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Small Differences, Big Impact: Achieving Effective Selective Separations from Water by Tuning Ion Transport Processes

Project description

New electro-driven methods for ion separation

Separating ions with similar properties, such as sodium and potassium, is challenging but has implications for water treatment, agriculture and resource recovery. The ERC-funded ION-TRACE project will explore new approaches to address this issue. By focusing on how ions behave during adsorption and desorption, ION-TRACE will use advanced electro-driven techniques, including battery deionisation and electrochemical ion pumping to achieve efficient separation. Key activities include optimising ion-selective materials and refining process configurations to enhance efficiency and stability under various conditions. The proposed research will boost ion separation technology, while also supporting reduced freshwater consumption and resource independence for Europe.

Objective

"Selective ion separation plays a crucial role in Selective ion separation plays an important role in water treatment, resource recovery, and agriculture. As the need for sustainable water use intensifies and global demand for strategic resources like lithium increases, developing efficient and selective ion separation technologies becomes essential. In particular, the selective separation of ions with similar properties, such as sodium (Na+) and potassium (K+), remains a significant challenge.

In the ION-TRACE project, I aim to overcome this challenge by developing innovative separation processes. My approach involves pioneering electro-driven processes, including Battery Deionization (BDI) combined with Concentration-Dependent Switching (CDS) and Electrochemical Ion Pumping (EIP). These processes take advantage of differences in ion adsorption and desorption dynamics to separate two similar ions.

The methodology of this project focuses on understanding ion transport mechanisms, which create specific time differences in ion adsorption and desorption, and identifying strategies to optimize these mechanisms to reach the operational ""sweet spot."" First, I will demonstrate that even a limited selectivity of robust materials can be sufficient to achieve highly efficient ion separation. Next, I will tune the process through the introduction and modification of ion-selective electrodes and membranes, modifications to material structure, and optimizations of process configurations. Synthesized materials will be studied in detail to assess their stability, selectivity, and transport properties under varying experimental conditions, including salinity, pH, presence of complex ion mixtures, and applied electrical field.

By achieving selective separation of similar ions from complex mixtures, ION-TRACE will represent a significant leap in this research field, and provide societal benefits, such as reduced freshwater consumption and enhanced resource independence for Europe.
"

Fields of science (EuroSciVoc)

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Keywords

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Programme(s)

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Topic(s)

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Funding Scheme

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HORIZON-ERC - HORIZON ERC Grants

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Call for proposal

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(opens in new window) ERC-2025-COG

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Host institution

POLITECHNIKA WROCLAWSKA
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 1 993 767,00
Address
WYBRZEZE WYSPIANSKIEGO 27
50-370 Wroclaw
Poland

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Region
Makroregion południowo-zachodni Dolnośląskie Miasto Wrocław
Activity type
Higher or Secondary Education Establishments
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 1 993 767,00

Beneficiaries (1)

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