Best Practices for Mine Waste Characterization and Management

Instructor – Patrick Williamson

Best Practices for Mine Waste Characterization and Management

Professional Course in Mine Waste Geochemistry and Hydrogeology

This course will be conducted in Spanish

The objective of the course is to provide a general understanding of industry best practices for the geochemical characterisation and management of mine wastes. Participants will learn: mining and chemical processes that cause metals leaching (ML) and acid rock drainage (ARD), impacts to water quality from mine waste, a range of procedures for static and kinetic tests, design and implementation of mine waste sampling programmes, procedures for sampling assurance/quality control; data analysis and interpretation; and mine waste management.


One day, 8 hours, Thursday 15th November


Individual: USD $425
Group of Three: USD $1.000


Hotel San Fernando Plaza

Patrick Williamson PG, QP is a specialist in environmental geochemistry and hydrogeology of mining operations. His area of practice is environmental geochemistry and hydrogeology of mining projects in the Americas from the advanced exploration stage through mine closure. Patrick is a Professional Geologist and a Qualified Person for environmental characterisation of mine sites in support of NI 43-101 technical reports for the Toronto Stock Market. He has 31 years of experience in geochemical and hydrogeological studies and is an active member of several professional organisations related to environmental geochemistry, including the environmental division of the Mining, Metallurgical and Exploration Society (SME) and the Acid Drainage Technology Initiative (ADTI).

Course Outline

  • Introduction to environmental management
    • Components of an Environmental Management System (EMS)
    • Goals of an EMS
  • Basic concepts of metals leaching and acid rock drainage
    • Chemistry
    • Geology/mineralogy
    • Ore deposit genetic models
    • Mining processes
    • The “tool box” approach
  • Sources and impacts of ML/ARD
    • Mineralogy of ML/ARD
    • Use of a conceptual geochemical model
    • Sulphide oxidation
    • Site specific factors
  • Strategies for the characterisation of ML/ARD
    • Sampling plan
    • Static analysis
    • Kinetic analysis
    • Interpretation of data
    • Quality Control/Assurance
  • Colombian regulations, International Criteria and Best Practices
  • Water monitoring in mines
  • Mining waste management
  • Mine closure
  • Mitigation of environmental impacts on mining operations
    • Active methods
    • Passive methods
  • Case studies – San Antón de las Minas, Kori Kollo, Zortman Lundusky

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