The geochemical and mineralogical characterization of mine waste provides essential information to understand the environmental health impacts adequately manage present historical sites. In study, samples from a former ZnPb mining site were subjected different types leaching tests, an in-vitro bioaccessibility test, analysis. characterized by elevated pseudo-total Pb (up 51,800 mg/kg), Zn 60,10...

Overexploitation of groundwater for irrigation and radical changes river morphology in the Bengal basin has posed difficulties to sustainable management this resource. Forty samples were collected from tube wells pre-monsoon postmonsoon seasons 2020, water parameters analyzed. The hydrogeochemical studies, bivariate plots, multivariate techniques used evaluate rock-water interactions, influenci...

The availability of raw mineral resources containing elements included in the Critical Raw Materials (CRMs) list is a growing concern for European Union. Sea mining has been identified as promising secondary source. In particular, brines obtained solar saltworks (bitterns) contain relevant amounts valuable CRMs such Mg(II), B(III), other alkaline/alkaline earth metals (Rb(I), Cs(I), Sr(II)) and...

The Tigris River is the second-longest river in Western Asia and runs through heavily populated areas, especially Baghdad city with nearly 8 million inhabitants. water demand at its highest levels, nevertheless discharge has severely declined last decades; combined fact that wastewater quantities are increasing, treatment plants experiencing a deficiency. Four sites were chosen: Tharthar-Tigris...

Many abandoned mine sites in Cornwall, UK, are characterised by elevated concentrations of arsenic (As), which can cause contamination surrounding soil and water resources. These have important historical value that requires access to be maintained, despite exposure humans toxins may lead health issues including hyperpigmentation keratosis (including skin cancers) liver fibrosis. The tailings a...

Hydrochemistry and isotopes are studied for characterizations of geothermal waters, groundwaters, surface waters in Leizhou Peninsula (LZ) the northern part Hainan Island (HN) across tensile-tectonic Qiongzhou Strait, southern China. Water chemistry results showed that most alkaline HCO3-Na types, while shallow groundwater samples were significantly different with HCO3-Ca, HCO3-Mg, HNO3-Ca type...

The removal of per- and polyfluoroalkyl substances (PFASs) presents a challenge for drinking water providers. Guidelines PFAS concentrations in final are regularly updated to ever-decreasing values, conventional treatment plants not designed remove PFASs. Currently, the most frequently used technique, adsorption granular activated carbon (GAC), is often considered challenging. High-pressure mem...

1 We present a software tool for simulations of flow and multi‐component solute transport in 2 two and three‐dimensional domains in combination with comprehensive intra‐phase and 3 inter‐phase geochemistry. The software uses IPhreeqc as a reaction engine to the multi‐ 4 purpose, multidimensional finite element solver COMSOL Multiphysics® for flow and 5 transport simulations. Here we used COMSOL...

The design of clay plugs used for sealing access galleries to a radioactive waste repository built with concrete structures in a deep clayey formation must take into consideration their chemical evolution over time. Diffusion of an alkaline plume from concrete into bentonite was therefore modeled over a 100,000-year period with the PHREEQC geochemical code in order to determine, as a function o...