Extraction of heavy metals using microorganisms and high gradient magnetic separation
Extraction of heavy metals using microorganisms and high gradient magnetic separation
It is pointed out that a large number of microorganisms have affinity to ingest or precipitate ion species onto their surfaces. In the case of magnetic ionic species, magnetic separation methods could be applied to remove the ion-loaded organisms from the surroundings. A wide range of metal ions were studied in the experiments described. The results show that the microorganisms developed an appreciable magnetic moment which lends to their removal by magnetic separation. The biomagnetic separation process was shown to be effective in reducing the concentration of a large number of ions either in multi-ion solutions or in a single metal ion solution. Reduction in most instances was from 10-100 p.p.m. to 10-100 p.p.b., a 90% removal. The single wire technique proved useful in the magnetic characterization of the microorganisms. The results indicate that this procedure is effective in estimating the magnetic susceptibilities of individual particles. The process described will have applications in the mineral processing industry, in the treatment of effluents from the nuclear industry, and in the recovery of precious metals
5371-5374
Bahaj, A.S.
a64074cc-2b6e-43df-adac-a8437e7f1b37
Ellwood, D.C.
a7dc8f2a-f392-42b4-a022-fa5a58cf6be6
Watson, J.H.P.
e4f7e9d2-6299-4626-bc44-1ee8545899e6
November 1991
Bahaj, A.S.
a64074cc-2b6e-43df-adac-a8437e7f1b37
Ellwood, D.C.
a7dc8f2a-f392-42b4-a022-fa5a58cf6be6
Watson, J.H.P.
e4f7e9d2-6299-4626-bc44-1ee8545899e6
Bahaj, A.S., Ellwood, D.C. and Watson, J.H.P.
(1991)
Extraction of heavy metals using microorganisms and high gradient magnetic separation.
IEEE Transactions on Magnetics, 27 (6), .
(doi:10.1109/20.278842).
Abstract
It is pointed out that a large number of microorganisms have affinity to ingest or precipitate ion species onto their surfaces. In the case of magnetic ionic species, magnetic separation methods could be applied to remove the ion-loaded organisms from the surroundings. A wide range of metal ions were studied in the experiments described. The results show that the microorganisms developed an appreciable magnetic moment which lends to their removal by magnetic separation. The biomagnetic separation process was shown to be effective in reducing the concentration of a large number of ions either in multi-ion solutions or in a single metal ion solution. Reduction in most instances was from 10-100 p.p.m. to 10-100 p.p.b., a 90% removal. The single wire technique proved useful in the magnetic characterization of the microorganisms. The results indicate that this procedure is effective in estimating the magnetic susceptibilities of individual particles. The process described will have applications in the mineral processing industry, in the treatment of effluents from the nuclear industry, and in the recovery of precious metals
This record has no associated files available for download.
More information
Published date: November 1991
Identifiers
Local EPrints ID: 74997
URI: http://eprints.soton.ac.uk/id/eprint/74997
ISSN: 0018-9464
PURE UUID: f42eeda4-8dc0-47f9-bc70-604d9eb21bec
Catalogue record
Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:32
Export record
Altmetrics
Contributors
Author:
D.C. Ellwood
Author:
J.H.P. Watson
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics