Table 2: Concentrations of notable chemical species present in the mine water, analysed by ICP-MS (U), ICP-AES (Fe, Mg, Cu, and Mo), volumetric titration ( , , and ), gravimetry ( ), and solvent extraction (organics) along with the recorded Eh, pH, and DO prior to nanoparticle addition.

Chemical speciesConcentration (mg L−1)

Metals
 Cu0.023
 Fe0.018
 Mg15.02
 Mo0.045
 U0.484
Ligands
1041.10
30.80
0.35
0.25
 Organics12.72
Solution conditions
 DO (mg L−1)13.4
 Eh (mV)215
 pH8.36