Minerals may undergo recrystallization reactions in low temperature (< 100° C) aqueous
systems, during which they exchange isotopes and trace elements with the dissolved …

Surface reactions on calcite play an important role in geochemical and environmental
systems, as well as many areas of industry. In this review, we present investigations of …

The colloidal transport of trace (Fe, Al, Ba, Pb, Sr, U) and ultra-trace (226 Ra) elements was
studied in a mining environment. An original approach combining 0.45 μm filtered water …

In the western US, produced water from oil and gas wells discharged to surface water
augments downstream supplies used for irrigation and livestock watering. Here we …

Sparingly soluble sulfate minerals, particularly barite (BaSO4), present an ideal system to
understand mineral–water interfacial reactions. The model system barite has been used to …

Thermodynamic properties of mixing in the ternary (Ba, Sr, Ra) SO 4 solid solution are
determined using first principles based total energy calculations and Monte Carlo …

Solid solution formation between RaSO 4 and BaSO 4 has long been recognized as a
process which potentially controls the Ra concentration in the environment. Here, we have …

Hydrocarbon spills that reach the subsurface can modify aquifer geochemical conditions.
Biogeochemical zones typically form proximal to the source zone that include iron (Fe (III)) …

Aqueous–solid solution (AQ-SS) processes have garnered increasing attention from
geochemists and environmental engineers because they play major roles in the fate and …

The mill tailings from uranium mines constitute very low-level, long-lived, radioactive
process waste. Their long-term management therefore requires a good understanding of the …