- Tytuł:
- Fractionation of Heavy Metals (Pb, Cr and Cd) In Municipal Sewage Sluges from Podlasie Province
- Autorzy:
- Łukowski, A.
- Powiązania:
- https://bibliotekanauki.pl/articles/125087.pdf
- Data publikacji:
- 2017
- Wydawca:
- Polskie Towarzystwo Inżynierii Ekologicznej
- Tematy:
-
lead
cadmium
chromium
metal fraction
sewage sludge - Opis:
- 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 Pb, Cd and Cr, organic matter and dry mass. The contents of the above-mentioned elements in fractions were evaluated using modified BCR method (four fractions: 1-acid soluble and exchangeable, 2-reducible, 3-oxidizable, 4-residual). The lead content (mean values) in particular fractions can be arranged quantitatively in a sequence: F4 (51.4%) > F2 (30.3%) > F3 (19.2%) > F1 (7.2%), in the case of cadmium: F4 (49.0%) > F2 (23.6%) > F3 (18.9%) > F1 (15.5%) and in the case of chromium: F4 (65.0%) > F3 (30.6%) > F2 (6.8%) > F1 (3.1%). Cumulative content of lead in mobile fractions (F1+F2+F3) ranged from 20.7% to 89.9%; for cadmium from 32.9% to 76.9% and for chromium from 27.5 to 58.6% of pseudo-total content.
- Źródło:
-
Journal of Ecological Engineering; 2017, 18, 1; 132-138
2299-8993 - Pojawia się w:
- Journal of Ecological Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł