• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Quantitative evaluation of the partition coefficients of solutes between polyamide active layers of RO membranes and water using quartz crystal microbalance

Research Project

Project/Area Number 16K12617
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Environmental engineering and reduction of environmental burden
Research InstitutionYamaguchi University

Principal Investigator

Suzuki Tasuma  山口大学, 大学院創成科学研究科, 准教授 (00577489)

Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords逆浸透膜 / ポリアミド / 分配係数 / 浸透膜
Outline of Final Research Achievements

The final objective of this study was to quantitatively evaluate the partition coefficients of solutes between polyamide active layers of RO membranes and water using quartz crystal microbalance (QCM). As the first step to achieve this final objective, we first measured the charge density in polyamide active layer of a commercial reverse osmosis membrane. Cs+ was chosen as a counter ion of deprotonated carboxy group (R-COO-), and the mass of Cs+ that associates with R-COO- was measured with a QCM. Experimental data showed that the charge density obtained in this study at the pH range between 4.0-9.0 was in good agreement with those obtained with an existing method using Rutherford backscattering spectrometry. Then, the method was applied to measure the partition coefficients of o-cresol and acetanilide between polyamide active layers of RO membranes and water. It was found that both physical and chemical properties of solutes control partitioning into polyamide active layers.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (3 results)

All 2017

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (2 results)

  • [Journal Article] 水晶振動子マイクロバランスを用いたポリアミド系複合逆浸透膜の活性層内電荷密度の測定2017

    • Author(s)
      田中良平, 原田美冬, 鈴木祐麻, 新苗正和
    • Journal Title

      日本海水学会誌

      Volume: 71 Pages: 97-102

    • NAID

      130007491940

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 水晶振動子マイクロバランスを用いたポリアミド系複合逆浸透膜の活性層内電荷密度の測定2017

    • Author(s)
      田中良平
    • Organizer
      資源・素材学会H29年度春季大会
    • Place of Presentation
      千葉工業大学(千葉県習志野市)
    • Year and Date
      2017-03-27
    • Related Report
      2016 Research-status Report
  • [Presentation] 水晶振動子マイクロバランスを用いたポリアミド系複合逆浸透膜の活性層内電荷密度の測定2017

    • Author(s)
      田中良平
    • Organizer
      日本海水学会若手会第8回学生研究発表会
    • Place of Presentation
      海峡メッセ下関(山口県下関市)
    • Year and Date
      2017-03-02
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2019-03-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi