Scores:
12
MNiSW
120.9
ICV
 
 

FRACTIONATION OF SELECTED HEAVY METALS (Zn, Ni, Cu) IN MUNICIPAL SEWAGE SLUDGES FROM PODLASIE PROVINCE

 
1
Bialystok University of Technology, Faculty of Civil and Environmental Engineering, Wiejska 45A, 15-351 Bialystok, Poland
J. Ecol. Eng. 2017; 18(3):133–139
Publish date: 2017-05-02
KEYWORDS:
TOPICS:
ABSTRACT:
In the samples of fresh dehydrated sewage sludges from municipal treatment plants in Grajewo, Bielsk Podlaski, Sokółka, Dąbrowa Białostocka, Knyszyn, Mońki, Augustów, Suwałki, Sejny and Suchowola the following determinations were made: pH, pseudo-total content of Zn, Ni and Cu, organic matter and dry mass. The contents of above-mentioned elements in fractions were evaluated using modified BCR method (four fractions: F1-acid soluble and exchangeable, F2-reducible, F3-oxidizable, F4-residual). The zinc content (mean values) in particular fractions can be arranged quantitatively in a sequence: F3 (60.8 %) > F2 (20.0%) > F4 (19.9%) > F1 (3.9%), in the case of nickel: F3 ( 48.6%) > F2 (25.2%) > F4 (25.1%) > F1 (5.6%) and in the case of copper: F4 (66.3%) > F3 (35.3%) > F1 (4.2%) > F2 (3.0%). Cumulative content of zinc in mobile fractions (F1+F2+F3) ranged from 76.0 to 93.3%; for nickel from 56.3 to 89.6% and for copper from 28.8 to 53.3% of pseudo-total content.
CORRESPONDING AUTHOR:
Adam Łukowski   
Bialystok University of Technology, Faculty of Civil and Environmental Engineering, Wiejska 45A, 15-351 Bialystok, Poland