10. Reactive Transport in Mining and Post-mining Applications

Harald Kalka, Julia Krause, Horst Märten, Micha Zauner
Minimum 10, maximum 25 delegates
Regular € 290/310, Students € 200/220

(a) The workshop will demonstrate state-of-the-art approaches to understand and simulate contaminant transport in groundwater in the course of mining operations in general. In particular, in view of current trends to apply in-situ recovery (ISR) to various technology metals and deposit types, this application-oriented workshop will demonstrate both feasibility and requirements by real-world computer simulations comprising recovery scenarios and remediation.

(b) The target audience includes (1) chemists/chemical engineers/environmental engineers involved in relevant mining projects (development/operation/remediation), (2) regulators, (3) consultants (4) scientists/students working in applied mining science and technology.

(c) The workshop will be structured as follows:

  1. Introductory lecture
    1. Mine water in the environment: main application cases and environmental compliance
    2. Basic principles of hydro(geo-)chemistry (thermodynamics, kinetics) for applied purposes
  2. Main rock-water interactions in mining
    1. Acid-base and redox processes, ion-exchange on clays, primary and secondary phases
    2. Tutorials/computer exercises for real-world scenarios
  3. Reactive-transport applications
    1. Hydrological framework (in-situ recovery, groundwater transport)
    2. Computer exercise 1: In-situ recovery of technology metals – from column recovery tests to field applications
    3. Computer exercise 2: Natural Attenuation (NA)
    4. Computer exercise 3: Active treatment (enhanced NA) – combining reactive transport with remediation measures
  4. Environmental compliance in mining by precautional measures and efficient remediation (green mining): Industrial applications (demonstrations)

(d) The expected outcome of the workshop includes:
Understanding and exercising reactive transport in real-world mining applications. Demonstrating real requirements to be met in developing and operating ISR mines. Exercising precautional measures to minimize environmental impacts. Understanding basics and measures for remediating contaminated groundwater including natural attenuation and the efficiency of active treatment options (in-situ/pump-and-treat). Exercising real-case applications by software tutorials.

(e) The participants will receive the complete documents of presentations and tutorials (PowerPoint). UIT’s thermodynamic/(1D) reactive-transport software tools will be provided, together with the input files for all applications considered in the tutorials.