Desalination technologies for greening the desert

DOI
  • NIGEME Eisei
    Design Water Co., Ltd. (JAPAN MACRO-ENGINEERS SOCIETY Secretariat)
  • KOJIMA Toshinori
    Non-profit corporation Macro Engineering Research Institute (Former Professor of Seikei University, The Japanese Association for Arid Land Studies member, Vice Chairman of JAPAN MACRO-ENGINEERS SOCIETY)

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Other Title
  • 淡水化技術～砂漠を緑に～

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Description

<p>For greening the desert, fresh water cost is required to be less than 50 ¥/m3 or less at the plantation site from the view point of economical productivity of greening. Under the condition of water transportation/distribution cost of 20-30 ¥/m3, desalination cost should be less than 30-20 ¥/m3. Furthermore, the energy sources and the cost of the electric power should be qualified for the production, transportation, and distribution of the huge amount of produced fresh water together with the treatment of salt-concentrated water.</p><p>In conclusion, the energy sources and cost for water production from deep seawater are qualified and reduced by the following system: Combination of rough NF/rough RO/TC is introduced and the concentrated water is used for salt production. Low-temperature solar-thermal-energy conversion is used as a stable, safe, low-cost, and environment-friendly power-generation system.</p><p>As a possible future energy-saving system, the absorption heat pump one is also proposed, although it is under the conceptual design level, at present.</p>

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Details 詳細情報について

  • CRID
    1390286981362824960
  • NII Article ID
    130007960938
  • DOI
    10.14976/jals.30.3_35
  • ISSN
    21891761
    09176985
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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