Friday 6th December 2019

Resource Clips



Infographic: Life cycle of a mine, from planning to rehabilitation

posted with permission of Visual Capitalist | sponsored by Natural Resources Canada | December 2, 2019

 

Mining provides the critical minerals and metals needed for modern society to function. However, if these resources are not properly managed, mining activity can impact local environments and biodiversity.

For this reason, the mines of today prepare for a rehabilitated landscape right from the beginning, in a process known as progressive reclamation.

This infographic comes to us from Natural Resources Canada, a government entity which funded the development of the Canadian Minerals and Metals Plan that supports sustainable mining practices throughout the mining life cycle.

What is progressive mine reclamation?

The process of progressive reclamation, also known as rehabilitation, plans for post-closure activities during the mining process, before moving the first bit of dirt and up to the last truck leaving the mine.

There are three stages to the mining process, each with its own associated activities to plan for mine reclamation.

  • Before mining: Integrated mine planning for closure and reclamation

  • During mining: Planning for climate change impacts and land use

  • After mining: Closure and reclamation

While these are distinct stages, three continuous processes occur throughout the sequence of the mining life cycle:

  • Continuous monitoring

  • Continuous engagement with indigenous peoples, communities and regulators

  • Continuous updates to ensure closure and reclamation plans complement any modifications to the mine plan

Each process is meant to be inclusive, continuous and responsive to the constantly changing environment to ensure there is flexibility and preparedness to adapt as necessary.

1. Before mining

The rehabilitation process starts before mining begins. The permitting process for mine development requires closure and reclamation plans.

2. During mining

An area of the mine can be reclaimed even as other parts of the mine are in operation. Mitigating the impacts of land disturbance during operations is critical to return the land to a viable state.

Climate change impacts can affect operations, and mine operators should account for this in ongoing processes to ensure successful closure and reclamation.

Water treatment facilities process surface and mine waters to ensure compliance, water recycling and watershed management. This is all under the eye of continuous monitoring of the movement of earth and materials.

3. After mining

Once the mining process is complete, mining companies can return the land to a natural state and prepare for post-closure reuse. Mine closure and rehabilitation activities need to take local environmental conditions into account. Evidence of the mining operation must be removed as much as possible.

Part of this process means continued relationships with the people, community and lands affected. Mining companies can re-purpose for other uses, including agriculture, solar panel farms, biofuel production, as well as recreational and tourist use

By incorporating local and traditional knowledge into planning and working with indigenous peoples and communities, modern practices and local knowledge can restore the land in a way that also brings benefits to the local community.

The Canadian Minerals and Metals Plan

Mining operations can generate opportunities for new businesses to create local benefits. Reverting mines to a rehabilitated state will ensure that the landscape can continue to support life for centuries to come.

The Canadian Minerals and Metals Plan supports this vision of progressive mine rehabilitation to ensure Canada remains a responsible mining powerhouse for generations to come.

Posted with permission of Visual Capitalist.

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