Speakers

Gillian Allen
Senior Engineer – Okane Consultants

Duration

16 min

Predicting water quality risks at mine closure: a study in cold weather climates

At mine closure, waste rock cover systems in the Arctic can employ freezing processes not available in more temperate climates.

An Arctic gold mine was approved to use a thermal cover system to isolate potentially acid generating and metal leaching waste rock as part of reclamation strategies. Okane optimised the cover system design by integrating historic thermal data with robust visualization of thermal, water flow, and gas flow processes in GeoStudio. The approach led to an understanding of the long-term water quality risks and successful approval of an optimised design.

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