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Hydrogeological model

Context

Development of a conceptual hydrogeological model of a mine in Moatize, a city in the province of Tete in Mozambique.

Methodology

Para o desenvolvimento do modelo hidrogeológico conceitual foi providenciada a compilação dos dados geológicos e hidrogeológicos existentes, a análise e interpretação de informações dos instrumentos de monitoramento instalados no local (piezômetros, INA’s e poços tubulares), a análise de ensaios geofísicos (eletrorresistividade), bem como a análise de ensaios para a definição das características hidrodinâmicas dos aquíferos (bail test, slug test), testes de bombeamento e testes de aquíferos), dentre outras providências.

Results

This work allowed the characterization of the underground water dynamics and its geometry as well as the configuration of the aquifer units, recharge and discharge zones, the vulnerability of these hydrogeological systems to possible contaminants, and the water availability inherent to the project in question and some adjacent areas.

Status

Complete

Year

2020

Category

Water resources

Outros Cases

Conceptual and executive level closure plan

Mine operations with the need to plan structured actions, in line with the best international practices, in order to guarantee the physical and chemical stability of the structures, enabling the future use and socio-environmental sustainability of the enterprise in the decommissioning and post-decommissioning phases.
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EMERGENCY ASSESSMENT AND RECOVERY PLAN

Development of a preventive plan focused on creating long-term recovery strategies, with the objective of structuring actions for a hypothetical breach event. The objective was to assess the social, environmental, and economic impacts that may arise from failure in tailings disposal structures, considering the extent of local damage and its medium- and long-term repercussions, and to engage stakeholders in defining and implementing recovery actions.
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Social Mobilization for PAEBM Actions

Development of strategies for social mobilization and engagement of local communities to promote wide dissemination of information about the actions of the PAEBM – Emergency Action Plan for Mining Dams, enabling popular participation in the safety agenda and spreading a preventive culture.
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