Recovery of Ionic Substances from Wastewater by Seeded Reaction Crystallization

Yoshiharu Shimizu, Izumi Hirasawa

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Crystallization is a suitable process for selective separation of a target ion since ions can be removed and recovered as purified and stable materials. Methods of recovery and recycling of phosphate and fluoride ions have been investigated to determine the optimum crystallization conditions like supersaturation, temperature, pH, impurities, and kind of solvents. As a result, by selecting the optimum crystal operation conditions for each wastewater composition, spherical-shape crystals with desired purity and size are obtained and generation of sludge is minimized.

Original languageEnglish
Pages (from-to)1051-1054
Number of pages4
JournalChemical Engineering and Technology
Volume35
Issue number6
DOIs
Publication statusPublished - 2012 Jun 1

Keywords

  • Crystallization
  • Recycling
  • Seed crystals
  • Water treatment

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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