Farmers and researchers in the UK are working on a pioneering process to transform livestock slurry into biochar—a substance with significant carbon storage potential. BiocharBiochar is a carbon-rich material created from biomass decomposition in low-oxygen conditions. It has important applications in environmental remediation, soil improvement, agriculture, carbon sequestration, energy storage, and sustainable materials, promoting efficiency and reducing waste in various contexts while addressing climate change challenges. More, traditionally made from plant biomassBiomass is a complex biological organic or non-organic solid product derived from living or recently living organism and available naturally. Various types of wastes such as animal manure, waste paper, sludge and many industrial wastes are also treated as biomass because like natural biomass these More, is created by heating organic materials without oxygen. This innovative project focuses on using cattle slurry, which is 95% water, as the raw material.

Led by John Owen of Lafan consultancy and experts from Coleg Sir Gâr, the initiative has received £50,000 from Innovate UK. Their method separates slurry solids and dewaters the material, allowing it to be heated to over 400°C to produce biochar. This substance can store carbon underground for thousands of years while also offering agricultural benefits, such as improving soil health, reducing methane emissions, and serving as an animal feed supplement.

Major companies like Microsoft are driving demand for carbon offset solutions, offering farmers a potential new income stream. If successful, slurry-based biochar could support rural economies while helping businesses meet net-zero targets. Castell Howell Foods is among the supporters, recognizing its potential in reducing supply chain emissions.

The team is awaiting testing at a Welshpool facility to produce the first batch of slurry-derived biochar. They are optimistic about its viability, though the economic feasibility of large-scale production remains to be evaluated.

By repurposing slurry, the project offers a sustainable alternative to current practices, aligning with new regulations restricting slurry spreading and advancing carbon capture innovation.

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