Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Inhibition of iron oxidizing bacteria involved in the generation of acid mine drainage |
| Abstract | Obligate autotrophic and acidophilic characteristics of iron oxidizing bacteria were exploited to prevent or attenuate the generation of AMD. Inhibition of iron oxidizing bacteria growth was performed by variation of growth medium by increasing pyrite concentration (substrate inhibition), by addition of limestone (inhibition by pH increase) and olive pomace (inhibition by organic compounds). Preliminary pyrite bioleaching tests showed the ability of the available inoculum to oxidize the mineral. Inhibition tests of batch growth were performed according to full factorial design with three factors (pyrite, limestone and olive pomace). Experimental data denoted a strong inhibition in all the operating conditions, except the case when larger pyrite concentrations were used. In particular, limestone is a strong inhibitor and inhibition by olive pomace may be related to the antioxidant properties of polyphenols. Interactions among operating conditions were specifically assessed by analysis of variance. © (2009) Trans Tech Publications. |
| Source | Advanced materials research 71-73, pp. 681–684 |
| Keywords | Acid mine drainageInhibitionIron oxidizing bacteriaLimestoneOlive pomacePyrite |
| Journal | Advanced materials research |
| Editor | Scitec Publications,, Uetikon-Zürich, Svizzera |
| Year | 2009 |
| Type | Articolo in rivista |
| DOI | 10.4028/www.scientific.net/AMR.71-73.681 |
| Authors | Cruz Viggi, C.; Pagnanelli, F.; Sabattini, M.; Toro, L. |
| Text | 378965 2009 10.4028/www.scientific.net/AMR.71 73.681 Scopus 2 s2.0 72449204591 Acid mine drainage Inhibition Iron oxidizing bacteria Limestone Olive pomace Pyrite Inhibition of iron oxidizing bacteria involved in the generation of acid mine drainage Cruz Viggi, C.; Pagnanelli, F.; Sabattini, M.; Toro, L. Universita degli Studi di Roma La Sapienza Obligate autotrophic and acidophilic characteristics of iron oxidizing bacteria were exploited to prevent or attenuate the generation of AMD. Inhibition of iron oxidizing bacteria growth was performed by variation of growth medium by increasing pyrite concentration substrate inhibition , by addition of limestone inhibition by pH increase and olive pomace inhibition by organic compounds . Preliminary pyrite bioleaching tests showed the ability of the available inoculum to oxidize the mineral. Inhibition tests of batch growth were performed according to full factorial design with three factors pyrite, limestone and olive pomace . Experimental data denoted a strong inhibition in all the operating conditions, except the case when larger pyrite concentrations were used. In particular, limestone is a strong inhibitor and inhibition by olive pomace may be related to the antioxidant properties of polyphenols. Interactions among operating conditions were specifically assessed by analysis of variance. © 2009 Trans Tech Publications. 71 73 Published version http //www.scopus.com/record/display.url eid=2 s2.0 72449204591 origin=inward Articolo in rivista Scitec Publications, 1022 6680 Advanced materials research Advanced materials research Adv. mat. res. Advanced materials research Advanced materials research carolina.cruzviggi CRUZ VIGGI CAROLINA |