Content of PAHs, activities of $\gamma$-radionuclides and ecotoxicological assessment in biochars
PBN-AR
Instytucja
Wydział Geologii, Geofizyki i Ochrony Środowiska (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
Polish Journal of Chemical Technology
ISSN
1509-8117
EISSN
1899-4741
Wydawca
De Gruyter Open Sp. z o.o. ; Technical University of Szczecin Publishing House
DOI
Rok publikacji
2016
Numer zeszytu
4
Strony od-do
27--35
Numer tomu
18
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.55
Autorzy
(liczba autorów: 9)
Pozostali autorzy
+ 7
Słowa kluczowe
EN
sewage sludge
PAHs
biochar
γ-radionuclides
Vibrio fischeri
Streszczenia
Język
EN
Treść
The aim of this research was to determine the effect of thermal conversion temperature and plant material addition to sewage sludge on the PAHs content and the activity of selected γ-radionuclides in biochars, and to conduct an ecotoxicological assessment. The pyrolysis of the mixtures of sewage sludge and plant materials at 300°C and such temperature caused an increase in the contents of 2- and 3-ring hydrocarbons. During the pyrolysis of organic materials at 600°C, the amount of the following compounds was reduced in biochars: benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, indeno[1,2,3c,d]pyrene, dibenzo[a,h]anthracene, and benzo[g,h,i]perylene. Among γ-radioisotopes of the elements, natural radiogenic isotopes were dominant. <sup>137</sup>Cs was the only artificial radioactive isotope. The pyrolysis of the mixtures of municipal sewage sludge and plant materials revealed that isotope <sup>40</sup>K had the highest radioactive activity. In the case of other analysed nuclides, activities of <sup>212</sup>Pb, <sup>214</sup>Pb, <sup>214</sup>Bi, and <sup>137</sup>Cs were determined after the sample pyrolysis. The extracts from the mixtures of sewage sludge and plant materials were non-toxic to Vibrio fischeri.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:103274