Mining

The mining industry has several water-related challenges. It is an intense consumer of water resources in its mining and mineral processing activities. At the same time, it needs to operate without water in pits and underground mines. In addition, it is increasingly necessary to minimize its environmental impacts by increasing standards and legislation, as well as increasing corporate responsibility for sustainable development.

Water Services & Technologies (WST) specializes in water management in the mining industry. The complexities involved in sustainable water supply, lowering mines, geotechnics, assessing environmental impacts, and minimizing soil and groundwater contamination, require experienced professionals with specific knowledge and experience in multiple aspects of the mining industry and their needs involving Water. Water Services Brasil’s engineers, hydrogeologists, geochemists and technicians use a combination of field methods, laboratory analysis and advanced interpretation and forecasting tools, to solve the most varied challenges throughout all phases in the life of an area. mining, from exploration and viability, licensing, development, production, closure and recovery.

  • Initial Hydrogeological Assessment.
  • Registration of springs and water points.
  • Hydrogeochemical assessment for characterization of aquifers.
  • Classic hydrogeochemistry.
  • Isotopes.
  • Design of deep tubular wells.
  • Design of piezometers and monitoring wells.
  • Planning and execution of aquifer tests.
  • Planning and executing well production tests.
  • Planning and executing tests to determine hydraulic conductivity.
  • Slug and Bail tests.
  • Infiltration tests.
  • Water loss tests under pressure.
  • Hydrogeological monitoring.
  • Water Resources Assessment.
  • Surface and underground water balance.
  • Design and Operation of Groundwater Level Lowering Systems.
  • Elaboration of conceptual hydrogeological models.
  • Elaboration of numerical hydrogeological models.
  • VISUAL MODFLOW, FEFLOW.
  • Water level lowering simulations and lowering projects.
  • Preparation of CAPEX and OPEX for the drawdown system over the life of the mine.
  • Assessment of hydrogeological and hydrological impacts.
  • Hydrogeological Monitoring.
  • Elaboration of a report to request a grant to lower the water level.
  • Analysis of geotechnical data with an emphasis on hydrogeology and also geotechnics.
  • Statistical analysis of RQD and fracture frequency.
  • Correlation of Fracture Frequency with Hydraulic Conductivity values.
  • Elaboration of three-dimensional models of RQD, Fracture Frequency and Hydraulic Conductivity.
  • Pre-feasibility and feasibility study for the implementation of the drawdown by directional wells.
  • Design of tubular wells oriented for mine dewatering and supply.
  • Drilling of oriented tubular wells.
  • Acid mine drainage.
  • Migration and destination of contaminated plumes.
  • Geochemical evolution studies.
  • Reactive transport simulation.
  • Feasibility assessment of mineral extraction by in situ leaching.
  • Evaluation of the viability of mineral extraction by leaching using the heap leach technique.
  • Data organization systems.
  • Integration of GIS with database.
  • Data collection tools.
  • Monitoring systems.
  • 3D visualization.
  • Interactive mapping via the web.
  • Isotopic assessment and mapping.
  • Studies on aquifer storage and recovery.
  • Determination of aquifer vulnerability.
  • Determination of sustainable levels of water extraction.
  • Interaction between surface water and groundwater.
  • Delimitation of well protection areas.
  • Hydrological studies to request a grant to capture surface, groundwater and discharge effluents.
  • Optimization of catchment systems.
  • Identification of interference between wells.
  • Elaboration of reports for obtaining a grant for the use of surface and ground water.
  • Flow measurement in water circuit pipes.
  • Design and installation of fluviometric stations and spillways to monitor the water level, volume and flow of water bodies.
  • Assessment of water balance and water availability in industrial units and mines.
  • Critical analysis of water and effluent quality data.
  • Surface and underground water availability studies.
  • Water balance of surface and groundwater.
  • Studies of intense rainfall and maximum flows.
  • Studies of urban drainage and river hydraulics.
  • Interference with bodies of water.
  • 3D mapping and visualization studies.
  • Assessment of natural attenuation.
  • Characterization of contamination plume.
  • Studies on transport and direction of the plume.
  • Risk assessment for human health.
  • Evaluation and characterization of contaminated area.
  • Execution of all phases of the environmental scope: Preliminary, confirmatory, detailed and complementary investigations.
  • Soil and water sampling.
  • Critical analysis of analytical data.
  • Installation of monitoring wells.
  • Human health risk assessment.
  • Mapping the distribution of contaminants.
  • Modeling water flow and transporting contaminants.
  • Project design and remediation execution.
  • Removal of contaminated waste in soils.
  • Post-remediation environmental monitoring.
  • Studies and saline wedge intrusion.
  • Hydrodynamic modeling of ground and surface water.
  • LNAPL / DNAPL migration.
  • Passive remediation assessment.
  • Transport of multicomponent and / or dense compounds.
  • Review during model development.
  • Review of conceptual model.
  • Modeling for technical expertise.
  • Remediation system review.
  • Simulation of alternative scenarios.
  • Preparation and execution of a hydrochemical monitoring plan.
  • Mining and geochemical characterization of solids.
  • Evaluation of the potential for generation / neutralization of acidity in solids (static and kinetic tests).
  • Geostatistical analysis and 3D geological modeling for characterization of mine tailings.
  • Geochemical modeling.
  • Design of water and effluent treatment systems.
  • Risk analysis.
  • Elaboration of mine closure strategies.

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