Mineral Recovery System in a CEEF (2)

Paper #:
  • 951581

Published:
  • 1995-07-01
Citation:
Funabashi, K., Kurokawa, H., Yoshioka, C., Sugawara, S. et al., "Mineral Recovery System in a CEEF (2)," SAE Technical Paper 951581, 1995, https://doi.org/10.4271/951581.
Pages:
8
Abstract:
A unique recovery system for NaCI (salt) from urine, which consists of electrodialysis (ED) and crystallization processes is proposed. The possibility of the mineral recovery included in urine is shown in a previous report. To improve the purity of the produced salt, pH control is needed as a pretreatment. By controlling pH of the feed solution to about 10, multivalent ions such as Ca2+ and Mg2+ are crystallized as phosphate solids which can be separated by filtration. As well as raising the NaCI purity, this controls scaling b y multivalent ions.
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