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Development of a novel non-powered water suction pump

Research Project

Project/Area Number 18K19883
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 64:Environmental conservation measure and related fields
Research InstitutionHosei University

Principal Investigator

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

Co-Investigator(Kenkyū-buntansha) 椿 淳一郎  公益財団法人名古屋産業科学研究所, 研究部, 上席研究員 (50109295)
Project Period (FY) 2018-06-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywords沈降濃縮層 / 浸透圧 / 吸水 / 微粒子濃縮層 / 微粒子 / 電気二重層 / スラリー
Outline of Final Research Achievements

In order to develop a novel non-powered water suction pump by utilizing the osmotic pressure generated in the concentrated particles layer, the effect of slurry conditions on the water suction ability was systematically investigated. It was found that the largest water suction flux could be obtained when particles with the smallest primary particle size were dispersed well. In addition it was shown that the initial particle concentration of the slurry should be as large as possible for the large water suction flux.
Furthermore, it was demonstrated that the concentrated particles layer for alumina slurry could keep sucking water for almost 150 days even though the water suction flux became gradually small.

Academic Significance and Societal Importance of the Research Achievements

従来の浸透圧ポンプは、吸水に伴い溶質濃度が低下するため、吸水を長期間継続することは難しかった。しかし本研究では微粒子の沈降濃縮層を利用することで、浸透圧の発生源である電気二重層の重なりを長期間維持し、吸水を持続できることを見出した点に学術的、工学的な意義を有する。本研究の成果を活かし、多段の吸水装置を開発することで、乾燥地帯での地下水の汲み上げによる緑化などへと応用が可能になると期待される。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (3 results)

All 2019 2018

All Presentation (2 results) (of which Int'l Joint Research: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Presentation] Investigation of osmotic pressure generation and water sucking behavior for the dense sediment of well-dispersed slurry2019

    • Author(s)
      Gaku TSUTSUI, Takamasa MORI, JunIchiro TSUBAKI
    • Organizer
      18th Asian Pacific Confederation of Chemical Engineering Congress
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 微粒子沈降濃縮層の浸透圧と吸水現象2018

    • Author(s)
      森 隆昌、椿 淳一郎
    • Organizer
      2018年度粉体工学会春期研究発表会
    • Related Report
      2018 Research-status Report
  • [Patent(Industrial Property Rights)] 送水装置及び送水方法2018

    • Inventor(s)
      森 隆昌、椿 淳一郎、山田 克彦
    • Industrial Property Rights Holder
      法政大学、海和工業株式会社
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-086714
    • Filing Date
      2018
    • Related Report
      2018 Research-status Report

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Published: 2018-07-25   Modified: 2021-02-19  

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