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Microbial synthesis of magnetic nanostructures for cobalt recovery from arsenic-rich tailings

Project description

Low-cost biotechnology for cobalt recovery from arsenic-rich resources

Cobalt (Co) is vital for clean energy technologies, particularly in electric vehicle batteries and energy storage systems. However, its supply chain is vulnerable, with a forecasted deficit expected by 2030. Also, many cobalt resources remain untapped, including arsenic-contaminated tailings and arsenic-rich primary ores known as 5-element deposits. Supported by the Marie Skłodowska-Curie Actions programme, the BioMagiCo project is developing low-cost biotechnology to recover cobalt from arsenic-rich resources in Europe. It will focus on bioleaching mine waste and using bacteria to create stable cobalt-doped magnetite nanostructures for efficient cobalt recovery. The project will also address arsenic challenges and provide the researcher with training in related fields, including sustainable energy solutions.

Objective

Cobalt (Co) plays a crucial role in clean energy technologies, particularly batteries for electric vehicles and energy storage systems, making its supply essential to global markets. However, Co has a highly vulnerable supply chain and a growing supply deficit has been forecast to emerge by 2030. Significant Co resources remain unlocked as arsenic (As) polluted tailings from legacy sites and As-rich primary ores, referred to as 5-element deposits. Through the project BioMagiCo, I will develop a new low-cost, sustainable, biotechnology that can address European Co supply chain issues by unlocking these As-rich Co resources. The project focusses on bioleaching mineralogically complex polymetallic mine-waste, immobilising the As as Fe-arsenate phases, and then harness the ability of bacteria that can reduce ferric iron (Fe³⁺) and incorporate Co²⁺ ions under anaerobic conditions, forming Co-doped magnetite (Fe₃₋ₓCoₓO₄) nanostructures (NS). Co-doped magnetite NS have remarkable magnetic and chemical stability positioning these NS for selective Co recovery using low-cost, low-energy magnetic separation. I will develop this through four Research Objectives (1) Develop a functional microbial consortium will be developed to bioleach Co-bearing minerals from As-bearing mine wastes (2) Develop a protocol to overcome problems associated with the presence of As by precipitation of Fe-arsenates (3) Establish controls on Co doping levels in Co-doped magnetite NS during biosynthesis (4) Develop a conceptual process flowsheet at lab-scale for a techno-economically viable upscaled biosynthesis operation. Through BioMagiCo, I will be trained in mineralogical analytical workflows, geomicrobiology and bioleaching, synchrotron methods, developing techno-economic flowsheets, museum collection management, data archiving, public engagement and other professional skills that will establish me as a potential R&D Leader in sustainable, low-carbon energy solutions.

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

NATURAL HISTORY MUSEUM
Net EU contribution
€ 260 347,92
Address
CROMWELL ROAD
SW7 5BD London
United Kingdom
Region
London Inner London — West Kensington & Chelsea and Hammersmith & Fulham
Activity type
Public bodies (excluding Research Organisations and Secondary or Higher Education Establishments)
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Total cost
No data

Partners (1)