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Mechanical vapor recompression (MVR) and electrodialysis (ED) are very energy-efficient electrotechnologies to recover valuable products from dilute waste streams into concentrated products. MVR can concentrate streams with much less energy than conventional evaporation. ED can also be used for concentrating products, plus extracting and separating products, purifying solutions, and regenerating salts into their base and acid which could be concentrated further by MVR. There are several competing and complementary technologies to MVR. Their energy consumptions are compared, and some MVR case studies are presented. ED applications are numerous as well, but salt splitting is of particular interest.

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Combining Mechanical Vapor Recompression with Electrodialysis for the Recovery of Valuable Chemicals

  • 会议论文

  • 发表日期：

    2025年

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  • Jean-Noël Cloutier,
  • Georges Houlachi

摘要

Mechanical vapor recompression (MVR) and electrodialysis (ED) are very energy-efficient electrotechnologies to recover valuable products from dilute waste streams into concentrated products. MVR can concentrate streams with much less energy than conventional evaporation. ED can also be used for concentrating products, plus extracting and separating products, purifying solutions, and regenerating salts into their base and acid which could be concentrated further by MVR. There are several competing and complementary technologies to MVR. Their energy consumptions are compared, and some MVR case studies are presented. ED applications are numerous as well, but salt splitting is of particular interest.