Phytoremediation for improving the quality of effluents from a conventional tannery wastewater treatment plant (Articolo in rivista)

Type
Label
  • Phytoremediation for improving the quality of effluents from a conventional tannery wastewater treatment plant (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s13762-014-0522-2 (literal)
Alternative label
  • S. Di Gregorio, L. Giorgetti, M. Ruffini Castiglione, L. Mariotti, R. Lorenzi (2014)
    Phytoremediation for improving the quality of effluents from a conventional tannery wastewater treatment plant
    in International journal of environmental science and technology (Tehran, Online)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • S. Di Gregorio, L. Giorgetti, M. Ruffini Castiglione, L. Mariotti, R. Lorenzi (literal)
Rivista
Note
  • Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • S. Di Gregorio: Department of Biology, University of Pisa, Via Luca Ghini 13, 56126, Pisa, Italy L. Giorgetti: National Research Council (CNR), Institute of Biology and Agricultural Biotechnology (IBBA), Research Unit of Pisa, Via Moruzzi 1, 56124, Pisa, Italy M. Ruffini Castiglione, L. Mariotti, R. Lorenzi: Department of Biology, University of Pisa, Via Luca Ghini 13, 56126, Pisa, Italy (literal)
Titolo
  • Phytoremediation for improving the quality of effluents from a conventional tannery wastewater treatment plant (literal)
Abstract
  • In the present study, the quality of effluents from a conventional wastewater treatment plant in Italy has been analyzed. Residual level of contamination by 4-n-nonylphenol, mono- and di-ethoxylated nonylphenols has been recorded in the effluents that resulted to be also phytotoxic and genotoxic. The possibility of exploiting phytoremediation as a sustainable tertiary treatment for the depletion of the priority pollutants and for the reduction in the residual toxicity has been verified at mesocosm scale. The phyto-based treatment has been performed by the exploitation of Phragmites australis by either a bacterial-assisted and not assisted approach. In relation to the bacterial-assisted approach, two new bacterial strains, capable of using the nonylphenols as a sole carbon source, have been isolated. One was identified as a plant growth-promoting rhizobacteria (PGPR) belonging to the Stenotrophomonas species, and the second one was classified as a Sphingobium species strain. Both strains were independently bioaugmented in the P. australis rhizosphere. In relation to the not assisted approach, the phyto-based process determined 87, 70 and 87 % for 4-n-nonylphenol, mono-ethoxylated nonylphenols and di-ethoxylated nonylphenols, respectively. The toxicological assessment of the process evidenced the complete depletion of either the phytotoxicity or the genotoxicity of the treated effluents. With reference to the bacterial-assisted approach, the PGPR Stenotrophomonas species strain resulted to be capable of significantly increasing the efficiency of the phyto-based process in nonylphenol depletion up to 88 % for the 4-n-nonylphenol, 84 % for the mono-ethoxylated nonylphenol and 71 % for the di-ethoxylated nonylphenol. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it