 100% using IrO_2 electrode which is higher durability and cheaper material than other metal electrodes

Report

(3 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • Research Products

    (15 results)

All Other

All Publications (15 results)

  • [Publications] 大佐々邦久, 近森善行, 岩井志帆, 坂田智美: "溶解性アルミニウム電極を用いた有機塩素化合物の電解浮上分離"化学工学論文集. 29. 764-768 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 大佐々邦久, 吉富 晋, 岩井志帆: "生体高分子を用いたアパタイト骨セメントの調製とその圧縮性および薬物徐放特性"粉体工学誌. 39. 685-691 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 中倉英雄, 中武隆士, 三分一政男, 大佐々邦久: "ショ糖を含む寒天ゲルの定圧圧搾"日本食品科学工学会誌. 49. 12-18 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 大佐々邦久(分担執筆): "ナノ微粒子の調製および分散・凝集コントロールとその評価 分担部分:第4節(3)沈降特性の測定と凝集度合いの評価"技術情報協会. 329(298-308) (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Osasa K, Y.Chikamori, S.Iwai, T.Tomomi: "Electroflotation of Chlorinated Organic Compounds Using a Soluble Aluminum Electrode"Kagaku Kogaku Ronbunshu. 29. 764-768 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Osasa, K., M.Yoshitomi, S.Iwai: "Mechanical Strength and Drug Release Characteristics of Bioactive $one Cement Using α-Tricalcium Phosphate and Biopolymer"J.of the Soc.of Powder Tech.Japan. 39. 685-691 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Nakakura, H., T.Nakatake, M.Sambuichi, K.Osasa: "Dewatering of Agar-agar Gels Containing Sucrose by Mechanical Compression"Nippon Shokuhin Kagaku Kogaku Kaishi. 49. 12-18 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Osasa, K.: "Nano Biryushi no Chousei oyobi Bunsan-Gyoushu kontororu to Sono Hyouka"Gijutu Joho Kyoukai (Tokya, Japan). 298-308 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 大佐々邦久, 近森善行, 岩井志帆, 坂田智美: "溶解性アルミニウム電極を用いた有機塩素化合物の電界浮上分離"化学工学論文集. 29. 764-768 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 大佐々邦久, 吉富 晋, 岩井志帆: "生体高分子を用いたアパタイト骨セメントの調製とその圧縮強度および薬物溶出特性"粉体工学会誌. 39. 685-691 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] 中倉英雄, 中武隆士, 三分一政男, 大佐々邦久: "ショ糖を含む寒天ゲルの定圧圧搾"日本食品科学工学会誌. 49. 12-18 (2002)

    • Related Report
      2003 Annual Research Report
  • [Publications] 大佐々邦久(分担執筆): "ナノ微粒子の調製および分散・凝集コントロールとその評価(分担部分:第4節(3)沈降特性の測定と凝集度合いの評価)"技術情報協会. 329(298-308) (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 大佐々邦久: "多層円錐板を備えた油木分離器のモデル化"化学工学論文集. 第28巻5号. 631-635 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 大佐々邦久: "生体高分子を用いたアパタイト骨セメントの調製とその圧縮強度および薬剤特性"粉体工学会誌. 第39巻9号. 685-691 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 中倉英雄: "ショ糖を含む寒天ゲルの定圧圧搾"日本食品科学工学会誌. 第49巻1号. 12-18 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2016-04-21  

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