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ORIGINAL RESEARCH
Sequential Extraction of Chromium from Galvanic Wastewater Sludge
A. Bielicka, I. Bojanowska*, A. Wiśniewski
Department of Environmental Engineering, Faculty of Chemistry, University of Gdańsk,
18 J. Sobieskiego St., 80 - 852 Gdańsk, Poland
18 J. Sobieskiego St., 80 - 852 Gdańsk, Poland
Pol. J. Environ. Stud. 2005;14(2):145-148
KEYWORDS
ABSTRACT
The sequential extraction of chromium from galvanic wastewater sludge was studied. A five-step se-quential fractionation scheme was used to partition the chromium into exchangeable (F I), acid-soluble (F II), reducible (F III), organic matter (F IV) and residual (F V) fractions. The results of investigations indicate that 59.5% of chromium occurred in residual fraction, which is permanently immobilized, whereas 40.5% of chromium in galvanic wastewater sludge can be released to ecosystems under changing natural conditions.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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| eISSN: | 2083-5906 |
| ISSN: | 1230-1485 |
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