Integrated Utilization Technologies of Sea Water Resources

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  • Takiyama Hiroshi
    Graduate School of Bio-Applications and Systems Engineering (BASE), Tokyo University of Agriculture and Technology (TUAT)
  • Ohmura Ryo
    Department of Mechanical Engineering, Keio University
  • Masaoka Koji
    Research Institute of Salt and Sea Water Science, The Salt Industry Center of Japan
  • Misumi Ryuta
    Division Materials Science and Chemical Engineering, Faculty of Engineering, Yokohama National University
  • Matsumoto Masakazu
    Center of Resource and Environmental Sciences, Chiba Institute of Technology
  • Onoe Kaoru
    Department of Life and Environmental Sciences, School of Engineering, Chiba Institute of Technology

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Other Title
  • 海水溶存資源の総合的利用技術
  • カイスイ ヨウゾン シゲン ノ ソウゴウテキ リヨウ ギジュツ

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Abstract

In this review, the following five contents were mainly studied for investigating the integrated utilization technology of sea water resources. (1) Re-consideration of the sea water resources. (2) Reappraisal of the production economy of the resources. (3) Trend survey of utilization technology of sea water resources. (4) Proposal of novel integrated utilization process for sea water resources. The novel utilization process is an integrated process which consists of CO2 capture, desalination, salt production and soda process. This process flow is as follows: The sea water is fed into a reverse osmotic membrane process after sulfate ion is removed. The residual of desalination water is fed to an ion exchange membrane as condensed sea water. The condensed sea water is fed into a salt production process. The salt is fed in to an electrolytic soda process.

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