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2004 Fiscal Year Final Research Report Summary

Adsorption-desorption behavior of dioxins in waste water using temperature-sensitive polymer gel

Research Project

Project/Area Number 15550141
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Environmental chemistry
Research InstitutionKansai University

Principal Investigator

YAMAMOTO Hideki  Kansai University, Faculty of Engineering, Professor, 工学部, 教授 (30174808)

Co-Investigator(Kenkyū-buntansha) SHIBATA Junji  Kansai University, Faculty of Engineering, Professor, 工学部, 教授 (70067742)
MURAYAMA Norihiro  Kansai University, Faculty of Engineering, Research Assistant, 工学部, 助手 (90340653)
Project Period (FY) 2003 – 2004
KeywordsPolymer gel / Polyvinylalcohol / Adsorption Removal / Functional Polymer / Toluene / Phenol / Adsorption / Removal Test
Research Abstract

Removal of harmful organic materials in water has been carried out using adsorption and desorption characteristics of the temperature sensitive polymer gel which is synthesized from polyvinylalcohol(PVA). Two types of polymerization degrees (1700 and 2500) of PVA were used in this experiment. The gel volume in water was induced at around 310K for 1700 and 320K for 2500. At higher temperatures, the temperature sensitive polymer gels shrink because of discharging water, whereas at lower temperature, the gel on the contrary swells because of absorbing water. The reversibility on volume change of the synthesized polymer gel is confirmed by temperature swing.
The adsorption behavior of organic compounds onto the PVA polymer gels in water was investigated at the various temperatures. The adsorption amount of organic compounds increase remarkably at higher than about 310K for 1700 and 320K for 2500. It was confirmed that the organic compound in water could be adsorbed and desorbed onto the PVA polymer gel against temperature reversibly. The mechanism of adsorption and desorption of organic compounds onto the gel can be explained by hydration and dehydration of the polymer gel. The driving force of adsorption is thought to be the hydrophobic interaction between PVA polymer gel and organic compounds.

  • Research Products

    (5 results)

All 2003

All Journal Article (5 results)

  • [Journal Article] Novel Treatment Process of Harmful Organic Materials in Waste Water Using Temperature-Sensitive Gel Synthesized from PVA2003

    • Author(s)
      Hideki Yamamoto
    • Journal Title

      Material Transactions 44

      Pages: 2436-2440

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 感温性高分子ゲルの温度スイングによる液中の塩素系および臭素系有害有機物の吸着除去2003

    • Author(s)
      山本秀樹
    • Journal Title

      化学工学論文集 29

      Pages: 395-399

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Volumetric Change and Surface Properties of Temperature-Sensitive Polyvinylalcohol (PVA) Hydrogel2003

    • Author(s)
      Hideki Yamamoto
    • Journal Title

      International Journal of Thermophysics 24

      Pages: 1385-1394

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Novel Treatment Process of Harmful Organic Materials in Waste Water Using Temperature-Sensitive Gel Synthesized from PVA2003

    • Author(s)
      Hideki Yamamoto
    • Journal Title

      Material Transactions 44,12

      Pages: 2436-2440

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Adosorption removal of organic chlorine and bromine compounds from waste water using temperature-sensitive polymer hydrogel with temperature swing2003

    • Author(s)
      Hideki Yamamoto
    • Journal Title

      Kagaku Kogaku Ronbunsyu Vol.29

      Pages: 395-399

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

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Published: 2006-07-11  

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