Removal of As, Cd, Hg and Pb ions from solution by adsorption with bacterially-produced magnetic iron sulfide particles using high gradient magnetic separation

Author

Ito, Daisuke ; Miura, Kuniaki ; Ichimura, Tetsunari ; Ihara, Ikkou ; Watanabe, Tsuneo

Author_Institution

Graduate Sch. of Eng., Tokyo Metropolitan Univ., Japan

Volume

14

Issue

2

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1551

Lastpage

1553

Abstract

Iron sulfide (FeS) particles produced by sulfate-reducing bacteria are an excellent adsorbent for heavy metal ions. To select the bacteria which produce a magnetic FeS as an adsorbent for the high gradient magnetic separation, an open gradient magnetic separator operating at a 10 Tesla magnetic field was used. Magnetization study showed that the magnetic FeS particles consist of paramagnetic like and ferro-magnetic component.

Keywords

adsorption; ions; iron compounds; magnetic particles; magnetic separation; magnetisation; microorganisms; 10 T; As; As ions; Cd; Cd ions; FeS; FeS particles; Hg; Hg ions; Pb; Pb ions; adsorbent; adsorption; bacterially-produced magnetic iron sulfide particles; ferro-magnetic component; heavy metal ions; high-gradient magnetic separation; magnetization; open-gradient magnetic separator; paramagnetic-like component; sulfate-reducing bacteria; Boring; Indium tin oxide; Iron; Magnetic separation; Mercury (metals); Microorganisms; Particle separators; Superconducting magnets; Surface contamination; Water pollution; Heavy metal; high gradient magnetic separation; magnetic iron sulfide; sulfate reducing bacteria;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2004.830704

Filename

1325095