Knowledge / Mining & Geoscience / Environmental & Hydrogeology
Environmental & Hydrogeology
Environmental and Hydrogeology: How sulphide oxidation generates acid and metals, what neutralises it, and why it can start decades after mining; Acid-base accounting, NAG tests, kinetic columns, and the gap between a laboratory and a dump; Porosity, permeability, hydraul.
All 7 articles are published. Each one states what it needs, what can be concluded with it, and what cannot — and every one stays marked DRAFT until it has had independent geological review.
- 1. Acid rock drainage publishedHow sulphide oxidation generates acid and metals, what neutralises it, and why it can start decades after mining.
- 2. Predicting drainage chemistry publishedAcid-base accounting, NAG tests, kinetic columns, and the gap between a laboratory and a dump.
- 3. Aquifers and groundwater flow publishedPorosity, permeability, hydraulic head and Darcy's law — the minimum to read a hydrogeological report.
- 4. Mine dewatering publishedInflows, cones of depression, pumping and depressurisation, and their effect on neighbours.
- 5. The mine water balance publishedInputs, outputs and storage, why a site is usually short of water or drowning in it, and how uncertainty is carried.
- 6. Tailings storage facility safety publishedUpstream, downstream and centreline dams, failure modes, and what the Global Industry Standard requires.
- 7. Closure and rehabilitation publishedDesigning for closure, landforms, covers, water treatment in perpetuity, and financial assurance.