• Home
  • Search Results
  • Re-inoculation strategies enhance the degradation of emerging pollutants in fungal bioaugmentation of sewage sludge.

Re-inoculation strategies enhance the degradation of emerging pollutants in fungal bioaugmentation of sewage sludge.

Bioresource technology (2014-03-04)
Carlos E Rodríguez-Rodríguez, Daniel Lucas, Enrique Barón, Pablo Gago-Ferrero, Daniel Molins-Delgado, Sara Rodríguez-Mozaz, Ethel Eljarrat, M Silvia Díaz-Cruz, Damià Barceló, Glòria Caminal, Teresa Vicent
ABSTRACT

The use of Trametes versicolor has been partially successful in the removal of some pharmaceuticals from sewage sludge in laboratory-scale biopile systems. The application of two strategies for the re-inoculation of biomass was assessed during the fungal bioaugmentation of non-sterile sludge (42-d treatment) as an approach to improve the elimination of pharmaceuticals and other groups of emerging pollutants. Globally, the re-inoculation of biopiles with blended mycelium exerted a major effect on the removal of pharmaceuticals (86%), brominated-flame-retardants (81%) and UV filters (80%) with respect to the re-inoculation with additional lignocellulosic substrate colonized by the fungus (69-67-22%). The performance was better than that of the analogous non-re-inoculated systems that were assayed previously for the removal of pharmaceuticals. The results demonstrate the ability of T. versicolor to remove a wide spectrum of emerging micropollutants under non-sterile conditions, while re-inoculation appears to be a useful step to improve the fungal treatment of sludge.

MATERIALS
Product Number
Brand
Product Description

Supelco
Octocrylene, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
Nitrogen, ≥99.998%
Sigma-Aldrich
4-Hydroxybenzophenone, 98%
Sigma-Aldrich
2,4-Dihydroxybenzophenone, 99%
Sigma-Aldrich
2-Ethylhexyl 2-cyano-3,3-diphenylacrylate, 97%
Sigma-Aldrich
3-(4-Methylbenzylidene)camphor, ≥98.0% (GC)
Supelco
Octocrylene, analytical standard
Sigma-Aldrich
4-Aminobenzoic acid sodium salt, ≥99%, powder
Supelco
3-(4-Methylbenzylidene)camphor, certified reference material, TraceCERT®
Sigma-Aldrich
Benzophenone-d10, 99 atom % D
USP
Octocrylene, United States Pharmacopeia (USP) Reference Standard