ISR Uranium and Copper
The In Situ Recovery (ISR) method can be used to mine low-grade uranium deposits when geological conditions are suitable. A small portion of non-potable groundwater is extracted to which around 2% of sulfuric acid is added. The acidified water is equivalent to 1.5pH. The acidified water is injected into wells to reach the aquifer hosting the uranium deposit only. The acidified water dissolves the uranium and moves it towards the production well. The solution carrying the uranium is then pumped towards the surface for processing. Uranium is then extracted from the solution to produce natural saleable uranium concentrate. With ISR, the target metal is recovered from the deposit without excavating the host rock.
Our experience with ISR operators and the services we provide includes:
- Feasibility studies
- Geology and hydrogeology support for preparation of mining permits (State) and applications for Radioactive Materials Licenses (Nuclear Regulatory Commission)
- Aquifer characterization and assessments
- Aquifer exemption applications and regulatory support
- Fate and transport modeling (analytical and numerical) related to wellfield development and restoration demonstrations
- Geochemical evaluations and modeling (with assistance from consulting associates)
- Hydrogeologic support for NI-43-101 process (PEA/PFS)
- Expert testimony
- Wastewater management via Class I disposal wells
