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BIOcementation with GEotextiles for Mine-tailing Stabilization (BIOGEMS)

Project description

A solution for managing the environmental impact of mine tailings

Large-scale mining generates vast amounts of waste known as tailings, which contain dangerous chemical residues and crushed rock. These can damage local environments and endanger communities if they are not handled with extreme care. Supported by the Marie Skłodowska-Curie Actions programme, the BIOGEMS project aims to develop a solution using natural processes instead of CO2-intensive stabilisation methods. It will introduce biomineralisation-based biocements, combined with biodegradable fibre-based biogeotextiles, to strengthen tailings, immobilise contaminants, and support ecological restoration. This technique will be tested in Zambia, where field trials will be carried out to evaluate their effectiveness, cost feasibility, and environmental benefits, with potential applications worldwide.

Objective

Concerns about the geohazards and environmental and health impacts of contaminated mine tailings (soil and rock fragments remaining after mineral extraction) drive the urgent need for their safe storage and the sustainable restoration of tailings storage sites after mining operations cease. With a projected 35% increase in size of active tailings storage facilities, stretching them beyond their original design, failures are expected to increase, exacerbated by climate change.

To address these pressing needs, BIOGEMS aims to develop an innovative, efficient, and bio-compatible technique for mine tailings (MT) management and restoration, addressing limitations of current practices while integrating their strengths. BIOGEMS replaces CO2-emitting Portland Cement and lime with biocements produced via the natural process of biomineralisation. These biocements will stabilise MT and encapsulate/immobilise contaminants, reducing their bioavailability to enable ecological restoration. This biocementation process will be combined with biodegradable, natural fibre-based geosynthetics (biogeotextiles), which can further reinforce MT while acting as bacterial carriers for spatially targeted, durable biocementation treatment. A key focus is harnessing native microorganisms to ensure ecosystem compatibility.

Laboratory and field trials will evaluate the ability of the proposed systems to induce uniform biocementation, immobilise contaminants within mineral matrices, to support post-closure tailings restoration and reclamation.

Following laboratory development, the proposed systems will be field-tested in Zambia to assess real-world effectiveness, cost feasibility, and environmental sustainability, advancing toward industry adoption. The techniques are transferable to Europe and other mineral-rich regions worldwide.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2025-PF

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Coordinator

LONDON SOUTH BANK UNIVERSITY LBG
Net EU contribution
€ 276 187,92
Address
BOROUGH ROAD 103
SE10AA London
United Kingdom
Region
London Inner London — East Lewisham and Southwark
Activity type
Higher or Secondary Education Establishments
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Total cost
No data

Partners (2)