IVL Swedish Environmental Research Institute

Circular Water Solutions in southern Gotland

In recent years, the island of Gotland has experienced a severe water crisis, negatively affecting tourism and small-scale industries. Innovative circular water solutions are therefore being tested and evaluated in the testbed area Storsudret in southern Gotland.

Gotland has been selected as one of the demo cases in the EU project NextGen, which aims to boost sustainability and bring new market dynamics for water in ten high profile demonstration cases across Europe. The project will assess, design and demonstrate a wide range of integrated system solutions. The challenge in Gotland is to collect and store the water to ensure an adequate supply during the summer months. An important part of this is to explore means and ways for water retention at Storsudret. An important and critical part of the project is communication and engagement activities with local stakeholders such as farmers and citizens.

The testbed installation has received a national funding of about EUR 3.5 million from the Swedish Innovation Agency. In addition to the lead partners, IVL Swedish Environmental Research Institute and the municipality of Gotland, the participating organisations are the Baltic Sea Forum, KTH Royal Institute of Technology in Stockholm, Uppsala University, SGU Geological Survey of Sweden, In Situ Instrument, the ENWA Group and Monsson Energy.

Key innovations & actions
– Rainwater harvesting using automatic floodgates to replenish aquifers and monitoring of aquifer levels
– Decentralized membrane treatment of raw wastewater for reuse to reduce volumes treated at the central WWTP (waste water treatment plant)
– Climate neutral desalination powered by solar energy to overcome the carbon footprint drawbacks


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