Geomechanics.io

  • Free Tools
Sign UpLog In
Built byBoxcut Studio

Geomechanics.io

Geomechanics, Streamlined.

© 2026 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    Projects
    Research
    Sustainability

    Algae breakthrough for rare earths: process design and recovery notes for miners

    July 28, 2026|

    Reviewed by Joe Ashwell

    Algae breakthrough for rare earths: process design and recovery notes for miners

    First reported on MINING.com

    30 Second Briefing

    Algae grown in a 50‑gallon recirculating trough at Southern Illinois University more than doubled dissolved rare earth element concentrations from finely ground ore, offering a biological alternative to sulfuric acid-based leaching. Microbiologist Scott Hamilton-Brehm’s team then recovered the metals via a patented organic breakdown process, with residual algal biomass suitable for agricultural bio-stimulants or biodiesel. The approach is being tested on additional algae species and could be applied to coal ash, mine waste and e‑scrap, potentially upgrading low-grade or secondary US sources such as Hicks Dome in Illinois.

    Technical Brief

    • Miniature “river system” used a 50‑gallon trough, circulating pumps and LED lighting to simulate flow and sunlight.
    • Finely ground rare earth-bearing rock from Southern Illinois University geologists was added as the solid feedstock.
    • Mechanistic behaviour of metal uptake and concentration by the microalgae remains unknown, flagged as a key research gap.
    • Recovery of rare earths relied on a patented post-bioreactor process that chemically breaks down algal organic matter.
    • Residual algal biomass is being evaluated for agricultural bio-stimulants and biodiesel, improving overall process mass balance.
    • Researchers are screening additional algae species to compare concentration factors and optimise species selection for different feedstocks.
    • Hicks Dome in Hardin County, Illinois, is cited as a crypto-volcanic rare earth target with mineral-rich intrusions and breccia-hosted mineralisation.
    • Potential application to coal ash, mine waste and e‑scrap points to integration with waste remediation circuits rather than primary ore plants alone.

    Our Take

    With China still accounting for about 60% of rare earth mining and 90% of processing in our database figures, any algae-based concentration step trialled at Hicks Dome in Illinois would be strategically attractive to US defence- and EV-linked supply chains looking to localise early-stage upgrading rather than full separation.

    The algae-driven twofold concentration gain, if scalable to coal or copper tailings mentioned in the article facts, could make low-grade US critical minerals residues more bankable, similar to how other critical minerals stories in our coverage are testing niche processing routes to unlock previously uneconomic feedstocks.

    Rare earths appear across multiple critical-minerals pieces in our database, including coverage of MP Materials and USA Rare Earth, so a successful SIU/NSF-backed bio-concentration method would likely feed into those operators’ interest in lower-impact beneficiation options for US-based projects.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

    Related Articles

    Trump’s Venezuela gold push: due‑diligence bottlenecks explained for mine teams
    Mining
    about 12 hours ago

    Trump’s Venezuela gold push: due‑diligence bottlenecks explained for mine teams

    Hundreds of millions of dollars’ worth of Venezuelan gold flown into the US under a Trafigura–Minerven deal backed by President Trump and Interior Secretary Doug Burgum is sitting idle because refiners refuse to process it without proof it meets responsible-sourcing standards. The gold, including about $100 million shipped within hours of the March signing, comes from guarded Minerven underground mines where small-scale producers reportedly pay protection money to the Tren de Guayana gang. Similar deals by Heeney Capital and Mercuria, targeting up to $2.2 billion a year in Venezuelan mineral exports, face the same due‑diligence bottleneck.

    Mining Forum: Friedland’s I-ROX comminution push – energy and recovery lens for engineers
    Mining
    about 12 hours ago

    Mining Forum: Friedland’s I-ROX comminution push – energy and recovery lens for engineers

    Robert Friedland is pushing to replace conventional SAG and ball mills with I-Pulse’s I-ROX pulsed-power comminution, which stores electricity then releases nanosecond–microsecond bursts to fracture ore internally along mineral boundaries, with projected energy cuts of up to 80% and about 5% higher metal recoveries. A 2,500 m² I-ROX research centre in Toulouse is testing Kamoa-Kakula copper ore and tailings, while I-Pulse has also secured a US$250 million CHIPS Act award for silicon-carbide semiconductors. The same platform underlies G-Pulse drilling, claimed to triple penetration rates and extend bit life sixfold, to be trialled on the Millungera Basin geothermal project in Queensland.

    Lake Resources’ Kachi lithium project: DIA approval and FEED lens for engineers
    Mining
    about 12 hours ago

    Lake Resources’ Kachi lithium project: DIA approval and FEED lens for engineers

    Lake Resources has secured the key Environmental Impact Declaration for its Kachi lithium brine project in Catamarca, Argentina, clearing the project to enter front-end engineering design for a 25,000 tpa lithium carbonate equivalent facility using Lilac Solutions’ direct lithium extraction process and prior engineering work with Hatch. The DIA confirms compliance with provincial environmental and social standards, imposes a 200 m surficial exclusion zone around the lagoon shoreline, and sets pre‑operations obligations. Lake has also committed $1 million to Catamarca’s Mining Royalty Trust Fund, to be paid between October 2026 and June 2027 for local infrastructure.

    Related Industries & Products

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.

    AllGeotechnicalInfrastructureHazardsEnvironmental