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Sorption of Copper Ions by Biogenic Iron Sulphides

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Abstract:

Biogenic iron sulphides are excellent adsorbents for various heavy metals ions. Consequently, they have practical application for the elimination of heavy metals from waste waters. One of the principles for the iron sulphides preparation is the application of sulphatereducing bacteria. This biological-chemical method is based on the ability of these bacteria to reduce sulphates to hydrogen sulphide, which binds with the ferrous cations to form insoluble precipitates – iron sulphides. Under certain bacterial growth conditions biogenic iron sulphides can be magnetic. The aim of this work is to study the possibility of using SRB for the preparation of iron sulphides, which were used subsequently in the framework of sorption tests to eliminate copper ions from model solutions.

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Periodical:

Advanced Materials Research (Volumes 20-21)

Pages:

631-634

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.20-21.631

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Online since:

July 2007

Authors:

Alena Luptakova, E. Macingova

Keywords:

Biogenic Iron Sulphides, Bioremediation, Sulfate-Reducing Bacteria (SRB)

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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