Removal of pharmaceuticals, polybrominated flame retardants and UV-filters from sludge by the fungus Trametes versicolor in bioslurry reactor

Carlos E. Rodríguez-Rodríguez, Enrique Barón, Pablo Gago-Ferrero, Aleksandra Jelić, Marta Llorca, Marinella Farré, M. Silvia Díaz-Cruz, Ethel Eljarrat, Mira Petrović, Glòria Caminal, Damià Barceló, Teresa Vicent

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    57 Citations (Scopus)

    Abstract

    Conventional wastewater treatments are inefficient in the removal of many organic pollutants. The presence of these contaminants in the final sludge represents a source of environmental pollution due to the increasing use of biosolids in land application. A biotechnological approach which employed the fungus Trametes versicolor in a sludge-bioslurry reactor was assessed in order to remove several groups of emerging pollutants. Biological fungal activity was monitored by means of ergosterol and laccase determinations. Fifteen out of 24 detected pharmaceuticals were removed at efficiencies over 50% after the treatment, including eight completely degraded. Removal ranged between 16-53% and 22-100% for the brominated flame retardants and the UV-filters, respectively. Only two of all the detected compounds remained unchanged after the treatment. Although elimination results are promising, the toxicity of the final sludge increased after the treatment. This finding is contrary to the toxicity results obtained in similar treatments of sludge with T. versicolor in solid-phase. © 2012 Elsevier B.V.
    Original languageEnglish
    Pages (from-to)235-243
    JournalJournal of Hazardous Materials
    Volume233-234
    DOIs
    Publication statusPublished - 30 Sep 2012

    Keywords

    • Bioslurry
    • Degradation
    • Emerging pollutants
    • Sewage sludge
    • Trametes versicolor

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