Waste Recycling Solutions

Waste Recycling Solutions

Capabilities

Metallurgical evaluation of legacy tailings dams and active tailings streams for residual metal recovery. Sampling design, characterization, and process development for gold, copper, zinc, REE, and other metals remaining in tailings.

Process development for extraction of rare earth elements, lithium, cobalt, vanadium, manganese, and other critical minerals from mine waste, slag, fly ash, acid
mine drainage precipitates, and electronic waste.

Neutralization, metals precipitation, sulfate reduction, and sludge characterization. Passive and active treatment system design. Conversion of AMD precipitates to saleable by-products. Acid Mine Drainage Treatment — Neutralization, metals precipitation, sulfate reduction, and sludge characterization. Passive and active treatment system design. Conversion of AMD precipitates to saleable by-products.

Evaluation of SO2/air, hydrogen peroxide, Caro’s acid, natural degradation, and other destruction methods. Compliance testing to meet IFC, WAD, and local discharge standards.

Process development for mine-influenced water, process water recycling, and zero-liquid-discharge systems. Membrane, ion exchange, and conventional treatment technologies.

Characterization and beneficiation of smelter slags, furnace dusts, flue residues, and other pyrometallurgical wastes for metal recovery and volume reduction.

mining diagram

Turning liabilities into assets — critical mineral recovery from tailings and waste streams.

RDi develops innovative processes to convert mining waste, industrial by-products, and legacy tailings into high-value products. As regulatory pressure and critical mineral demand increase, waste streams that were once liabilities can become significant revenue sources. We provide the testwork, flowsheet development, and engineering to make it happen.

Applications

  • Legacy mine site remediation and value recovery
  • Active tailings stream optimization and by-product revenue
  • Critical mineral supply chain development from secondary sources
  • Mine closure water treatment and long-term compliance
  • Industrial waste-to-value conversion programs
  • ESG and sustainability-driven tailings reprocessing initiatives

All Services

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