Yorkshire Water is leading a £2.3 million initiative, funded by the Ofwat Innovation Fund, to transform sewage sludge into valuable products such as biochar, vitrified ash stones, and hydrogen-rich synthesis gas. This project, which includes partners like EnertecGreen, Queen’s University Belfast, Carbon Trust, and major water companies, aims to tackle waste management in the water industry using Advanced Thermal Conversion Gasification technology.

The initiative focuses on eliminating contaminants from sewage sludge and repurposing the byproducts for various uses. Biochar, a carbon-rich material resembling charcoal, can be used in wastewater treatment, as an additive in brick manufacturing, and for enhancing soil water and nutrient retention. Its resistant nature also makes it a viable option for long-term carbon sequestration.

Vitrified ash stones, another byproduct, can be used as sustainable aggregate in the construction industry, potentially reducing its carbon footprint. The hydrogen-rich syngas generated from this process can be utilized to produce green electricity and high-value products like aviation fuel.

The consortium’s efforts represent a significant step towards a circular economy, promoting sustainable waste management practices. The project’s success could lead to widespread adoption of this technology, benefiting customers, the environment, and the water industry by producing sustainable wastewater treatment media, generating green electricity, and creating valuable products.

By addressing these challenges, Yorkshire Water and its partners are helping shape a more sustainable and resource-efficient future for the water sector.

READ MORE: Yorkshire Water heads £2.3 million initiative to transform sewage sludge into usable products