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Separation of heavy metals from water solutions at the laboratory scale

Pott, Britt-Marie LU and Mattiasson, Bo LU (2004) In Biotechnology Letters 26(5). p.451-456
Abstract
Separation of heavy metals from water may be done by sulphide precipitation. In order to make the metal sulphides more valuable for reuse, they should be as pure as possible. To separate the metals from each other during the precipitation process different parameters as pH, sulphide concentration and redox potential may be controlled. Adjustment of the redox potential to specific values results in separation of copper from cadmium even at the same pH. In the copper precipitation step 98.7 +/- 0.5% was precipitated and the remaining part was transferred to the cadmium precipitation step where 0.7 +/- 0.5% of the copper precipitated. The main part of cadmium (95.6 +/- 1.3%) was precipitated in the second step. These results show that it is... (More)
Separation of heavy metals from water may be done by sulphide precipitation. In order to make the metal sulphides more valuable for reuse, they should be as pure as possible. To separate the metals from each other during the precipitation process different parameters as pH, sulphide concentration and redox potential may be controlled. Adjustment of the redox potential to specific values results in separation of copper from cadmium even at the same pH. In the copper precipitation step 98.7 +/- 0.5% was precipitated and the remaining part was transferred to the cadmium precipitation step where 0.7 +/- 0.5% of the copper precipitated. The main part of cadmium (95.6 +/- 1.3%) was precipitated in the second step. These results show that it is possible to separate copper from cadmium by the use of redox potential control. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Biotechnology Letters
volume
26
issue
5
pages
451 - 456
publisher
Springer
external identifiers
  • wos:000189363300013
  • pmid:15104146
  • scopus:1642356003
ISSN
1573-6776
DOI
10.1023/B:BILE.0000018267.09698.cc
language
English
LU publication?
yes
id
04097748-2c58-46ea-86d4-7d3ca23ede7c (old id 140730)
date added to LUP
2007-07-02 16:40:24
date last changed
2017-10-01 04:36:25
@article{04097748-2c58-46ea-86d4-7d3ca23ede7c,
  abstract     = {Separation of heavy metals from water may be done by sulphide precipitation. In order to make the metal sulphides more valuable for reuse, they should be as pure as possible. To separate the metals from each other during the precipitation process different parameters as pH, sulphide concentration and redox potential may be controlled. Adjustment of the redox potential to specific values results in separation of copper from cadmium even at the same pH. In the copper precipitation step 98.7 +/- 0.5% was precipitated and the remaining part was transferred to the cadmium precipitation step where 0.7 +/- 0.5% of the copper precipitated. The main part of cadmium (95.6 +/- 1.3%) was precipitated in the second step. These results show that it is possible to separate copper from cadmium by the use of redox potential control.},
  author       = {Pott, Britt-Marie and Mattiasson, Bo},
  issn         = {1573-6776},
  language     = {eng},
  number       = {5},
  pages        = {451--456},
  publisher    = {Springer},
  series       = {Biotechnology Letters},
  title        = {Separation of heavy metals from water solutions at the laboratory scale},
  url          = {http://dx.doi.org/10.1023/B:BILE.0000018267.09698.cc},
  volume       = {26},
  year         = {2004},
}