Mycoremediation of PAH-contaminated soil
2002
Bhatt, M. | Cajthaml, T. | Sasek, V. (Akademie Ved, Prague (Czech Republic). Mikrobiologicky Ustav)
Strains of Irpex lacteus and Pleurotus ostreatus were selected for degradation of 7 three- and four-ring unsubstituted aromatic hydrocarbons (PAH) in two contaminated industrial soils. The degradation of PAH was determined after 14 weeks of incubation. Respective data for removal of PAH in the two industrial soils by I. lacteus were as follows: fluorene (Fl, 41 and 67 %), phenanthrene (Ph, 20 and 56 %), anthracene (An, 29 and 49 %), fluoranthene (Fa, 29 and 57 %), pyrene (Py, 24 and 42 %), chrysene (Ch, 16 and 32 %), benzo[a]anthracene (Ba, 13 and 20 %). In the same two industrial soils, P. ostreatus degraded the PAH with respective removal figures of Fl (26 and 35 %], Ph (0 and 20 %), An (19 and 53 %), Fa (29 and 31 %), Py (22 and 42 %), Ch (0 and 42 %), Ba (0 and 13 %). Fungus-treated soil samples indicated a decrease in luminescent bacteria (Vibrio fischerii) number and an increase in germinated mustard (Brassica alba) seeds in comparison with non-treated contaminated soils.
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