TY - GEN A1 - Włodarczyk-Makuła, Maria A2 - Kuczyński, Tadeusz - red. PB - Zielona Góra: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego N2 - The aim of the investigations was to estimate the half-life of selected PAHs in sewage sludge. Five hydrocarbons selected from 16 PAHs- EPA were chosen. In this study, the quantity changes in the concentration 3- and 4-ring of PAHs in sewage sludges were investigated. N2 - Sewage sludges were stored under aerobic conditions for 12 weeks. At the same time the sewage sludges with the added sodium azide, in order to deactivate the microorganisms (abiotic samples), were also stored. Gas chromatography-mass spectrometry was used to qualify and quantify PAHs in 2-week intervals. N2 - Sewage sludges were taken from a municipal wastewater treatment plant. Under experimental conditions the half-lives of individual compounds were diversed. In biotic samples half life of hydrocarbons was in the range of 19 to 368 days. Half-life of PAHs in abiotic sewage sludges was in the range of 31 to 2961 days. The most persistent were phenanthrene. L1 - http://zbc.uz.zgora.pl/repozytorium/Content/47352/8_wlodarczyk_stability.pdf L2 - http://zbc.uz.zgora.pl/repozytorium/Content/47352 KW - fluoren KW - fenantren KW - antracen KW - fluoranten KW - piren KW - czas półrozpadu KW - osady ściekowe KW - warunki tlenowe KW - azydek sodu KW - fluorene KW - phenanthrene KW - anthracene KW - fluoranthene KW - pyrene KW - half-live KW - sewage sludge KW - aerobic conditions KW - sodium azide T1 - Stability of selected PAHs in sewage sludge = Stabilność wybranych WWA w osadach ściekowych UR - http://zbc.uz.zgora.pl/repozytorium/dlibra/docmetadata?id=47352 ER -