A comparative study of the magnetic separation characteristics of magnetotactic and sulphate reducing bacteria
A comparative study of the magnetic separation characteristics of magnetotactic and sulphate reducing bacteria
Many microorganisms have an affinity to accumulate metal ions onto their surfaces which results in metal loading of the biomass. Microbial biomineralization of iron results in a biomass which is often highly magnetic and can be separated from water systems by the application of a magnetic field. This article reports on the magnetic separation of biomass containing microbial iron oxide (Fe3O4, present within magnetotactic bacteria) and iron sulphide (Fe1?XS, precipitated extracellularly by sulphate reducing bacteria) in a single wire cell. Since such bacteria can be separated magnetically, their affinity to heavy metal or organic material accumulation render them useful for the removal of pollutants from waste water. The relative merits of each bacterium to magnetic separation techniques in terms of applied magnetic field and processing conditions are discussed.
6444-6446
Bahaj, A.S.
a64074cc-2b6e-43df-adac-a8437e7f1b37
James, P.A.B.
da0be14a-aa63-46a7-8646-a37f9a02a71b
Moeschler, F.D.
77c0ee18-3a8e-4512-bb28-acecf94c8720
1 June 1998
Bahaj, A.S.
a64074cc-2b6e-43df-adac-a8437e7f1b37
James, P.A.B.
da0be14a-aa63-46a7-8646-a37f9a02a71b
Moeschler, F.D.
77c0ee18-3a8e-4512-bb28-acecf94c8720
Bahaj, A.S., James, P.A.B. and Moeschler, F.D.
(1998)
A comparative study of the magnetic separation characteristics of magnetotactic and sulphate reducing bacteria.
Journal of Applied Physics, 83 (11), .
(doi:10.1063/1.367733).
Abstract
Many microorganisms have an affinity to accumulate metal ions onto their surfaces which results in metal loading of the biomass. Microbial biomineralization of iron results in a biomass which is often highly magnetic and can be separated from water systems by the application of a magnetic field. This article reports on the magnetic separation of biomass containing microbial iron oxide (Fe3O4, present within magnetotactic bacteria) and iron sulphide (Fe1?XS, precipitated extracellularly by sulphate reducing bacteria) in a single wire cell. Since such bacteria can be separated magnetically, their affinity to heavy metal or organic material accumulation render them useful for the removal of pollutants from waste water. The relative merits of each bacterium to magnetic separation techniques in terms of applied magnetic field and processing conditions are discussed.
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Published date: 1 June 1998
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Local EPrints ID: 74548
URI: http://eprints.soton.ac.uk/id/eprint/74548
ISSN: 0021-8979
PURE UUID: 91a93b3c-cf52-44b5-a518-5c3a8c397a71
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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:37
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Author:
F.D. Moeschler
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