Lyras is among Børsen Bæredygtig Cases

In the spring of 2024, Børsen Bæredygtig presented for the third time Børsen Bæredygtig Cases, where a number of good, innovative and green projects in Danish business life are highlighted.

Lyras has developed the raslysation technology, which inactivates microorganisms in drinks and other opaque liquids using UV light. The technique is less energy-intensive than traditional pasteurization and filtration. With raslysation, between 60 and 90 per cent energy and 60 to 80 per cent water is saved compared to traditional pasteurization. If a dairy, which produces 40 tonnes of whey per hour, switches to raslysation instead of traditional pasteurization, it will emit approx. 850 tonnes of CO2 less per year. This corresponds to the energy consumption of driving 164 times around the Earth in an ordinary petrol car.

Raslysation uses a UV light source combined with a light filter that concentrates a certain type of UV light. The liquid is directed past the light source in one movement, illuminating all parts of the liquid. This inactivates all unwanted microorganisms. At the same time, more of the original taste as well as vitamins and proteins are preserved in, among other things, dairy products, juices and beer.

Raslysation not only helps the process industry save large amounts of energy and water – it can also help save several 100 liters of chemicals per day, many tons of plastic filters as well as several tons of steel for manufacturing plants. In addition, the transport of contaminated waste water is avoided, and an average plant saves around 500 tonnes of CO2 per year compared to the traditional production method.

https://borsen.dk/nyheder/baeredygtig/cases/2024/uv-lys-draeber-bakterier-og-sparer-energi