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Figure 1
Removal of A. baumannii from slightly acidic terra rossa (pH 5.40) supplemented with 1 wt% of natural zeolitised tuff (NZ) or 1 wt% of Cu-loaded NZ (CuNZ), or 1 or 0.1 wt% of Ag-loaded NZ (AgNZ). Bacterial counts represent averages of triplicate counts ± standard deviation. The detection limit was 1 CFU/g
Figure 2
Removal of A. baumannii from slightly alkaline red palaeosol (pH 8.43) supplemented with 1 wt% of natural zeolitised tuff (NZ) or 1 wt% of Cu-loaded NZ (CuNZ), or 1 or 0.1 wt% of Ag-loaded NZ (AgNZ). Bacterial counts represent averages of triplicate counts ± standard deviation. The detection limit was 1 CFU/g
Native soil heterotrophic bacterial isolates determined with MALDI-TOF MS in fresh red palaeosol before and at the end of treatment with 1 wt% of NZ or CuNZ or AgNZ