The Removal of Uranium onto Nanoscale Zero-Valent Iron Particles in Anoxic Batch Systems

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 (HCO₃⁻, NO₃⁻, and PO₄³⁻), and gravimetry (SO₄²⁻) along with the recorded Eh, pH, and DO.

Chemical species	Concentration (ppm)
Cations
Cu	0.044
Fe	0.021
Mg	12.11
Mo	0.21
U	1.41
Anions
HCO3^−	974.42
NO3^−	18.53
PO4^3−	0.15
SO4^2−	0.51
Solution conditions
DO (ppm)	8.84
Eh (mV)	65
pH	9.29