Electrodialysis of brine solutions discharged from an RO plant

E. Korngold, L. Aronov, N. Daltrophe

Research output: Contribution to journalArticlepeer-review

115 Scopus citations


Electrodialysis (ED) experiments were carried out on RO brine solutions, saturated with CaSO4 and or silica with the aim to increase their concentrations from 1.5 to 10%, thus reducing both effluent volume and disposal costs. A pilot plant ED unit was built in which the brine circulating through the ED brine cells passed through a separate CaSO4 precipitator containing gypsum seeds. The feed to the ED unit was the brine discharged from the RO unit, which was operating on brackish water from Mashabei-Sadeh. The salt concentration of the ED feed was reduced to 18-20 mN and was then mixed with the RO permeate.

Original languageEnglish
Pages (from-to)215-227
Number of pages13
Issue number1-3
StatePublished - 1 Jun 2009


  • Brine discharged
  • Electrodialysis
  • Gypsum seeding

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • General Materials Science
  • Water Science and Technology
  • Mechanical Engineering


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