Ability of filamentous fungi to degrade four emergent water priority pollutants
2016
AbstractThis study was conducted to investigate biodegradation of four emergent water priority pollutants, di(2-ethylhexyl)phthalate (DEHP), fluoranthene, aminomethylphosphonic acid (AMPA), and estrone (EST), by filamentous fungi (Fusarium oxysporum, Geotrichum galactomyces, Trichoderma harzianum, and Fusarium solani). These pollutants are commonly found at high occurrence in French wastewater treatment plants. In acute toxicity tests, a weak sensitivity of fungal growth to the pollutants was observed with F. oxysporum showing the greatest growth inhibition (19.3%) in the presence of DEHP after four days of incubation. In addition, degradation experiments were conducted in mineral medium for each pollutant incubated with each filamentous fungus for 10 d. With the exception of EST, which was not degraded by any fungal isolate tested, the fungi degraded these emergent water priority pollutants, with F. solani and T. harzianum degrading 100% of DEHP and 69% of AMPA, respectively.
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