Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Enhancement of Chromium (VI) Reduction in Microcosms Amended with Lactate or Yeast Extract: A Laboratory-Scale Study |
| Abstract | A laboratory-scale study was carried out to evaluate the groundwater bioremediation potential of hexavalent chromium (Cr(VI)), taking into account the chromate pollution of an industrial site located in Southern Italy (Apulia Region). The reduction of Cr(VI) was studied on laboratory microcosms, set up in different experimental conditions, namely: ABIO (soil and water sterilized), BIO (soil and water not sterilized), LATT (with the addition of lactate), and YE (with the addition of yeast extract). Control test lines, set up by using sterilized matrices and amendments, were employed to assess the occurrence of the pollutant reduction via chemical processes. By combining molecular (microbial abundance, specific chromate reductase genes (ChR) and the Shewanella oinedensis bacterial strain) with chemical analyses of chromium (VI and III) in the matrices (water and soil) of each microcosm, it was possible to investigate the response of microbial populations to different experimental conditions, and therefore, to assess their bioremediation capability in promoting Cr(VI) reduction. The overall results achieved within this work evidenced the key role of amendments (lactate and yeast extract) in enhancing the biological reduction of hexavalent chromium in the contaminated aqueous phase of laboratory microcosms. The highest value of Cr(VI) removal (99.47%) was obtained in the YE amended microcosms at seven days. |
| Source | International journal of environmental research and public health (Print) 17 (3), pp. 704 |
| Keywords | hexavalent chromiumyeast extractlactatemicrocosms |
| Journal | International journal of environmental research and public health (Print) |
| Editor | MDPI,, Basel, |
| Year | 2020 |
| Type | Articolo in rivista |
| DOI | 10.3390/ijerph17030704 |
| Authors | Ancona, Valeria; Campanale, Claudia; Tumolo, Marina; De Paola, Domenico; Ardito, Claudio; Volpe, Angela; Uricchio, Vito Felice |
| Text | 422730 2020 10.3390/ijerph17030704 ISI Web of Science WOS 000517783300029 hexavalent chromium yeast extract lactate microcosms Enhancement of Chromium VI Reduction in Microcosms Amended with Lactate or Yeast Extract A Laboratory Scale Study Ancona, Valeria; Campanale, Claudia; Tumolo, Marina; De Paola, Domenico; Ardito, Claudio; Volpe, Angela; Uricchio, Vito Felice CNR; CNR A laboratory scale study was carried out to evaluate the groundwater bioremediation potential of hexavalent chromium Cr VI , taking into account the chromate pollution of an industrial site located in Southern Italy Apulia Region . The reduction of Cr VI was studied on laboratory microcosms, set up in different experimental conditions, namely ABIO soil and water sterilized , BIO soil and water not sterilized , LATT with the addition of lactate , and YE with the addition of yeast extract . Control test lines, set up by using sterilized matrices and amendments, were employed to assess the occurrence of the pollutant reduction via chemical processes. By combining molecular microbial abundance, specific chromate reductase genes ChR and the Shewanella oinedensis bacterial strain with chemical analyses of chromium VI and III in the matrices water and soil of each microcosm, it was possible to investigate the response of microbial populations to different experimental conditions, and therefore, to assess their bioremediation capability in promoting Cr VI reduction. The overall results achieved within this work evidenced the key role of amendments lactate and yeast extract in enhancing the biological reduction of hexavalent chromium in the contaminated aqueous phase of laboratory microcosms. The highest value of Cr VI removal 99.47% was obtained in the YE amended microcosms at seven days. 17 Published version Articolo in rivista MDPI, 1661 7827 International journal of environmental research and public health Print International journal of environmental research and public health Print Int. j. environ. res. public health Print International journal of environmental research and public health. Print claudiacampanale CAMPANALE CLAUDIA TUMOLO MARINA angela.volpe VOLPE ANGELA vitofelice.uricchio URICCHIO VITO FELICE valeria.ancona ANCONA VALERIA domenico.depaola DE PAOLA DOMENICO |