Enhancement of selective hydrophilization of PVC surface and its application for plastic recycle

• Project/Area Number: 19686054
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Recycling engineering
• Research Institution: Hiroshima University
• Principal Investigator: OKUDA Tetsuji Hiroshima University, 環境安全センター, 助教 (60343290)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥14,560,000 (Direct Cost: ¥11,200,000、Indirect Cost: ¥3,360,000); Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2008: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2007: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
• Keywords: 塩化ビニル / 塩化ビニリデン / 混合プラスチック / 分別 / 浮遊選別 / オゾン / 表面 / リサイクル

Research Abstract

The separation of PVC and other chlorinated plastics from mixture of waste plastics was investigated and separation technology was developed. The mechanisms of hydrophilization of PVC surface was found and enhancement of hydrophilization of PVC surface was achieved at higher ozone concentration and ozonation time. Optimization of the condition of froth flotation was optimized and these technologies were applied to the improvement of wet density separation of PVC.

Research Products

• [Journal Article] Feasibility study of the separation of chlorinated films from plastic packaging wastes (2010)
  • Author(s): Mallampati Srinivasa REDDY, Takefumi Yamaguchi, Tetsuji OKUDA, Tsung-Yueh TSAI, Satoshi NAKAI, Wataru NISHIJIMA, Mitsumasa OKADA
  • Journal Title: Waste Management 30 Pages: 597-601
  • Peer Reviewed
• [Journal Article] Feasibility study of the separation of chlorinated films from plastic packaging wastes (2010)
  • Author(s): Mallampati Srinivasa REDDY, Takefiumi Yamaguchi, Tetsuji OKUDA, Tsung-Yueh TSAI, Satoshi NAKAI, Wataru NISHIJIMA, Mitsumasa OKADA
  • Journal Title: Waste Management 30 Pages: 597-601
  • Peer Reviewed
• [Journal Article] オゾンを用いた塩素含有プラスチックの分離 (2009)
  • Author(s): 西嶋渉、奥田哲士
  • Journal Title: ペトロテック 32 Pages: 404-408
  • NAID: 10025531382
• [Journal Article] オゾン処理による塩化ビニルの選択的表面改質と分離への応用 (2009)
  • Author(s): 奥田哲士、西嶋渉、岡田光正
  • Journal Title: 29 Pages: 50-55
• [Journal Article] オゾン処理による塩化ビニルの選択的表面改質と分離への応用 (2009)
  • Author(s): 奥田哲士、西嶋渉、岡田光正
  • Journal Title: 機能材料 29 Pages: 50-55
• [Journal Article] HYDROPHILIZATION OF POLYVINYL CHLORIDE SURFACE BY OZONATION (2008)
  • Author(s): Keisuke KUROSE, Satoshi NAKAI, TSAI Tsung-Yueh, Tetsuji OKUDA, Wataru NISHIJIMA, Mitsumasa OKADA
  • Journal Title: Surface Review and Letters 15 Pages: 711-715
  • Peer Reviewed
• [Journal Article] Ozonation of trichloroethylene in acetic acid solution with soluble and solid humic acid (2008)
  • Author(s): Martha Alcantara, Tetsuji OKUDA, Tsung-Yueh TSAI, Wataru NISHIJIMA, Mitsumasa OKADA
  • Journal Title: Journal of Hazardous Materials 662 Pages: 662-667
  • Peer Reviewed
• [Journal Article] Experimental and mathematical evaluation of trichloroethylene removal from saturated soil using acetic acid with saturated ozone (2008)
  • Author(s): Martha Alcantara, Tetsuji OKUDA, Tsung-Yueh TSAI, Wataru NISHIJIMA, Mitsumasa OKADA
  • Journal Title: Separation and Purification Technology 52 Pages: 299-307
• [Journal Article] Selective recovery of PVC-free polymers from ASR polymers by ozonation and froth flotation (2008)
  • Author(s): Mallampati Srinivasa REDDY, Keisuke KUROSE, Tetsuji OKUDA, Wataru NISHIJIMA, Mitsumasa OKADA
  • Journal Title: Resources, Conservation and Recycling 52 Pages: 941-946
  • Peer Reviewed
• [Journal Article] Experimental and mathematical evaluation of trichloroethylene removal from saturated soil using acetic acid with saturated ozone (2008)
  • Author(s): Martha Alcdntara, Tetsuji OKUDA, Tsung-Yueh TSAI, Wataru NISHIJIMA, Mitsumasa OKADA
  • Journal Title: Separation and Purification Technology 52 Pages: 299-307
  • Peer Reviewed
• [Presentation] オゾン-生物ハイブリッド処理による界面活性剤の分解 (2010)
  • Author(s): 岡島大輔, 奥田哲士, 西嶋渉, 岡田光正, 他
  • Organizer: 第44回日本水環境学会年会
  • Place of Presentation: 日本(福岡)
• [Presentation] オゾン-生物ハイブリッド処理による界面活性剤の分解 (2010)
  • Author(s): 岡島大輔, 奥田哲士, 西嶋渉, 岡田光正, 他
  • Organizer: 第44回日本水環境学会年会
  • Place of Presentation: 福岡
• [Presentation] オゾンによる選択的表面酸化-浮遊選別による自動車破砕屑中のポリ塩化ビニルの分離 (2009)
  • Author(s): 奥田哲士, 西嶋渉, 岡田光正
  • Organizer: 環境資源工学会シンポジウム「リサイクル設計と分離精製技術」
  • Place of Presentation: 日本(東京)
  • Year and Date: 2009-02-13
• [Presentation] Separation of Chlorinated Plastic by Selective Twist Formation, Separation of Chlorinated Plastic by Selective Twist Formation (2009)
  • Author(s): Tetsuji Okuda, Mallampati Srinivasa Reddy, 他5名
  • Organizer: The 10th International symposium on East Asian Resources Recycling Technology (EARTH2009)
  • Place of Presentation: 韓国(Jejudo)
• [Presentation] SELECTIVE SURFACE OZONATION OF POLYVINYL CHLORIDE FOR ITS SEPARATION FROM WASTE PLASTIC MIXTURE BY FROTH FLOATATION (2009)
  • Author(s): Tetsuji Okuda, Keisuke Kurose, 他5名
  • Organizer: The 5th International Symposium on Feedstock and Mechanical Recycling of Polymeric Materials (ISFR)
  • Place of Presentation: 中国(Chengdu)
• [Presentation] オゾンを用いた親水化によるフィルム状塩素系プラスチックの沈降促進 (2009)
  • Author(s): 奥田哲士・M.S. レディ・中井智司・西嶋渉・岡田光正
  • Organizer: 第20回廃棄物資源循環学会研究発表会
  • Place of Presentation: 日本(名古屋)
• [Presentation] Removal of odorous compound on rubber seals using ozone in beverage industries (2009)
  • Author(s): Wataru Nishi jima, Tetsuji Okuda, 他2名
  • Organizer: 19th Ozone World Congress & Exhibition
  • Place of Presentation: 日本(東京)
• [Presentation] Separation of Poly Vinyl Chloride (PVC) from ASR by Froth flotation with Ozonation (2009)
  • Author(s): Mallampati Srinivasa REDDY, Tetsuji OKUDA, 他2名
  • Organizer: INTERNATIONAL CONFERENCE ON RECYCLING AND REUSE OF MATIRELS (ICRM-2009)
  • Place of Presentation: インド(Kerala)
• [Presentation] Separation of Poly Vinyl Chloride (PVC) from ASR by Froth flotation with Ozonation (2009)
  • Author(s): Mallampati Srinivasa REDDY, Tetsuji OKUDA, Wataru NISHIJIMA, Mitsumasa. OKADA
  • Organizer: INTERNATIONAL CONFERENCE ON RECYC LING AND REUSE OF MATIRELS (ICRM-2009)
  • Place of Presentation: インド、Kerala
• [Presentation] Removal of odorous compound on rubber seals using ozone in beverage industries (2009)
  • Author(s): Wataru Nishijima, Tetsuji Okuda, Toru Tsuzuki, Mitsumasa Okada
  • Organizer: 19th Ozone World Congress & Exhibition
  • Place of Presentation: 東京
• [Presentation] SELECTIVE SURFACE OZONATION OF POLYVINYL CHLORIDE FOR ITS SEPARATION FROM WASTE PLASTIC MIXTURE BY FROTH FL OATATION (2009)
  • Author(s): Tetsuji Okuda, Keisuke Kurose, Mallampati Srinivasa Reddy, Tsung-Yueh Tsai, Satoshi Nakai, Wataru Nishijima, Mitsumasa Okada
  • Organizer: The 5th International Symposium on Feedstock and Mechanical Recycling of Polymeric Materials (ISFR)
  • Place of Presentation: 中国、Chengdu
• [Presentation] Separation of Chlorinated Plastic by Selective Twist Formation (2009)
  • Author(s): Tetsuji Okuda, Mallampati Srinivasa Reddy, Takefumi Yamaguchi, Tsung-Yueh Tsai, Satoshi Nakai, Wataru Nishijima, Mitsumasa Okada
  • Organizer: Separation of Chlorinated Plastic by Selective Twist Formation, The 10th International symposium on East Asian Resources Recycling Technology (EARTH2009)
  • Place of Presentation: 韓国、Jejudo
• [Presentation] オゾンを用いた親水化によるフィルム状塩素系プラスチックの沈降促進 (2009)
  • Author(s): 奥田哲士・M.S.レディ・中井智司・西嶋渉・岡田光正
  • Organizer: 第20回廃棄物資源循環学会研究発表会
  • Place of Presentation: 名古屋
• [Presentation] Anti-cyanobacterial allelopathic effects of plants-used for artificial floating islands (2008)
  • Author(s): Satoshi NAKAI, Tetsuji OKUDA, Wataru NISHIJIMA, Mitsumasa OKADA
  • Organizer: 11th international conference on wetland systems technology for water pollution control
  • Place of Presentation: インドインドール市
  • Year and Date: 2008-11-01
• [Presentation] Heavy Metal Removal with Ion Exchanger Produced from Sawdust by a Novel Green Procedure in Solvent-free Conditions (2008)
  • Author(s): Tetsuji OKUDA, 他3名
  • Organizer: International Water Association World Water Congress and Exhibition
  • Place of Presentation: オーストリア(ウィーン)
  • Year and Date: 2008-09-08
• [Presentation] Heavy Metal Removal with Ion Exchanger Produced from Sawdust by a Novel Green Procedure in Solvent-free Conditions (2008)
  • Author(s): Tetsuji OKUDA, Ugo S. ORLANDO, Wataru NISHIJIMA, and Mitsumasa OKADA
  • Organizer: International Water Association World Water Congress and Exhibition
  • Place of Presentation: オーストリアウィーン市
  • Year and Date: 2008-09-08
• [Presentation] Separation of Poly (vinyl chloride) (PVC) from Automobile Shredder Residue (ASR) by Selective Surface Modification with Ozone and Froth Flotation (2007)
  • Author(s): Tetsuji Okuda, Mallampati Srinivasa REDDY, 他3名
  • Organizer: 2007WORLD CONGRESS ON OZONE AND ULTRAVIOLET TECHNOLOGIES (IOA-IUVA JOINT WORLD CONGRESS)
  • Place of Presentation: アメリカ合衆国(ロサンゼルス)
• [Presentation] Separation of Poly(vinyl chloride) (PVC) from Automobile Shredder Residue (ASR) by Selective Surface Modification with Ozone and Froth Flotation (2007)
  • Author(s): Tetsuji Okuda
  • Organizer: 2007WORLD CONGRESS ON OZONE AND ULTRAVIOLET TECHNOLOGIES (IOA-IUVA JOINT WORLD CONGRESS)
  • Place of Presentation: アメリカ合衆国
• [Patent(Industrial Property Rights)] プラスチック混合物からの高比重プラスチック分離方法 (2009)
  • Inventor(s): 西嶋渉、奥田哲士、中井智司、岡田光正
  • Industrial Property Rights Holder: 西嶋渉、奥田哲士、中井智司、岡田光正、特定非営利活動法人広島循環型社会推進機構
  • Industrial Property Number: 2009-181566
  • Filing Date: 2009-08-05