Creation of Nanomagnetite Aggregated Iron Oxide Hydroxide for Magnetically Removal of Fluoride and Phosphate from Wastewater

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 ad...

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Bibliographic Details
Published inISIJ International Vol. 47; no. 4; pp. 558 - 562
Main Authors Eskandarpour, Akbar, Sassa, Kensuke, Bando, Yoshiyuki, Ikuta, Hiroshi, Iwai, Kazuhiko, Okido, Masazumi, Asai, Shigeo
Format Journal Article
LanguageEnglish
Published The Iron and Steel Institute of Japan 2007
Subjects
electromagnetic processing of materials
fluoride removal
magnetic filter
nanomagnetite
phosphate removal
schwertmannite
wastewater treatment
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Summary: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.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0915-1559
1347-5460
DOI:10.2355/isijinternational.47.558