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Elucidation of osmotic pressure generated by concentrated layer of settled particles and its application to desalination of seawater

Research Project

Project/Area Number 25550089
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Design and evaluation of sustainable and environmental conscious system
Research InstitutionHosei University

Principal Investigator

MORI Takamasa  法政大学, 生命科学部, 准教授 (20345929)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords刺激応答性スラリー / ドロー溶液 / 正浸透 / スラリー / 浸透圧
Outline of Final Research Achievements

It was found that the osmotic pressure of the concentrated layer formed by particle settling and thickening increased with an increase in particle concentration, however, the osmotic pressure was quite small as a draw solution of FO process. It was suggested that the combination of a polymer solution or inorganic salt solution which can produce a relatively large osmotic pressure due to its large number concentration of molecules should be necessary. Therefore, the alumina slurries containing a temperature responsive polymer, PNIPAM were prepared and investigated its potential as a novel draw solution. It was demonstrated that suction and separation of water could be easily and repeatedly done by changing the temperature of the stimulus responsive slurry.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (1 results)

All 2015

All Presentation (1 results)

  • [Presentation] 刺激応答性スラリーを利用した正浸透技術開発のための基礎検討2015

    • Author(s)
      森 隆昌,後藤 太善
    • Organizer
      分離技術会年会2015
    • Place of Presentation
      明治大学生田キャンパス(神奈川県・川崎市)
    • Year and Date
      2015-05-30 – 2015-05-31
    • Related Report
      2014 Annual Research Report

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Published: 2014-07-25   Modified: 2019-07-29  

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