A Norfolk wastewater firm has secured a contract with a medieval whiskey distillery in the Scottish Highlands, thanks to its innovative eco-approach.

Norwich-based Alpheus Environmental, which uses a high-tech method to generate renewable energy from its wastewater treatment process, has signed a five-year contract with the Glenmorangie Distillery in Tain, Scotland.

The company first started working with the distillery in 2020, and now generates around 20% of the energy needed to run the site via its anaerobic digestion system.

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This biological process uses microorganisms to break down organic material in the waste liquid, creating renewable fuel and helping to treat the water.

The gas is cleaned and fed to the site’s steam boilers to provide a sustainable energy source.

Marcus Green, head of operations at Alpheus, said: “The innovative approach we’ve taken has given us a defined but adaptable path to achieving our agreed sustainability goals.

“This includes maximising gas production and ensuring consistent quality of the water released in to the Dornoch Firth.

“Over the next five years we will use our expertise to seek new technologies, and greener solutions to maintain momentum.”