Heavy metal adsorption on bacterially produced FeS

Heavy metal adsorption on bacterially produced FeS

This paper describes experiments to investigate the adsorbent properties of an iron sulphide material produced by sulphate reducing microorganisms when they are grown with a substrate containing appreciable quantities of iron. It is found that the material when compared with other adsorbents has exc...

Full description

Saved in:
Bibliographic Details
Published in:Minerals engineering Vol. 8; no. 10; pp. 1097 - 1108
Main Authors: Watson, J.H.P., Ellwood, D.C., Deng, Qixi, Mikhalovsky, S., Hayter, C.E., Evans, J.
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 1995
Elsevier Science
Subjects:
chemical stability
chemisorption
Chemistry
Exact sciences and technology
General and physical chemistry
heavy metals
iron sulphide
Microbially produced adsorbent
Solid-liquid interface
Surface physical chemistry
Microbially produced adsorbent
chemisorption
chemical stability
heavy metals
iron sulphide
Chemisorption
Desulfovibrio
Chemical stability
Metal ion
Surface properties
Bacteria
Adsorbent
Experimental study
Iron sulfide
Heavy metal
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper describes experiments to investigate the adsorbent properties of an iron sulphide material produced by sulphate reducing microorganisms when they are grown with a substrate containing appreciable quantities of iron. It is found that the material when compared with other adsorbents has excellent adsorptive properties with respect to specific uptake of a range of metals and the level to which the concentrations of the metal ions can be reduced when in contact with the adsorbent. The structure of the adsorbent revealed by EXAFS corresponds with no known iron sulphide and an examination of the adsorbed ions shows that many are chemisorbed. When the adsorbent is stored in the presence of air for periods of a few months a mixed oxide of iron is formed.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0892-6875
1872-9444
DOI:10.1016/0892-6875(95)00075-2