Skip to main content

Advertisement

Table 1 Linear combination fitting analysis of XANES spectra of sludges collected from the SBRs (aerobic), sludges after anaerobic batch tests (anaerobic) and from the short term wastewater experiment

From: Transformation of PVP coated silver nanoparticles in a simulated wastewater treatment process and the effect on microbial communities

Sample Ag2S Ag2S NP + Ag-GSH Ag(0) Ag-acetate Ag-thiosulfate Residual
Aerobic sludges       
Control   40 (5) 20 (3) 19 (3) 23 (4) 0.350
Ag+ 8 (2) 72 (8) 6 (0.9) 14 (0.9)   0.029
AgNP   85 (4) 15 (4)    0.022
Anaerobic sludges       
Control 39 (9) 24 (7)   27 (4) 11 (6) 0.549
Ag+ 30 (1) 56 (2)   13 (0.7)   0.015
AgNP 13 (2) 78 (6)   8 (0.8)   0.030
Wastewater Experiment       
4 min    100 (0.2)    0.776
24 min    100 (0.2)    0.863
210 min    100 (0.2)    0.927
  1. The proportion of species are presented as percentages with the estimated standard deviation (SD) in parentheses. For the Ag2S NP + Ag-GSH column, the SD is the sum of the individual SD’s from each species. The control sludge was collected from the SBR that was not spiked with Ag.