Geochemistry

Water Services and Technologies has a multidisciplinary team, made up of experienced professionals specialized in geochemical projects for mining. We have developed studies for several commodities. We work in the elaboration of the following studies/projects:

  • Hydrogeochemical and hydrogeological studies;
  • Diagnosis of acid rock drainage and metal leaching;
  • Definition of tests for characterization and testing of tailings and sterile;
  • Geochemical modeling;
  • Preparation of hydrochemical monitoring plans.

Project Experience

  • Conceptual and numerical hydrogeological modeling of piles, dams and pits to support geochemical studies.
  • Inspection in mining areas to identify sources of contaminants.
  • Consultancy on sample selection and methods for waste and tailings characterization: Lithogeochemistry, mineralogy, static and kinetic tests.
  • Advanced statistical analysis of lithogeochemical, mineralogical and hydrogeochemical data using R.
  • Analysis of water-mineral reactions and other reactions using PHREEPLOT.
  • Self-cleaning studies in receptor bodies.
  • Calibração de parâmetros termodinâmicos e cinéticos no PHREEQC para simulação de cenários futuros de drenagem de pilhas e barragens.
  • Predictive geochemical modeling in scenarios of installation and expansion of structures, decommissioning and post-closure of dams (PHREEQC).
  • 1D / 3D reactive transport modeling (+/- thermodynamics and kinetics).

Our Team

Our team of experts in geochemistry has a multidisciplinary team, composed of specialized professionals with extensive experience in geochemistry projects for mining. We have developed several geochemical projects for different clients in different commodities.

Rafael Albuquerque, MSc.​

Rafael is a geologist graduated from Acadia University, with a master’s degree in hydrogeochemistry from Simon Fraser University, both in Canada. He has experience in hydrogeochemistry and hydrogeology projects, mine drainage, effluent self-purification studies, hydrogeology and geochemistry of regional aquifers, natural and anthropic occurrence of metals and other solutes in groundwater, the use of hydrogeochemical and isotopic parameters in hydrogeological studies, and numerical flow modeling and geochemistry.

Carolina Abreu, DSc.​

Carolina has a degree in Sanitary and Environmental Engineering (2006). She has a Master’s (2009) and Doctorate (2013) from the Federal University of Minas Gerais (UFMG) in Metallurgical and Mining Engineering. She has experience in Environmental Geochemistry, Aqueous Mineral Processing and Hydrometallurgy. She works in the conceptual and numerical development of hydrogeochemical models, involving mass and energy transport, assessment of mine drainage and effluents contaminated by inorganic chemical species.

Lara Lange, MSc.​

Lara holds a degree in Geology from the Federal University of Paraná (2015), with a Master’s degree (2018) in exploratory geology from the same university with a university extension at the California Institute of Technology (Caltech). She has expertise in geochemical chemostratigraphy, technostratigraphy and hydrogeology. She has experience in performing and interpreting laboratory analyzes such as XRD, XRF, stable isotopes, scanning electron microscope (SEM-EDS) and chemostratigraphic survey and geological mapping.

Layane Silva, MSc.​

Layane holds a degree in Chemical Engineering from the Federal University of Minas Gerais (2016) and a master’s degree in Agronomy from the Federal University of Lavras (2020). She has experience in Environmental Geochemistry, Water Quality, Bioengineering and Mineral Processing. At Water Services & Technologies, Layane works in descriptive and exploratory statistical analysis of geochemical data and hydrogeochemical modeling (conceptual and numerical) of tailings and waste dumps, pits and dams.