ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Creation of Nanomagnetite Aggregated Iron Oxide Hydroxide for Magnetically Removal of Fluoride and Phosphate from Wastewater
Akbar EskandarpourKensuke SassaYoshiyuki BandoHiroshi IkutaKazuhiko IwaiMasazumi OkidoShigeo Asai
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2007 Volume 47 Issue 4 Pages 558-562


A new chemical adsorbent for fluoride and phosphate removals was produced by applying a novel nanomagnetite aggregation process through the formation procedure of an iron oxide hydroxide, i.e., schwertmannite. Although there was no evidence of magnetite related peaks in the XRD pattern of the new adsorbent, because of the very small amount of the used magnetite particles, the SEM picture reveals a surface alteration on the crystal structure of the new adsorbent comparing to the schwertmannite. The results of magnetic removal of fluoride and phosphate using the new adsorbent indicate that nanomagnetite aggregation process not only improves the magnetic property, but also provides a highly-promoted fluoride and phosphate adsorption capacities comparing to the schwertmannite.

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© 2007 by The Iron and Steel Institute of Japan
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