The demo-site in Helsingborg, called H+ is based on a source separation system for black water and grey water for their subsequent treatment by means of anaerobic digestion, where the effluents are converted into fertilisers (ammonium sulphate and struvite). This process of source separation systems takes place within the H+ urban renovation project that includes 320 apartments in the first phase housing 1800 people- allows for the Run4Life concept to be adapted to the Swedish legal requirements.
The decision to implement this treatment system in this area of H+ was born out of the environmental profiling of the area (City of Helsingborg, 2011). The H+ area was expressed as a realized need, by the water utility, to get hands-on experience on operation and impact of wastewater systems possibly better adapted to future climate change and a growing need for recycling of resources. In this sense, also several Swedish municipalities have shown interest in the system, and the NSVA and the city of Helsingborg have given several informative talks to delegates from these municipalities.