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Outside Östersund, Purac has built an energy-efficient biogas plant for Bioga i Jämtland-Härjedalen AB. The plant receives a variety of organic substrates – primarily dairy by-products1, cattle slurry and food waste. The plant pre-treats and digests the organic substrates and thus converts them into biogas, a fossil-free fuel, and a nutrient-rich liquid biofertilizer.

Purac, together with Alviksgården Lantbruks AB, has developed a process solution, Purac ReNuTM, which converts the digestate from a biogas plant into an attractive, nutrient-rich fertilizer product that provides easier fertilizer management, reduces the need for fossil fertilizers and reduces nutrient leakage to the soil.

The Färgens waterworks in Alingsås municipality is being expanded to meet future needs, and the existing distribution pumps are being replaced with new pumps. Read more about how it was done.

From downtime to operational reliability – a new generation of pumping stations. To reduce operating costs and improve operational reliability, Luleå Miljöresurs installed Sweden's first Awalift pumping stations in 2024 – a closed system with a separation vessel that effectively prevents clogging of the pumps and reduces general wear and tear.

By: Andrea Andersson, Maja Leman, Emma Bengtsson, Malin Molin

By: Vera Pettersson, Melker Jansson, Julia Ho & Klara Säving A survey of the water supply and sanitation industry's sustainability work carried out during four internship weeks in the summer of 2025. The host companies included Sweco, Vattenresurs, Aarsleiff Piping Technologies and Norrvatten.