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Abstract

Agricultural washing wastewater (AWW) is an important source of pesticides that, given its intrinsic characteristics, has a high potential to be treated by fungal bioremediation using white rot fungi. In the present study, two AWW treatment strategies were compared: a fluidized-bed reactor (FBR) with T. versicolor pellets and a rotating drum bioreactor (RDB) with T. versicolor immobilized on wood. The RDB effluent showed better results in all studied parameters compared to those of the FBR, including pesticide removal (87%), toxicity, laccase activity, COD, absorbance and microbial communities. Additionally, the fungal assemblage showed that T. versicolor was successfully immobilized in the RDB, which triggered a major shift in the initial community. Afterwards, solid by-products were treated in a fungal biopile-like system reaching high biodegradation rates. Therefore, this study validates the fungal RDB as a viable alternative for AWW treatment, opening up the possibility of a further in-situ and full-scale application.

Original languageEnglish
Article number116595
Number of pages10
JournalJournal of Environmental Management
Volume325
Issue numberPt A
Early online date2 Nov 2022
DOIs
Publication statusPublished - 1 Jan 2023

Keywords

  • Agricultural wastewater
  • Fluidized-bed reactor
  • Fungal bioremediation
  • Pesticides
  • Rotating-drum bioreactor
  • Biodegradation, Environmental
  • Bioreactors
  • Agriculture
  • Waste Water

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